Mahonia aquifolium

Family: Genus:

Plant type:

Biomes/Growing conditions: , , , , ,

Sun exposure: , ,

USDA Hardiness zone: Zn5a -15º to -20ºF

Foliage color: ,

Foliage season:

Mahonia aquifolium

Oregon Grape, our ubiquitous state flower. This evergreen shrub can be found almost anywhere aside from the immediate coast to high Cascades west of the mountains. Its native from B.C. to Southern California. Variable shrub to on average 5′ tall and suckering as wide. In rich, happy conditions it will soar to 8′ or more and in more impoverished conditions it makes its life as a spreading low plant. In late February-April the top of the plant erupts in golden yellow incredibly fragrant flowers that are one of the first joys of spring. By late summer these flowers have transformed into clusters of dusty blue incredibly sour fruits. Often employed in the toughest situations where its performance is some what rough. It thrives in cultivation with light, consistent summer moisture. Tolerates heavy clay soils and summer drought. The pinnate leaves often take on purple/maroon tints in winter. Ours are cuttings native to our wholesale nursery site. So its a local plant. Full sun to part shade to quite a bit of shade at the expense of blooming and a lankier outline. Excellent deer resistance when established. Oregon native plant.

My Favorites

More climate-adapted plants