Why I started observing pollinators

and how I learned to appreciate all the other “creepy crawlies” that dominate the world around us.

I was raised as a bird watcher. From a young age, I was counting visitors at the bird feeders, reading bird guides, and taking binoculars on family trips. As a birder, it’s safe to say that I was ignorant of nearly everything around me. I kept lists of bird species and the occasional mammal, but I knew almost nothing about the trees they were perching on and the insects they were eating. I dabbled in bird photography in high school, but I was never good.

Bufflehead ducks are one of my favorite birds

I wish I could say my focus shifted because of a grand realization that insect populations are collapsing (read about The collapse of insects (reuters.com)) or noble goal to “save the bees” (learn more at Bring Back the Pollinators | Xerces Society). I wish I had a fun story to tell about the moment something clicked and I realized the vast biodiversity I had ignored for 25 years. I wish … you get the idea. Instead, I stumbled into this. I bought a house with an empty yard buried in gravel. I began buying whatever plants looked good at the nursery. I killed many things that had no business in a dry, sunny New Mexico garden with a lazy groundskeeper (me). If not for meeting Laurel Ladwig, director of the Albuquerque Backyard Refuge Program, and COVID shutdowns, I may have remained ignorant for the rest of my life.

Native plasterer bee (genus Colletes) licking minerals and sweat from my finger while hiking

Laurel Ladwig was the inspiration and COVID provided the opportunity. What do I mean? Back in 2021, I was recruited by Laurel to participate in the City Nature Challenge (2023 edition starts April 28). This was my introduction to iNaturalist and I noticed many plants and insects in my neighborhood for the first time. She also encouraged me to get The Bees In Your Backyard book, which opened my eyes to the diversity of native bees. Arizona and New Mexico each have other 1,000 known species!

Native green mason bee (Osmia, subgenus Melanosmia) visiting beardtongue flower (Penstemon bicolor) in author’s garden

COVID shutdowns provided the opportunity to work from home and spend more time in my garden. I started to pay attention to non-bird activity. I dusted off my Nikon D100 from high school and screwed on a 50mm macro lens. I took many mediocre pictures, but I was hooked. I had no idea so many critters were living in my garden. Seeing a new species and taking a clear, well composed photograph continues to provide rushes of excitement nearly two years later.

Big-eyed bugs (genus Geocoris) are one of the many invertebrates I never noticed before using a macro lens. These predators are beneficial insects in our gardens.

Elliott’s top reasons for observing and photographing invertebrates:

1) Striving for high quality photos that show all features necessary for identification

2) Documenting garden visitors as a tool to encourage other people to transform their yards into wildlife habitat

3) Distribution of many invertebrate species is poorly understood, so every sighting has the potential to be a new county or state record

4) Contributing photos and occurrence records to iNaturalist.org and bugguide.net

5) Sharing photos of unique animals on this blog, social media platforms, and in pollinator presentations

6) Hands-on learning, such as watching how bees collect pollen and build nests

7) It’s enjoyable!

Hoverflies, like this Eupeodes volucris, are beautiful pollinators and beneficial insects (sometimes called “aphid eaters”)

Pollinator Garden Plants: Catclaw Acacia

Senegalia greggii (formerly Acacia greggii) is native to the southwestern united states and northern Mexico at elevations below 4500′. It’s a large thorny shrub or small tree growing to 20′ tall. Flowers are fragrant. Full to part sun, low water and hardy to 0 degrees F.

Flowering Season: J F M A M J J A S O N D

Sonoran Desert Native, great nectar plant, attracts native birds and super larval host plant:

  • Mexican Yellow (Eurema mexicana)
  • Mimosa Yellow (Eurema nise)
  • Reakirt’s Blue (Echinargus isola)
  • Marine Blue (Leptotes marina)
  • Hubbard’s Small Silkmoth (Sphingicampa hubbardi)
  • Tricolor Buckmoth (Hemileuca tricolor),
  • Black Witch Moth (Ascalapha odorata),
  • Owlet Moths (family Noctuidae)
  • Mesquite Stinger Flannel Moth (Norape tenera),
  • Naval Orange Worm Moth (Amyelois transitella)
  • Merry Melipotis Moth (Melipotis jucunda)

Common names include catclaw acacia, catclaw mesquite, Gregg’s catclaw, paradise flower, wait-a-minute bush, and wait-a-bit tree; these names mostly come from the fact that the tree has numerous hooked prickles with the shape and size of a cat‘s claw which tend to hook onto passers-by; the hooked person must stop (“wait a minute”) to remove the prickles carefully to avoid injury or shredded clothing.

Wikipedia

Found on flats, washes, and slopes below 5,000 ft. in California, Arizona, Nevada, Utah, New Mexico, Texas, and south into Northern Mexico

Spadefoot Nursery

Other Resources:

Maricopa Pollinator Pathway Plant List

PollinatorWeb Recommended Plants

Mountain States Wholesale Nursery

Smart Plant Tags

Imagine a world where every garden, school yard, and public space becomes an immersive and educational experience.

A place where nature and knowledge intertwine to create stunning interpretive trails.

With a simple scan using your smartphone, you’ll unlock a whole new level of information and convenience.

Glamorous Moths #7 – Pine Carpenterworm

Givira lotta, the Pine Carpenterworm moth. I have a soft spot for large, fuzzy moths. This one is a member of the Carpenter and Leopard moths. From Wikipedia:

The Cossidae, the cossid millers or carpenter millers, make up a family of mostly large miller moths. This family contains over 110 genera with almost 700 known species, and many more species await description. Carpenter millers are nocturnal Lepidoptera found worldwide, except the Southeast Asian subfamily Ratardinae, which is mostly active during the day.

