Science · Specimen Trees

Desert Willow

A small southwestern North American tree with narrow leaves and trumpet-shaped flowers. It is not a true willow; hot sunny conditions and drainage are more important than the wet soil associated with Salix.

Chilopsis linearis · Deciduous desert flowering tree

Profile

Family: Bignoniaceae, not the willow family.
Bloom: Flowers in warm weather; long seed pods follow unless a low-seed selection is used.
Planting: Set the root flare at grade and protect the expanding root zone from compaction.
Assessment: Confirm identity, local climate suitability and drainage before prescribing care.

Water & soil targets

Moisture (VWC): Site-calibrated; varies by soil and rootstock
Salinity tolerance: Salt tolerance varies with soil and water chemistry; do not assume brackish water is safe.
Drought tolerance: High once established.

Optimal root measurement depth

6–12 in

Desert roots take quick rain near the surface; avoid overwatering deeper. Typical guidance; confirm with a soil probe on site.

Water deeply but infrequently after establishment; allow soil to dry substantially and avoid placing it in a constantly wet turf basin.

Problems to watch

Root rot in wet soils
Aphids
Cold injury on exposed young growth

Stress signs

Yellowing with wet roots
Twig dieback
Sparse flowering in excessive shade

Where you'll find it

Dry-climate flowering specimens
Pollinator-oriented gardens

More specimen trees

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All Science profiles

General agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.