Image of Spiraea tomentosa
Source: Steven G Johnson
image of Shrub
Spiraea tomentosa
Steeplebush
Spirée Tomenteuse

Obsolete Names

hardhack
tomentose meadowsweet
spirée rose
thé du Canada
Seeds available at table Vines, Shrubs, Trees
We currently accept seeds for this plant
Bloom colour: Pink Bloom period: Jul - Sep
Max Height: 4.0 feet
Max Width: 3.0 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Perennial plants that will that come back year after year
Gardener Experience:
beginner friendly Suitable for beginner gardeners
does not spread Does not spread uncontrollably
plant germinate easy Easy to germinate
plant self seeding Self-seeding
Landscape uses:
container suitable Suitable for container garden
school garden Suitable for school gardens
Ecological Benefits: No ecological benefits information available.
Tolerates:
Salt Tolerant Tolerates salt conditions
Deer Resistant Deer resistant
rabbit resistant Rabbit resistant
limestone Tolerant Tolerates limestone conditions
acidic soil Tolerant Tolerates acidic soil conditions
transplantation Tolerant Tolerates transplantation
Special Features and Considerations:
causes skin rashes This plant causes skin rashes

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Spiraea tomentosa
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Atlantic Maritime
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Spiraea tomentosa

  • Celastrina ladon (Spring Azure)
  • Olethreutes permundana (Raspberry Leafroller)

Specialized Bees Supported by Spiraea tomentosa

No bee data available for this plant.

Plants that grow in similar conditions, that bloom at the same time.

Complementary Plants

  • No complementary plants found.

Substitute For Non-Native Plants

  • Sorbaria sorbifolia (False spirea)
  • Aruncus Dioicus (Goat's Beard)
  • Buddleia (Butterfly Bush)
  • Hydrangea (Hydrangea)
  • Euonymus alatus (Burning Bush)
  • Hibiscus (Non-Native Hibiscus)
  • Astilbe (Astilbe)
  • Berberis (Barberry)
  • Melilotus albus) (Sweet White Clover)

Sowing Information

Download Sowing Label (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: October
  • Harvesting indicator: Pods are brown and crisp and starting to open, seeds are dark and tiny stem attaching to the main stem is brown. Seeds easily fall off pod when shaken, and little stem connecting the pod to the main stem is brown (not green)
  • Harvesting mean: Shake seed head in paper bag
  • Seed viability test: No test needed before donating
  • Packaging measure: 1 rounded 1/32 teaspoon
  • Seed storage: Air dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • At least one cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
  • No harvesting video available at this time.

Toxicity Notes

Not known to be toxic to mammals if ingested.