Pinned adult moth uploaded to iNaturalist.org by Ronald Parry

This moth is found in California Arizona, New Mexico, and Colorado and most likely in pine forest areas of northern Mexico.

Adult pine carpenterworm moth uploaded to iNaturalist.org by C Mallory

Larvae feed on outer bark of ponderosa pine. I couldn’t find a caterpillar picture in this genus on iNaturalist. Here’s an example of another species in Family Cossidae.

Goat Moth caterpillar uploaded by Sergey Mayorov to iNaturalist.org

Glamorous Moths #6 – Rothschildia Silk Moth

Our sixth featured moth is Rothschildia cinctus. They are found from southern Arizona to Panama.

Rothschildia cinctus on iNaturalist.org seen by Priscila Moreno in Tamaulipas, Mexico

According to Wikipedia: Saturniinae is a subfamily of the family Saturniidae. They are commonly known as emperor moths or wild silk moths. They are easily spotted by the eyespots on the upper surface of their wings. Some exhibit realistic eye-like markings, whilst others have adapted the eyespots to form crescent moon or angular shapes or have lost their wing scales to create transparent windows. They are medium to very large moths, with adult wingspans ranging from 7.5 to 15 cm, in some cases even more. They consist of some of the largest sized Lepidoptera, such as the luna moth, atlas moth, and many more.

Rothschildia prionia caterpillar (related to R cinctus) posted by alenilson on iNaturalist.org

In Arizona, these silk moths use Hopseed Bush, Dodonaea viscosa, as a larval host. You can read more about this plant at Arizona Living Landscape & Design (landscapearizona.com)

Musings from an Albuquerque Pollinator Paradise

If you’re reading this from New Mexico, the Valle de Oro National Wildlife Refuge Grand Opening of Visitor Center and 10th Birthday is on Saturday, September 10th, about a month away. I hope you’ll join us!

It’s summer in New Mexico and it’s hot and dry. Not as hot as Phoenix, thankfully! We received nice rain in June and July to break a massive dry spell – 65% of New Mexico is classified as ‘Severe Drought’ or worse, compared with 96% 3 months ago – but I’m always hoping for more. Most days the clouds build up and merely tease us with a chance of rain. Sunflowers are thriving, so my yard (and driveway) is a beautiful mess of yellow.

Prairie sunflowers, Helianthus petiolaris

I’ve dedicated more time to nocturnal critters this summer. It’s super rewarding to check the porch lights for moths and find a new one. So many cool insects hang out at night if you go and look.

Male Douglas Fir tussock moth, Orgyia pseudotsugata
Adult Chaetoleon pusillus antlion

There are plenty of diurnal critters too. Wasps (yes, wasps!) in all sizes and colors and a few new native bees for my yard list are among the highlights. It is lovely to sit outside with my camera, surrounded by nature. I enjoy watching bees collecting pollen, wasps hunting for a meal, and hummingbirds chasing each other.

Iridescent female parasitic wasp, Leucospis birkmani
An unexpected surprise: White-belted Ringtail dragonfly, Erpetogomphus compositus
Male American sand wasp, Bembix americana

Quick Biodiversity Update

iNaturalist is an invaluable resource for identifying wildlife and tracking my sightings. The numbers of species from my April blog post are in parentheses.

  • 190 butterflies and moths (59)
  • 93 flies (58)
  • 90 ‘true bugs’ [Hemiptera] (50)
  • 87 beetles (37)
  • 85 bees (75)
  • 81 wasps (45)
  • 29 spiders (21)
  • 14 antlions and lacewings [Neuroptera] (not mentioned before)
  • 3 mayflies (1)

Musings from a Phoenix Pollinator Garden

7June22 Plants in the garden, and sharing plants from the neighbor’s garden

Most urban and suburban lots are small relative to the natural tracts of native habitat, so there are limits to what we can plant, both in size and variety.

And, it turns out, putting your yard into context with the nearest forage/host area is quite important because many insects are limited in how far they can travel for food and lodging. To some, a football field of length can push limits of mobility.

So if you are close enough to a natural area that you can leverage it’s resources, fantastic! Add one or two specimens of various native plants can still get you to critical mass if considered as shared resources with the natural area. Same goes for sharing other resources, like water and nesting habitat.

Similarly, you can view the plants and other resources in your neighbor’s yards as something to be shared by the pollinator web of animals.

The neighbor behind us has a large Sissoo tree (not a tree that I would recommend), and the birds love the height and cover it affords. Good thing, because our backyard is only 2 years old, and even our fast growing mesquite and palo verdes need a bit more time to become truly comfortable perches.

Other neighbors have citrus, hibiscus and Arizona Yellow Bells to share. Let’s look at how some of the plants in and around the garden are looking on this 109 degree day.

Desert Willow in our garden is loving the heat
Rush Milkweed in our yard is a great nectar source this time of year
Peacock Flower in our garden has come back from a cut-back in the spring
Hopbush is a great low water screening plant in our garden
The Brittlebush finished their late-winter and spring flowerings, providing much needed food
Firecracker Penstemon is still showing a will to flower, but has mostly gone to seed
Desert Marigold is in its second bloom period. Finches love the seeds
Peaking over the fence, a beautiful hibiscus (thanks neighbor)
Another shared resource, loved by hummingbirds, host to Painted Lady and Gray Hairstreak
Arizona Yellow Bells, another great nectar plant (thanks neighbor!)
And Sunflowers have turned out to be a great addition to the vegetable garden

I’ve found some interesting bees on the sunflowers, but no butterflies so far. On the non-pollinator side of things though, the sunflowers attract a wide array of insects from lace bugs, psyllids, long legged flies, assassin bugs and lady beetles! Oh, and birds eating the insects off of the leaves.

