Desert Willow

Chilopsis linearis, commonly called desert willow, is a rapid-growing deciduous small tree or large shrub with an open crown and narrow green leaves. Fragrant trumpet-shaped flowers appear over a long warm-season display, with pink, lavender, or white color forms across the species. ## Form and mature size The [USDA Natural Resources Conservation Service plant guide](https://plants.usda.gov/DocumentLibrary/plantguide/pdf/pg_chli2.pdf) describes a spreading shrub or small tree and reports heights from about 16 feet on the Great Plains to as much as 40 feet in the Southwest, with a spread of 15–25 feet. [North Carolina State Extension](https://plants.ces.ncsu.edu/plants/chilopsis-linearis/) lists 15–25 feet tall and 10–15 feet wide, while [UC Davis Arboretum](https://arboretum.ucdavis.edu/all-stars/chilopsis-linearis) lists 15–30 feet tall and 12–15 feet wide. These regional and source differences show how much site and growing conditions can affect the crown. ## Siting and bloom Choose full sun and well-drained soil; the species also tolerates light shade. North Carolina State Extension lists USDA zones 7–11 and bloom in spring, summer, and fall. Plant near a patio or seating area to enjoy the fragrant flowers and light shade, while leaving room for the naturally open branching. ## Maintenance Water deeply during establishment, then adjust irrigation to local soil and climate. The [UC Davis profile](https://arboretum.ucdavis.edu/all-stars/chilopsis-linearis) recommends low irrigation after establishment and pruning to shape; North Carolina State Extension notes that pruning during dormancy encourages branching and flowering on new growth.