Humboldt's willow

Salix humboldtiana Willd.

Family: Salicaceae

Pet & Human Safety

People: No hazard foundPets: Not on the ASPCA lists as we read them

Hazardous parts

Not yet checked.

Preparation

n/a

Hazard type

Not yet checked.

Hazard route

Not stated by our sources (not a clearance). Detail: no hazard statement on the page

How complete this information is

We have not researched the safety of this plant yet.

Toxic to pets

No ASPCA entry found.

ASPCA index has no Salix humboldtiana page. Do not treat as pet-safe.

PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

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Care

Hardiness zones: Not checked yet
Light: direct sun (Celaya planting table).
Water needs: high; Celaya municipal planting schedule (a weak source for plant needs): water daily while establishing, then daily. high is a plain-language reading of CONAFOR: grows on riverbanks, stream and irrigation-canal edges and in sites flooded periodically by fresh water; sensitive to drought. Finger-test two inches down.
Mature size: MX: CONAFOR: up to 25 m (about 82 ft) tall and 60 cm trunk diameter; fast growth; MX Celaya table: Celaya planting table: 5.0 m to 12.0 m tall, crown 5.0 m

Soil & Drainage

Pruning & Flush Rhythm

Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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