Musings from a Phoenix Pollinator Garden

7June22 Blood-colored Milkweed Bug, Tarantula Hawk Wasp, Queen Butterfly, Ceraunus Blue Butterfly, Great Horned Owl

The beauty of a pollinator garden is a two-edged wand:

  • The reward of knowing you are contributing to the health of the ecosystem that you inhabit
  • The treasure hunt of discovering the web of characters that visit your paradise

In the previous installments of this post I presented the blank slate layout of our garden along with the ideas that drove the implementation of the garden. In these next installments I’ll be sharing the visitors to the garden, and in the process also showing the plants and structures that define the spaces.

Blood-colored Milkweed Bug on Desert Milkweed

There have been discussions about whether milkweed bugs are a friend or foe in the garden, but personally I haven’t found them to cause significant harm and I consider them part of the self-balancing ecosystem of the garden.

Although it may appear that your garden has only one or two varieties of milkweed bugs, closer observation is likely to reveal more diversity. Our garden also has Large Milkweed Bugs, Water Small Milkweed Bugs and Southern Small Milkweed bugs.

New World Tarantula-hawk Wasps on Desert Milkweed

These wasps can be quite intimidating, flying like military helicopters in the garden, but they take little interest in humans. They do seem to love the Desert Milkweeds (Asclepius subulata) and Desert Willows. As the name implies, these wasps hunt tarantulas, and there must be a lot of tarantulas around because the garden is currently a-buzz with these wasps. I love tarantulas, so I’m keeping the faith that eco-balance is holding steady.

Queen on Desert Milkweed

So if there is any doubt about the versatility of milkweeds in the garden, it should be apparent at this point that they serve as more than host plants for Monarch and Queen butterflies.

Queens are aptly named, so regal and beautiful! Last year I “rescued” a caterpillar right before a cold snap and raised it indoors: The Making of a Queen.

Ceraunus Blue on Baja Fairyduster

Blues are tiny wonders in the garden, and you need to be up close to appreciate their beauty and differences. The top side of the wings are blue for males, but females vary from blue to silvery-blue to brown. Host plants for the Ceraunus Blue include legumes like Mesquites and Acacias.

Great Horned Owl in a Sissoo Tree

Also known as the “tiger of the air” this owl primarily hunts rabbits and hares, rats and mice, and voles. One look at those talons and it’s clear this is a very capable predator, and it will hunt whatever it can overtake.

I was very excited to see this owl swoop into the tree during daylight hours, and even more fortunate to have camera at hand. Local nesting birds were pestering the owl, trying to protect their nests I would guess, but the owl was unflappable and stayed in the same spot for hours.

Meet the Author: Dr. Shaun McCoshum

Shaun McCoshum is the author of two books on pollinators and gardening – Gardening for Wildlife in the arid south west regions and Inviting Pollinators and Other Wildlife Into Your Garden – available on Amazon.com. He received a master’s degree in botany from Miami University (Ohio) and a doctorate from Oklahoma State University in zoology.

Hunt’s Bumblebee on Rabbitbrush

What is your background? How did you first get interested in bees and gardening for wildlife?

From a young age I had been gardening and using permaculture techniques before I even learned the term. My maternal grandparents lived a block away, and they both were in their late teens when the Great Depression hit. When I was six, both my parents lost their jobs and we became really poor, and very food insecure, so my grandmother got to work. She had me helping her do work to grow fruits and vegetables in her garden. Most people did not realize how much of the yard was growing food for us. In back we had more organized food gardens. I continued gardening throughout my younger years; then in high school, I started working as a landscaper and helping friends and family install similar gardens, all the while being aware that areas needed to be cared for to support wildlife to help control pests and pollinate flowers.

These experiences simply paved the way for me to study biology at Humboldt State University and get a botany minor. Between my master’s and PhD, I worked in conservation, which really helped me grasp ecological niches, microhabitats, and looking at areas from the animal’s perspective. During my PhD, I focused on pollinator communities and worked on side projects with monarch butterflies. I went on to do my post-doctoral work at Cornell University working on bee communities in the Mojave Desert and their vegetation community associations, as well as large-scale solar farm impacts to those communities. After my post-doc, I worked as the preserve manager for Westchester Land Trust in New York, then moved onto consulting and permitting, which I do now, while still collecting data and publishing research and books.

Gray hairstreak and bee fly on Cowpen daisy

Why did you decide to write a gardening book?

The short answer is because a few people told me I should. With my background in native bees, monarch butterflies, ecology, and conservation, I end up doing a lot of public speaking. I also enjoy reading gardening articles. Between these two things, I kept answering questions that were clearly based on incomplete or incorrect information, most of it printed in gardening articles and even coming from some conservation groups. My first book focused only on the arid regions of North America to help clarify some of the misinformation that is spread around. [Read my review of his first book here.]

Who is your intended audience? Anyone who has an interest in urban ecology, wildlife conservation, or gardening.

Ashmeadiella bee and flower beetle on native bindweed

What piece of advice would you give to people wanting to start a pollinator garden?

Pollinator gardens should be viewed in context of their surrounding landscape and provide shelter, in addition to native plants for target species. For example, in densely populated urban areas where lawns are abundant and habitat is lacking, a small pollinator garden will not be accessible to bee species that have been driven away, nor will it support many bees overall. Therefore, providing an abundance of flowers for smaller generalist bees and butterfly host plants will be more useful than flowers that support just a few bee species or do not host any butterflies. Resources for nesting bees and pupating butterflies would have to be selected based on the region, but a few logs with holes drilled in always helps. Conversely in areas where there are more wild, plant-filled areas, pollinator gardens that use native plants uncommon in the area will help local pollinator communities because species dependent on those plants are likely still nearby. Viewing a garden from the landscape context is also helpful when trying to attract other wildlife like birds, toads, or even lizards. 

