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NPIN: Native Plant Database

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Spiraea douglasii (Hardhack spiraea)
Loughmiller, Campbell and Lynn

Spiraea douglasii

Spiraea douglasii Hook.

Hardhack spiraea, Rose spirea, Western spiraea

Rosaceae (Rose Family)

Synonym(s):

USDA Symbol: SPDO

USDA Native Status: L48 (N), AK (N), CAN (N)

A many-stemmed, fast-growing, 4-10 ft. shrub. Oblong leaves are shiny green on top and white-woolly beneath. Tiny, rose-colored, five-petaled flowers occur in dense, 4-6 in. long panicles at the tips of the stems. The panicles appear fuzzy because of the flowers’ prominent, protruding stamens.

Hardhack is a member of the family Rosaceae, which includes about 2000 species of trees, shrubs, and herbs worldwide, including serviceberries (Amelanchier), hawthorns (Crataegus), apples (Malus), plums and cherries (Prunus), and mountain-ashes (Sorbus).

 

Plant Characteristics

Duration: Perennial
Habit: Shrub
Leaf: Dark Green
Fruit:
Size Class: 6-12 ft.

Bloom Information

Bloom Color: Pink
Bloom Time: Jun , Jul , Aug , Sep

Distribution

USA: AK , CA , CO , ID , MO , MT , OR , TN , WA
Native Distribution: B.C. to n.w. MT, s. to n. CA
Native Habitat: Low, damp places below 6000 ft.

Growing Conditions

Water Use: Low
Light Requirement: Part Shade
Soil Moisture: Moist
CaCO3 Tolerance: Low
Soil Description: Moist soils.
Conditions Comments: Not Available

Benefit

Warning: Sometimes used medicinally, this plant can be poisonous in high quantities. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.
Conspicuous Flowers: yes

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Propagation

Description: Propagate by seed or softwood cuttings. Offshoots from the creeping underground stems can be readily established.
Seed Collection: Not Available
Commercially Avail: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: UPL FACW FACW UPL UPL FACW
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA
Native Seed Network - Corvallis, OR

Bibliography

Bibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.

Search More Titles in Bibliography

Additional resources

USDA: Find Spiraea douglasii in USDA Plants
FNA: Find Spiraea douglasii in the Flora of North America (if available)
Google: Search Google for Spiraea douglasii

Metadata

Record Modified: 2007-01-01
Research By: TWC Staff

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