Douglas iris
Iris douglasiana Herb.
- light
- Full sun
- water
- Medium
- tall
- 41 cm
- wide
- 91 cm
Iridaceae
Formerly Iris beecheyana, Iris watsoniana, Limniris douglasiana
When it flowers
JFMAMJJASOND
Not known yet in the tropics: too few flowering observations to read a season from.
PetsNo pet-safety information yet
PeopleNo safety information yet
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
- Rhizomatous geophyteKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Oregon to CaliforniaKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from Roger's Gardens and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: Roger's Gardens full, part; Wikipedia full
- Height
- 41 cmRead from Roger's Gardens, one source
- Spread
- 91 cmRead from Roger's Gardens, one source
- Water
- Average: moist, well drainedRead from Roger's Gardens, one source
- Flowers
- PurpleRead from Roger's Gardens and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: Roger's Gardens purple, violet; Wikipedia blue, purple, white, yellow
- Coldest it survives
- -17.8 °C (USDA zone 7a)Read from Roger's Gardens, one source
Not known yet: heat, hottest it survives.
In other languages (1)
- Chinese
- 道格拉斯鸢尾
Where this comes from
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- Roger's Gardens, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, Public domain
- 3D model: Iris douglasiana (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.