Bordered patch caterpillar on sunflower

What kind of research did you do for the book?

So much. In addition to the literal decades of studying, reading scientific literature, doing conservation work, new data collection, and gardening – I started compiling data for topics and reading various forums, print articles, and reviewing resources gardeners might be using. The most important research I did for this book was probably gathering the data for plant and bee associations, and their current ranges. For the bee species profiles I also reviewed a lot of literature searching to find what substrates each species nested in. I put these aspects together to provide specific information on what a pollinator garden that would “save the bees” really looks like, going beyond articles with native plant lists that benefit honeybees, not native bees.

For the articles that do talk about “bee hotels,” they inadvertently prioritize a nesting behavior used by about 30% of bees and rarely address proper size or care of those structures. There are very few articles that address ground nesting bees, which my new book covers; but promoting ground nesting bees is showing up more and more on online platforms, which is good to see.

Checkered skipper on paperflower

Were there any surprise findings? What did you learn in the process?

The most surprising thing I found was how much we simply do not know about pollinators. I had been somewhat aware of the lack of data, but it wasn’t until I was trying to compile information that I really grasped the lack of data. For example, there are over 4,000 species of native bees in the continental United States, but researchers have described the nests of less than 500 species. Frustratingly, many of those descriptions do not characterize soil texture or document entrance solar exposure, both of which are important to nesting bees. So, in this book, soil diversity and structure are discussed to help cover different possibilities. Sandy soils are used more often by nesting bees than any other type of soil.

It was also shocking to see, and this is in the book too, that more than 50% of counties in the contiguous United States have fewer than five native bee species digitized as of 2020. We simply have not done a thorough survey. The data for which bee species feed on which plants are also lacking. Even in this book I could only report plant associations, and I explain this does not mean the bees will feed on those plants. When bee researchers collect bees, they often do not include notes on if the bees were collecting pollen, feeding on nectar, collecting oils, plant parts, or simply sitting on the plant. Most likely, the bees were feeding in one way or another, but the data simply do not exist for most bee species yet. Luckily, community science platforms like iNaturalist are improving our knowledge, but it is difficult to help gardeners choose plants for their gardens when we aren’t sure which bee species might be in the area.

Male longhorn bee (Melissodes) on Spiny goldenweed

All pictures by Shaun M. McCoshum, some rights reserved (CC BY-NC). Some answers edited for clarity and length. My thanks to Shaun for agreeing to be interviewed. – Elliott

Book Review: Gardening for Wildlife in the arid south west regions

Thank you for reading my review of “A short introduction to Gardening for Wildlife in the arid south west regions” by Dr. Shaun McCoshum. If you are interested, the book is available for purchase on Amazon.com

With 29 full-size pages, this book is lightweight, but not light on content. It is specifically aimed at arid environments, which is refreshing given the lush, yet unrealistic, gardens portrayed on many websites. Even if we long for shady lawns, it’s irresponsible to maintain high water use landscaping in Arizona and New Mexico.

Native desert landscapes can serve as inspiration for our own gardens, and they are the best way to support native wildlife

The book is essentially split into 5 sections: brainstorming/planning for your garden, reptiles, bees, butterflies, and birds. I would characterize this book as in between a do-it-yourself guide and a reference manual – it has explicit instructions for planning your space, lizard sunning spots, bee hotel, and water feature, but also leaves it open to the reader in terms of selecting plants and doing further research.

The ligated furrow bee, Halictus ligatus, and Spiny goldenweed, Xanthisma spinulosum are discussed in this book

One of the strengths of the book is the knowledge Dr. McCoshum brings to the bee section. I love the discussion of ground-nesting bees, which are the majority of native bees in the world (and especially the desert southwest). The book addresses crucial elements of bee habitat in addition to the plants that they forage. Regarding the plant lists, you may want a wildflower book or Internet browser handy, as the names are largely in Latin.

Bottom line, I recommend this book. I think it will be most useful to people starting out, renovating part of a yard, or wanting to attract more of a specific kind of wildlife, like bees or lizards. It would make a great, not so subtle, gift to a neighbor who’s still hanging onto their lawn. You can hear more from Dr. McCoshum in this Youtube recording of a talk he gave for NMSU: https://youtu.be/Q6v6CLOui6c

Glamorous Moths #5 – Penstemonia

The way that gardeners feel about moths and butterflies is often quite different, despite how closely related they are. We are happy to grow milkweed to attract Monarchs and allow the caterpillars to devour whole plants. Weed is in the name milkweed, so I think we value the plant more for its role in the Monarch’s life cycle. On the other hand, who ever heard of growing corn to attract Helicoverpa zea or tomatoes to encourage Manduca sexta?

Perhaps the most despised moth is the peach tree borer, which “bring major harm to important fruit-crop trees, destroying the tree’s vascular system through boring and girdling while inducing plant pathogens to invade the weakened tree” (Source). That’s terrible, right? How dare those selfish moths cripple our precious fruit trees?

Without further ado, I would like to introduce the Penstemon clearwing, also known as the Beardtongue borer.

Penstemonia clarkei, Clarke’s Penstemon clearwing, seen in Los Alamos, New Mexico

Penstemonia is a genus of moths in western North America (presumably including northern Mexico) in the family Sessiidae (clearwing moths). [Quick sidenote: Hemaris clearwing moths are in the hawk moth family, Sphingidae.]

