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Pacific willow

Salix lucida · Salicaceae

Pacific willow (Salix lucida)
Photo: (c) Adam J. Searcy, some rights reserved (CC BY) · CC BY · via iNaturalist

Pacific willow (Salix lucida) 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

Typetree Derived
Lifecycleperennial USDA
Native statusnative USDA
Mature height53 ft USDA
Lightfull-sun USDA
Water needhigh USDA
Growth raterapid USDA
Soil pH6–7.5 USDA
BloomMarch–May USDA
Flower colorGreen USDA
Hardiness zones7 and warmer USDA
Guild layercanopy Derived
Nursery availabilityRoutinely 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 6 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 53 ft, making it a substantial woody plant. It grows quickly.

Bloom period

USDA records a bloom period of March through May. Flowers are green.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is green, medium in texture. Its flowers are not conspicuous — a plant for form and foliage. It carries conspicuous autumn colour. Its active growth period is spring and summer. USDA rates its lifespan as short, so plan on replacing or resowing it rather than treating it as permanent structure.

What the site needs to provide

USDA records it across sites receiving 45 to 60 inches of annual precipitation. It needs at least 80 frost-free days to finish its season. It roots to at least 36 inches. Fertility requirement: medium.

Propagating it

It takes readily from seed, cuttings, bare root, container stock and sprigs. Seed needs cold stratification — a period of moist chilling — before it will germinate, so sow in autumn or chill it artificially before a spring sowing. Its seed spreads at a rapid rate. It spreads vegetatively at a slow rate.

Resilience and wildlife

Browsing animals find it moderately palatable, so expect deer and rabbits to take an interest. Its fire tolerance is rated medium, and it can resprout after damage. Its growth form is recorded as thicket forming.

Role in a guild

Canopy. In a layered planting this is the tallest layer of a planting — it sets the light budget everything beneath it lives on. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

deciduouswet-tolerantclay-tolerantsandy-soilnativeediblefull-sunfast-growingcanopy

Related plants

Others in Salix

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol SALUL, 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.

Read our full data sources and methodology.

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