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Hardhack
Hardhack
Spiraea douglasii
Out of stock
Height 1–1.5m (3–5ft) Spread 1–1.5m (3–5ft)
- Weight: 1g / 0.04oz
- Product Count: -
- Growing Difficulty: Moderate
- We ship Wednesdays !
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All our seeds are 100% Canadian Grown, Processed-by-Hand, Non-GMO, Certified Organic, and Open Pollinated. From our 10-acre Seed Farm in Metchosin, BC since 2004.
Quick Notes
- Hardy native wetland shrub
- Striking spikes of dense pink-purple flowers
- Attracts pollinators, butterflies, and birds
- Excellent for erosion control and habitat restoration
- Thrives in moist to wet soils
About Hardhack
Hardhack, also known as steeplebush, is a beautiful deciduous native shrub commonly found in wetlands and moist meadows throughout coastal British Columbia. Reaching up to 1.5 metres tall, it produces upright spikes of densely packed pink to purple flowers in mid to late summer that are highly attractive to bees, butterflies, and other pollinators. Its spreading root system makes it an excellent choice for stabilizing banks and restoring wetland ecosystems. The plant also offers seasonal interest, with vibrant new growth in spring and reddish foliage in autumn.
Where Can You Grow Hardhack?
Hardhack is ideal for Zones 4–9 and prefers consistently moist soils in full sun to part shade. It thrives in rain gardens, naturalised wet areas, streambanks, and low-lying garden beds.
History and Historical Uses
Used traditionally by Indigenous peoples for its astringent properties, Hardhack was applied in infusions and poultices for medicinal purposes. Its dense flower clusters have also made it a favourite for natural bouquets and dried floral arrangements. In ecological landscaping, it remains valued for attracting pollinators and preventing soil erosion.
Canadian Zone Information
Zones 8-9: Sow directly in spring or fall in moist areas; mulch lightly to retain moisture.
Zones 5-7: Start indoors in early spring or cold stratify; transplant to wet areas after frost.
Zone 4: Needs a consistently wet site with good snow cover for winter protection.
How to Grow and Harvest Hardhack
Planting: Sow seeds in fall or cold stratify before spring sowing; plant in consistently moist soil.
Watering: Keep well-watered during establishment; thrives in waterlogged conditions.
Harvesting: Cut flowering spikes in full bloom for use in fresh or dried arrangements.
Maintenance: Prune back old stems in late winter or early spring to encourage new growth.
Seed Saving Tips for Future Supply
Collect Seeds: Harvest seed heads when dry and brown in late summer.
Clean Seeds: Gently shake or rub to remove seeds from the dry spikes.
Dry and Store: Fully dry seeds before storing in a cool, dry place.
Viability: Seeds remain viable for 2–3 years under proper conditions.
Certified Organic By
Islands Organics Producers Association (Cert#1962)