Clearwing moths often resemble wasps and bees in coloration and marking. They have elongate wings, often transparent owing to the lack of scales. Most of the larvae are borers in the limbs, trunks, bark, or roots of trees, shrubs, herbs and vines (like the infamous peach tree borer). Some bore in galls on woody or herbaceous plants. Majority of adults take nectar. [Source: bugguide.net]

What about our Penstemon clearwing? 

There are at least 5 species of Penstemonia in North America. Larval feeding is probably limited to Penstemon or closely related plant species in Cheloneae. (I’ve discussed Penstemon plants on the blog before: http://pollinatorweb.com/meet-the-plants-more-beardtongues/). The larva will be found within a stem [or roots] at crown level and damage appears as a wilting or dieback of individual stems. Pupation is probably in the soil at the base of plants, but there is no description of them. [Source: Colorado State University Extension (colostate.edu)]

I have a feeling that populations of Penstemonia moths will start to increase and spread as more gardeners grow native, drought tolerant beardtongue plants. I hope you will welcome these pollinators into your yards with open arms.

Musings from a Phoenix Pollinator Garden

Design: TJ’s framework drawing for pool and landscape. This is the third post in this series. You can read the first post here.

Bucking the trend of right angle, manicured modern design, we decided to go with organic shapes to soften the landscape and align with the natural shape of the plants. Have we waited long enough for this to come back into vogue? That has yet to be seen, but, of course, it’s a moot point since we’re designing the yard for ourselves (and then, ultimately, pollinators too!)

It’s worth noting that every pool designer was only offering rectilinear pool designs. In fact, our pool builder said he had not built a freeform pool in about a decade. Fortunately for us, TJ is a true landscape artist and provided a framework that we loved.

Landscape Framework (tjfitzloff@gmail.com)

On the left side of the drawing is the North Side yard. As previously mentioned, this area was defined as a xeriscape with walkways, with a strong need for privacy in the east corner, and a requirement for water retention and control for roof runoff.

On the right side is the South Side yard, which was defined with oasis elements around the pool, a strong need for privacy at the south wall, and a requirement for water retention and control for roof runoff.

I added drip irrigation infrastructure in four zones:

  • South side yard
  • North side yard
  • North side along the house
  • Cacti and succulents

The final implementation of this plan varied from the foundation drawing, as is often the case with the best laid plans. Considerations affecting change included:

  • A 3 year plan for privacy, which required choosing faster growing plants at a higher density than shown in the drawing
  • Plant availability – I don’t have a landscape license so couldn’t buy wholesale, but did almost all of the purchasing and planting. Some plants called out in the drawing were not practical to procure and plant given the desired size or function.
  • Cost, of course. As anyone who has planned and completed large projects is likely aware, you can cost, labor and time, but not all three at once.

Coming up next: Planting, Phase 1

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Musings from a Phoenix Pollinator Garden

Design: North Side Yard

Welcome back! This is the second installment in this series – in the previous post I presented the history of the project and the design considerations for the South Side Yard – you can view that post here.

The side yard on the north side of the house has two separate microclimates. The area near the house gets sun in the summer, including late afternoon sun, but during the late fall until early spring, no sun hits the landscape because it’s shaded by the house. Selecting plants for this area can be a challenge, but with some judicious selections the summer sun can be moderated. This area will also be responsible for retaining and controlling water runoff from the roof.

Towards the block fence the sun exposure is more consistent, especially for taller shrubs and trees. The goal here is to have a xeriscape and walkways, similar in design to a botanical garden.

Northwest Side Yard

On the west end of the side yard there is a mild need for privacy screening, but a much stronger need for shade since the late afternoon summer sun comes blazing over the front gate. You can almost feel the heat radiating from the dirt in this early afternoon picture. So we’ll be using trees and shrubs to create some microclimates for plants and people.

Northeast Side Yard

The east end of the side yard has two large 2-story homes, both with second story balconies, so privacy is a big consideration. Screening will be accomplished with trees and shrubs.

Coming up:


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Musings from a Phoenix Pollinator Garden

Blank Slate

Landscaping a bare earth tract home backyard into a taste of paradise, then evolving it to support pollinators and the web of characters that support an ecosystem. This is the first of a series of posts to share the story of discovery and a labor of love.

It’s 2019, and after 9 months of searching for a resale home, we ended up purchasing a new tract home further out than we wanted, but availability and price aligned to a relative sweet spot, and we made the leap.

(A View from the Rearview Mirror: A great bit of luck, that leap. Who knew a pandemic was on the horizon, and home prices would begin to see upward price pressure that was unimaginable. In fact, when the pandemic first hit, the developer began discounting homes due to lack of demand.)

We had just moved to Phoenix from the midwest and I had taken some landscape classes at the Desert Botanical Garden to learn about plant selection, irrigation and water conservation, so this project would put the newfound knowledge to good use.

I wasn’t, however, yet aware of the importance of native plants to support pollinators in the yard. So the foundational landscape that we designed and planted was focused on a botanical garden style xeriscape with oasis elements. Tuning the landscape for pollinators came later, after the pandemic hit and I became involved with the MetroPhoenix EcoFlora iNaturalist project (more on that later) and the Maricopa Native Seed Library.

South Side Yard Design

South Side Yard (A/C wall of house faces 191 degrees South)

A blank slate can be daunting, as shown above in our initial “scorched earth” yard. This side yard faces slightly off from 180 degrees south, so it gets lots of winter sun. Because of the way the sun travels, however, it also gets late afternoon summer sun, which is the hardest on plants.

