Pacific coast mahogany

Swietenia humilis Zucc.

Family: Meliaceae

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 human-hazard statement

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 Swietenia humilis 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.

Get the app: coming soon

Care

Hardiness zones: Not checked yet
Light: whole-genus nursery statement only: full sun or light shade.
Water needs: The level is a plain-language reading of the source wording cited. Always finger-test two inches down.
Mature size: USDA Forest Service, whole genus: mahogany species are large trees capable of 20 to 40 m (about 66 to 130 ft) tall depending on site and more than 2 m across the trunk; no figure for S. humilis alone

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.

Get the app: coming soon