Mountain-grape
Mahonia pinnata
Last reviewed: September 2026

Toxicity unknown
Mountain-grape (Mahonia pinnata) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
low
Size
36"–96" H × 36"–72" W
Bloom
Feb, Mar, Apr
Native to
CA, OR
Pollinators
bees
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
An evergreen shrub with spiny holly-like compound leaves and upright clusters of bright yellow flowers in late winter and spring. Powdery blue berries follow the flowers.
Wildlife value
Early-season flowers feed bees, and the berries are eaten by birds through summer.
Common questions
- How much sun does Mountain-grape need?
- Mountain-grape grows best in part sun conditions.
- When does Mountain-grape bloom?
- Mountain-grape blooms in February, March, and April.
- Where is Mountain-grape native?
- Mountain-grape (Mahonia pinnata) is native to CA, OR, per the World Checklist of Vascular Plants (Kew).
- What pollinators does Mountain-grape attract?
- Mountain-grape draws bees.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Mountain-grape? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
Not sure where to start? Take the 2-minute yard quiz