A two story home with a second story balcony, and a next door home that’s close to the fence, guided us to design for privacy along the fence line. Another design element would be a pool to make the summers more enjoyable and to add an oasis in the desert aesthetic. We also wanted walking paths to give the yard a botanical garden feel.

And of course, water conservation is a necessary and practical aspect of the design. To efficiently deliver water to the plants I decided to use multiple zones of drip irrigation, and since rain water (hopefully the monsoons will return in 2022!) is the best hydrator for plants, the design will incorporate swales to retain water shed from the roof, which drains along the wall with the A/C unit.

Coming up:


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The potential consequences of ‘bee washing’ by Sheila R. Colla (2022)

Over recent decades, the plight of wild bees and other pollinators has gone from a niche area to one of the most mainstream environmental topics. Scientific research interest, capacity and consequently publications have grown tremendously in recent years, as has mainstream media coverage. The public has been engaged in a variety of ways to “save the bees” including through community science, policy consultation, planting of pollinator gardens and other widespread initiatives and campaigns … ‘Bee washing’, a term coined by MacIvor and Packer (2015), refers to items or actions claiming to support declining bee populations, and thus claiming to be pro-environment, without due diligence or scientific support … The crux of the matter is that when conservation actions are misplaced, as in the case with bee washing, they can actively harm populations meant to be conserved, waste limited resources (e.g. time, energy, money), misinform the public and/or de-legitimize scientific evidence.

Excerpts from Colla, S. R. (2022). The potential consequences of ‘bee washing’ on wild bee health and conservation.

To read more, visit https://doi.org/10.1016/j.ijppaw.2022.03.011 or the International Journal for Parasitology: Parasites and Wildlife, 18, 30–32

Native bumblebees may be threatened by “pathogen spillover” from managed species

In order to better protect wild bee health and biodiversity, conservation actions and policy will have to shift away from bee washing to more evidence-based, nuanced and precautionary approaches. Efforts should focus on reducing the reliance of systems on managed bees and reducing the impacts of managed bee use on wild bees. This will require policy which acknowledges and values the importance of wild bee health biodiversity for pollination services for crop plants and for resilience under climate change. Critical actions to protect wild bee health includes screening and monitoring of pathogens among commercial stock and in adjacent wild populations.

Excerpt from Colla, S. R. (2022). The potential consequences of ‘bee washing’ on wild bee health and conservation.

One Year in my Pollinator Garden

Painted Lady visits apple blossoms (Vanessa cardui on Malus domestica)

I joined iNaturalist in April 2021 to participate in the City Nature Challenge – 2022 edition is coming up soon! – and I had no idea at the time that it would be my go-to resource for appreciating and documenting the visitors in my pollinator garden. I was quickly drawn in by the many friendly and knowledgeable users and the potential to improve my understanding of the natural world. One year later, I’m delighted to reminisce and share highlights from my edible garden and native plant xeriscape. It has been a blast watching, photographing, and learning to identify hundreds of species of plants and animals. Please, join me for a celebration of diversity in my New Mexico neighborhood.

3 varieties of sunflowers (Helianthus) blooming in summer 2021

Getting Started

My journey to hosting a pollinator garden in Albuquerque began with an all but blank slate. The front yard was a sea of bare gravel plus cheatgrass, tumbleweeds, and goatheads, while the back featured 8 Russian olive trees and plenty of dandelions. In 2020, I decided to transform the landscaping and hired a local company to cut down the invasive trees. In their places, I planted Peach and Apple trees for fruit, Utah serviceberry (Amelanchier utahensis) and New Mexico olive (Forestiera pubescens) to feed songbirds, and Bigtooth maple (Acer grandidentatum) for shade and fall color. Thanks to the New Mexico Native Plants Society, Plants of the Southwest, Osuna Nursery, Hilltop Landscaping, the American Penstemon Society, and the ABQ Backyard Refuge Program, I found plenty of resources and support to select appropriate, drought-tolerant plants for my yard and begin to create habitat for wildlife.

Habronattus festus jumping spider

Watching the Grass Grow

At the beginning of the project, I typically saw common city birds, lizards, bumblebees, rock squirrels, paper wasps, and not much else. It takes a while for new plants to get established and for neighborhood critters to (re)discover my yard. It’s all worth it now for moments like watching an American Robin eat serviceberries, a longhorn bee sleeping on a sunflower, or munching on a fresh apple that I grew.

Large-tailed Aphideater (Eupeodes volucris hoverfly) on Arugula

When I started, I was familiar with common pollinators, like honeybees and hummingbirds, but there were so many branches of the Animal kingdom of which I wasn’t aware. (I’m doing a little better now and I hope you’ll scroll through some of our visual guides Insects – Pollinator Web.) By slowing down and observing with purpose, I find something new in the garden almost every day. It is both fun and frustrating to follow a little bee on her journey to collect pollen as I struggle to get clear pictures for identification.

Tripartite Sweat Bee on Scorpionweed (Halictus tripartitus on Phacelia integrifolia)

By The Numbers

Honestly, I have been blown away by the diversity that can exist in 0.2-acres of land. We tend to think of deserts as arid and empty; in reality, Arizona and New Mexico combined have over 1,000 species of native bees plus more than 300 species of butterflies! I have recorded more than 600 yard species in the last 12 months, using iNaturalist. They include:

  • >100 species of cultivated plants, including 20 varieties of native trees and shrubs
  • 75 bees
  • 59 butterflies and moths
  • 59 birds
  • 58 flies
  • 50 ‘true bugs’ (Hemiptera)
  • 47 volunteer plant species (“weeds” and wildflowers introduced by wind or animals)
  • 45 wasps
  • 37 beetles
  • 21 spiders
  • 12 crickets, grasshoppers, and katydids
  • 11 ants
  • New Mexico Whiptails and Southwestern Fence lizards
  • Flame Skimmer and Blue-fronted Dancer (dragonflies)
  • 2 springtails
  • 1 mayfly!
An unexpected mayfly showed up as I was leaving for work last year

Closing Thoughts

Imagine what we can do working together in our communities by planting yards full of flowers, instead of spraying chemicals and mowing lawns.

