Ferula vulgare
Ferula vulgare is a great addition to an Arizona pollinator garden, not only for its ornamental value but also for its ability to support local ecosystems. This plant is a host for the caterpillars of the black swallowtail butterfly, which feed on its foliage, making it a valuable larval host plant. In addition, Ferula vulgare produces small, yellow flowers that are attractive to a variety of native bees.
Native bees play a crucial role in pollination and ecosystem health, making it important to provide them with suitable habitat and food sources. By planting Ferula vulgare, gardeners can support both the black swallowtail butterfly and native bee populations while adding height and structure to their pollinator garden.
Flowers: June to August
Status: Non-native
Origin: Europe and Asia
Family: Apiaceae
Size: 3′ tall
Sun: Full sun to part shade
Watering: Moderate
Growth Rate: Fast
Soil: Well-draining soils with a neutral pH level
Temperature: Heat-tolerant, can withstand high temperatures but may die back in extreme cold
Pruning:
Disease and Pests:
Uses: Larval host for the Black Swallowtail. Attracts bees, butterflies, and other pollinators to the garden.
Notes: Florence Fennel and its varieties produce bulbs. Wild Fennel grows in California and has naturalized in parts of Arizona; although it has the same flavor it doesn’t have thickened stems.
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 →
