Hardhack
Spiraea douglasii Hook.
- light
- Full sun
- water
- Medium
- tall
- 1.4 m
- wide
- —
Rosaceae
Also called Steeplebush, Douglas spirea, Hardhack steeplebush, Menzies' spirea, Rose spirea
Formerly Drimopogon douglasii
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- ShrubKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- W. Canada to W. U.S.A.Kew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from Wikipedia, one source
- Height
- 91 cm to 1.8 mRead from Wikipedia, one source
- Water
- Average: moist, well drainedRead from Wikipedia, one source
- Flowers
- PinkRead from Wikipedia, one source
Not known yet: spread, coldest it survives, heat, hottest it survives.
In other languages (8)
- Czech
- tavolník Douglasův
- German
- Douglas-Spierstrauch
- Finnish
- lännenpajuangervo, Punapajuangervo
- Upper Sorbian
- Douglasowa wjerbička
- Dutch
- douglaspluimspirea, douglasspirea, Douglasspirea
- Swedish
- Douglasspirea
- Chinese
- 道格拉斯绣线菊
- Slovenian
- douglasova medvejka
Where this comes from
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY 3.0
- 3D model: Spiraea douglasii (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.