Toxic Plant Pas connu comme étant toxique - Not known to be toxic to mammals if ingested.
Image of Spiraea tomentosa
Source: Steven G Johnson

Plant Names

image of Arbuste
Spiraea tomentosa
Steeplebush
Spirée Tomenteuse

Synonyms

hardhack
tomentose meadowsweet
spirée rose
thé du Canada

Plant Characteristics

Couleur de floraison: Rose Bloom Period: Jul - Sep
Hauteur max: 4,0 feet
Max Width: 3,0 feet (spreads by rhizome)
Light Condition:
Full sun Plus de 6 heures d'ensoleillement par jour
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: Vivace des plantes qui reviennent année après année
Gardener Experience:
beginner friendly Suitable for beginner gardeners
does not spread Ne se propage pas de manière incontrôlable
plant spread by rhizome Spreads by rhizome
plant germinate easy Facile à germer
plant self seeding Self-seeding
Landscape Uses:
container suitable Suitable for container garden
school garden Suitable for school gardens
Ecological Benefits:
butterfly host Butterfly host
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

Seed and plant distribution status

No seeds available for this plant.
Nous acceptions les semences de cette plante

Faits intéressants

Steeplebush has upright, narrow rosy-pink flower spikes that bloom mid to late summer. In its natural setting, Steeplebush grows in swamp, bog and fen margins, wet meadows and along stream and lake shores. It would be a useful shrub choice for shoreline plantings, and other moist native landscapes, although will tolerate average moisture in a garden setting. It is mound forming but would not be suitable for a small garden area.

Plant Location

Native to Ottawa region: Oui

Distribution according to VASCAN

Distribution: Spiraea tomentosa
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Maritime de l'Atlantique
  • Plaines à forêts mixtes

Ecological Benefits

Butterflies Supported by Spiraea tomentosa

Specialized Bees Supported by Spiraea tomentosa

No bee data available for this plant.

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 Seed Envelope Labels (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
    • Little stem connecting the pod to the main stem is brown (not green)
  • Harvesting:
    • Secouer le porte-graines dans un sac de papier
  • Seed viability test:
    • Pas de test requis avant le don
  • Packaging measure: 1 rounded 1/32 teaspoon
  • Seed storage:
    • Sécher à l'air dans un sac en papier ou contenant ouvert, pour quelques jours jusqu'à sec
    • Secouer de temps à autre pour prévenir la moisissure
  • 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.