Every square inch of planet earth has ecological significance, even where we live, work, and play. If we landscape these areas with plant function as well as aesthetics in mind, we can create viable habitat where humans are, not just where humans are not … Today’s environmental challenges are so enormous that it is easy to feel helpless, as if one person can’t make a difference – despite the cliché that suggests you can. In this case, however, the cliché is right on: by choosing ecologically-effective plants for your landscape, by shrinking your lawn, and by removing your invasive ornamentals – all actions a single person can take – you will be able to make a difference that you can see, and enjoy, almost immediately. Life will return to your property!

Quote from Doug Tallamy
Lewis’ Soldier Beetles were abundant in fall 2021 on snakeweed, goldenweed, and Chamisa

Glamorous Moths #4 – Southern Flannel Moth

Wide ranging across the southern USA and northern Mexico, the Southern Flannel moth, Megalopyge opercularis, is this week’s featured moth. Read more here, if you’re interested: Megalopyge opercularis (ufl.edu). Flannel moths are in Superfamily Zygaenoidea with Jewel Caterpillar moths, like Dalcerides.

Male Megalopyge opercularis by Judy Aschner on iNaturalist.org

It’s larval food plants are mostly oak trees and some Manzanita species in Arizona and Mexico. The caterpillar is small and hairy like adults and it would be really cool to find one in the wild, so please let us know if you see any!

Southern Flannel caterpillar by Diana Foreman on iNaturalist.org

Glamorous Moths #3 – ‘Colorado’ Yucca Moth

This is the third post in a semi-regular series of interesting, colorful, and unique moths of Arizona and New Mexico. Today, I’d like to introduce you to yucca moths.

Prodoxus coloradensis © BJ Stacey on iNaturalist.org

Yucca moths are in the Family Prodoxidae and found across the USA and Mexico. They are a spring and summer moth, timing their flights with blooms of different plants in the Agave family (Asparagaceae). Prodoxus coloradensis is found from southern California to West Texas and north along the front range of Colorado. It’s black stripes are a bold contrast to many plain, white yucca moth species.

Yucca moth caterpillar © Bill Harms on iNaturalist.org

Like all desert blooms, Joshua trees depend on just the perfect conditions: well-timed rains, and for the Joshua tree, a crisp winter freeze. Researchers believe that freezing temperatures may damage the growing end of a branch and stimulate flowering, followed by branching. You may notice some Joshua trees grow like straight stalks; these trees have never bloomed—which is why they are branchless! In addition to ideal weather, the pollination of flowers requires a visit from the yucca moth. The moth collects pollen while laying her eggs inside the flower ovary. As seeds develop and mature, the eggs hatch into larvae, which feed on the seeds. The tree relies on the moth for pollination and the moth relies on the tree for a few seeds for her young—a happy symbiosis. 

Source: https://www.nps.gov/jotr/learn/nature/jtrees.htm

Glamorous Moths #2 – White-lined Sphinx

This is the second post in a semi-regular series of interesting, colorful, and unique moths of Arizona and New Mexico. Today’s inspiration comes from a brief encounter last Friday. I was at an orchard and a White-lined sphinx moth (Hyles lineata), was getting nectar from plum flowers mid-afternoon.

Hyles lineata visiting Lantana in Phoenix © George Roark

These strong fliers are members of Family Sphingidae – the sphinx, hawk, and hummingbird moths. They are active at dusk (occasionally daytime) and can hover like hummingbirds instead of landing on flowers.

“Hornworm” caterpillar of Hyles lineata © Kevin Faccenda on iNaturalist.org

This insect has a wide host range. Some of the plants utilized as host plants in the Midwest include apple, evening primrose (Oenothera spp.), four-o’clocks (the common annual Mirabilis jalapa and wild four-o’clock, M. nyctaginea), fuchsia, Gaura lindheimeri, grape, pentas, purslane, tomato, and willow-weed (Epilobium). Other native plants are used elsewhere, such as sand verbena (Abronia umbellate), wishbone plant (Mirabilis californica and other species of Mirabilis), and brown-eyed evening primrose (Camissonia claviformis ssp. piersonii) in the desert Southwest and toothed spurge (Euphorbia dentate) in Texas.

Source: https://hort.extension.wisc.edu/articles/white-lined-sphinx-moth-hyles-lineata/

Glamorous Moths #1 – Dalcerides ingenita

This is the first post in a new, semi-regular series of interesting, colorful, and unique moths of Arizona and New Mexico. The first post is inspired by Ronald Parry’s talk I saw on Zoom last week (recording here on Youtube). In the USA, the label “moths” represent over 90% of all Lepidoptera species, but butterflies get most of the attention. We can save the Monarchs and appreciate/support their overlooked “cousins” too!

Dalcerides ingenita caught in Gila National Forest, NM © Ronald Parry

Dalcerides ingenita (no common name yet) is the only species in the moth family Dalceridae that makes it north of the USA-Mexico border. The caterpillars are covered in a gelatinous material to deter parasites and predators. The larval host plants are manzanita and native Emory’s and Blue oaks.

