Hardhack aka Douglas Spirea (Spiraea douglasii)

Hardhack aka Douglas Spirea (Spiraea douglasii)

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Hardhack aka Douglas Spirea (Spiraea douglasii)

Hardhack aka Douglas Spirea (Spiraea douglasii)

About this plant

Hardhack is a pioneer species in British Columbia, which means that it is one of the first plants to grow in an area after a forest fire or other disturbance. It is very hardy and can reproduce quickly through suckers. Although it is a native species, it can be problematic if it outcompetes native species which are less hardy. However, hardhack is an important plant for native pollinator species, and its seeds also provide a food source for birds and small mammals.

Sun/Soil Needs

Sun: Full Sun to Part Shade

Soil: prefers moist, boggy, and riparian habitats, its hardiness allows it to survive, and even thrive, in landscapes with drier summers. Prefers acidic, poor soils but is adaptable to various soil types.

Growth & Sizing

Height: 6–10 feet (185–305 cm)
Spread: 3–4 feet (90–120 cm)

Garden Design Tips

An excellent native plant for a rain garden because it naturally thrives in consistently moist to wet soil conditions, such as bogs, swamps, and along streambanks.

Woody, thicket-forming; best as mass/edge structure in garden designs.

grows well with: