arroyo willow
Salix lasiolepis · Salicaceae
arroyo willow (Salix lasiolepis) is a perennial tree in the Salicaceae family. It is native to North America. USDA records it as hardy in zone 7 and warmer, down to about 7°F.
At a glance
| Type | tree Derived |
|---|---|
| Lifecycle | perennial USDA |
| Native status | native USDA |
| Mature height | 35 ft USDA |
| Light | full-sun USDA |
| Water need | high USDA |
| Growth rate | moderate USDA |
| Soil pH | 5.5–7.5 USDA |
| Hardiness zones | 7 and warmer USDA |
| Guild layer | understory Derived |
| Nursery availability | Routinely Available USDA |
USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.
Growing conditions
It needs full sun. USDA rates it as having needs consistently moist ground. Its drought tolerance is rated none — it needs reliable moisture. It tolerates saturated, poorly drained ground well (USDA rates its anaerobic tolerance high). It is recorded on soils from pH 5.5 to 7.5 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 7.
Size and growth
At maturity it reaches about 35 ft, making it a substantial woody plant. It grows at a moderate rate.
Foliage, flower and season
Summer foliage is green, coarse in texture. Its flowers are not conspicuous — a plant for form and foliage. Its active growth period is spring and summer. Its winter foliage is dense, which makes it useful for year-round screening. USDA rates its lifespan as moderate.
What the site needs to provide
USDA records it across sites receiving 35 to 60 inches of annual precipitation. It needs at least 185 frost-free days to finish its season. It roots to at least 26 inches. Fertility requirement: medium.
Propagating it
Propagate it from cuttings, bare root and container stock. It spreads vegetatively at a slow rate.
Resilience and wildlife
Browsing animals rate it barely palatable — the sourced basis for calling it deer-resistant. Its fire tolerance is rated high, and it can resprout after damage. Its growth form is recorded as multiple stem.
Role in a guild
Understory. In a layered planting this is the layer beneath the canopy, tall enough to hold structure but shaded from above. The layer is derived by a fixed rule from growth habit and mature height.
Tags
Related plants
Others in Salix
- feltleaf willow Salix alaxensis
- white willow Salix alba
- peachleaf willow Salix amygdaloides
- littletree willow Salix arbusculoides
Similar role and hardiness
- giant reed Arundo donax
- yaupon Ilex vomitoria
- Japanese cheesewood Pittosporum tobira
- Cape cheesewood Pittosporum viridiflorum
Where this data comes from
Every value on this page comes from the USDA PLANTS database record for symbol SALA6, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.
- Quoted from USDA PLANTS: active growth period, browse palatability, cold stratification, Drought tolerance, fall conspicuous, fertility requirement, fire tolerance, flower conspicuous, foliage color, foliage porosity winter, foliage texture, frost free days min, fruit conspicuous, growth form, Growth rate, Hardiness zones, Lifecycle, lifespan, Light, Mature height, Minimum temperature, Native status, Nitrogen fixation, Nursery availability, precipitation max in, precipitation min in, propagation, resprout ability, root depth in, Soil pH, Soil pH (upper), Tolerance of wet soil, Toxicity, vegetative spread rate, Water need.
- Derived by a fixed rule from those columns: Guild layer, Type.
Read our full data sources and methodology.
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