Penstemon spp
Also known as Beardtongues, there are over 50 wild species in Arizona and New Mexico. With graceful floral spikes in a wide range of colors, drought tolerant and low maintenance, penstemons are a beloved garden plant.

Flowers: J F M A M J J A S O N D (varies slightly by species)
Status: Native
Origin: Varies
Family: Scrophulariaceae
Size: Varies
Sun: Full, but prefer protection from afternoon summer sun
Watering: Low, but active growing season is winter so supplement if lack of rain
Growth Rate: Moderate
Soil: Prefer good drainage
Temperature: Tolerant, Hardy to about 20 F
Pruning:
Disease and Pests: Root rot if soil is poorly drained, Powdery mildew if grown in too much shade
Uses: Nectar plant, Hummingbird attracter
Notes: Red and Pink flowers are favorites of Hummingbirds; White, Blue and Purple are native bee favorites. The name Beardtongue originated because many species have a staminode protruding from the flower that looks like a hairy tongue, and the upper and lower petals look like lips. Penstemon tend to be short lived perennials (2-5 years), but many reseed in the garden.
Resources
More on PollinatorWeb: every plant page A–Z · recommended plants for the low desert · which butterflies and moths each plant hosts
Gardens and Landscapes: Transform your garden into a gallery of personalized narratives, providing valuable information to both seasoned gardeners and curious visitors.
Public Spaces and Parks: Enhance the educational aspect of public spaces by introducing engraved tags. Create interactive learning experiences that engage and inform visitors about the diverse flora and fauna in the area.
Commercial Landscapes: For businesses looking to add a touch of sophistication to their outdoor spaces, and to communicate your commitment to nature.
Nature Reserves and Conservation Areas: Support conservation efforts by providing informative markers in nature reserves. Raise awareness about the importance of biodiversity and conservation.
Educational Institutions: Create interactive outdoor classrooms by incorporating these tags into educational institutions. Foster a love for nature and a thirst for knowledge among students of all ages.
I engrave these by hand in Phoenix, Arizona — acrylic stakes for beds and borders, aluminum tags for the harshest conditions, and hanging tags for grafted trees. See the full range at Cactus Shack Studio →