Species Spotlight – Sandia Hairstreak and Beargrass

March 13, 2022. New Mexico’s state insect, the Sandia Hairstreak butterfly, is flying again in the foothills of the Sandia Mountains in Albuquerque.

RangeCallophrys mcfarlandi was discovered in New Mexico, a state that still encompasses nearly all of its US range. It also occurs in West Texas and south into Mexico. 

Life History. Larvae have a very restricted diet, eating only flowers and developing seeds of Texas and Woodland beargrass (Nolina texana and Nolina greenei). The similar Nolina microcarpa is widespread in New Mexico and Arizona, but it blooms in late in summer, which apparently is a deal-killer.

Left: old flower stalk of Nolina greenei; Right: hillside teeming with Beargrass

The host Beargrass species are not easy to find at nurseries, but this plant grows easily from seed. I bought seed from alplains.com and they germinated indoors before I transplanted outside in very sunny spots. Another option is to sustainably collect a small number of seeds from wild plants you encounter. They are ripe by mid-summer when the color is coppery. (Warning, they grow slowly, like related Agaves and Yuccas.)

Source for Range and Life History: Butterflies of New Mexico: The Gossamerwings II: The Hairstreaks (Lycaenidae: Theclinae) – Pajarito Environmental Education Center (peecnature.org)

Bumblebees of the Southwest

Yesterday, I posted about an opportunity for public participation in a bee and plant survey. Today, I want to share the 5 most common bumblebees in Arizona and New Mexico, according to iNaturalist.

American Bumblebee: Despite being on the verge of the endangered species list, it is the most common to see in our area. Females, especially queens, are large and have the most black bands on their backs of any species here.

Bombus pensylvanicus sharing Common sunflower with Svastra obliqua (longhorn bee) in Albuquerque

Sonoran Bumblebee is a close relative of the American and can be hard to tell apart. You are more likely to see them outside in the low desert around Tucson, Phoenix, and Las Cruces.

Picture © danabutters on iNaturalist.org

Morrison’s Bumblebee is the third most common of the large, black and yellow bumbles and closely related to the Nevada Bumblebee (6th most common). This species is almost entirely yellow and its conservation status is Vulnerable.

Bombus morrisoni enjoying a Prairie sunflower in author’s garden

Now we get to the smaller, red-belted species. First up is Hunt’s Bumblebee, which “is a striking species, consistently marked with deep colors except in faded individuals.”

Picture © Tom Kennedy on iNaturalist.org

The Great Basin Bumblebee is number 5 in our area. This species also has yellow hairs on its face, but a different pattern of black, yellow, and red than Hunt’s, with red and black hair bands touching on the abdomen.

Picture © Jessee J. Smith on iNaturalist.org

Please check out Bumble Bee Watch and Xerces Society for more information.

For more species and identification tips, The Bumble Bees of Colorado is the best guide around.

Ask a Bumblebee

Source:  Bee Inventory and Monitoring Lab (BIML) | Facebook

USGS/FWS Native Bee Lab have developed a simple Plant/Bumble Bee Survey that permits anyone to survey what plants Bumble Bees use anywhere there are Bumble Bees (literally). Our goal is to quantify which plants bumble bees use, rank them by that use, and also identify which ones they don’t use. 

We call it “Ask a Bumble Bee.”

How can I get involved? Just email <bumblebeecount@gmail.com> 

American Bumblebee, Bombus pensylvanicus

Details:

  • You don’t need to identify bumble bee species (though our goal is to get you there)
  • Everything is non-lethal 
  • You only need a cellphone (for taking pictures of plants), pencil, paper
  • You can survey any location where bumble bees occur
  • Your garden, arboretums, parks, plantings, natural areas, refuges, urban, suburban, farm, wilderness, roadsides, and weedy patches are all places we would like you to survey. The richer the plant diversity, the more plants are competing for bumble bees and clearer preference will be.
  • You can survey a site repeatedly throughout the year. 

Basic instructions:

  1. Take a half-hour walk on whatever path you like 
  2. Take notes about all the blooming plants to 10 feet on either side of that path 
  3. Count all the bees along this route and note what flowers are they on 
  4. Take pictures of all the flowering species (so we can check ids later. Note: iNaturalist.org and apps are great for insect and plant ID.) 
  5. Take pictures of your field sheets and upload all the pictures using your phone (no apps to download!) 
  6. Done (but we want you to do more than one really) 

Landscaping for Pollinator Diversity – From Southwest Yard & Garden Blog

Are all bees beneficial?

“For the most part, yes. Wild bees and honey bees need pollen and nectar to survive and establish their nests. Some bees can become pests when they build nests in areas where humans (or animals) live and play, but even those bees offer benefits as pollinators. Many bees look for open cavities or cracks in trees and walls where they can build their nests. To prevent bees from being pests in structures, patch holes or use screening. “

To read more, visit: https://nmsudesertblooms.blogspot.com/2021/03/landscaping-for-pollinator-diversity.html

What should I plant for the most pollinators?

As much as possible! Okay, that’s not much of an answer.

First, which kinds of pollinators do you want to attract?

Hummingbirdsred tubular Penstemon and Acanthus flowers work great.

Beessunflowers are your best bet.

Butterflies and moths aren’t so picky, but you’ll want to provide host plants, like milkweed for Monarchs.

Left: Male longhorn bees (genus Melissodes) shelter overnight on sunflowers (Helianthus)

Right: Spiny goldenweed (Xanthisma spinulosum) volunteers in author’s yard

Where can I buy these plants? Check out our new page here: pollinatorweb.com/host-plants/native-plant-nurseries/

Also, don’t kill all the “weeds” in your yard. Many native plants are dispersed by wind and birds and will grow on their own if given a chance.