California wildrose
Rosa californica Cham. & Schltdl.
- light
- Sun–part
- water
- Medium
- tall
- 2.2 m
- wide
- 2.0 m
Rosaceae
Formerly Rosa aldersonii, Rosa breweri
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
- ShrubKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Oregon to Mexico (Baja California Norte)Kew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from Plants For A Future, one source
- Height
- 2.2 mRead from Wikipedia and Plants For A Future, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: Wikipedia 6–6 ft; Plants For A Future 2.5–2.5 m
- Spread
- 2.0 mRead from Plants For A Future, one source
- Water
- Average: moist, well drainedRead from Plants For A Future, one source
- Flowers
- Pink, magentaRead from Wikipedia, one source
- Coldest it survives
- -34.4 °C (USDA zone 4a)Read from Plants For A Future, one source
Not known yet: heat, hottest it survives.
In other languages (1)
- Chinese
- 加州蔷薇
Where this comes from
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- Plants For A Future, read 2026-10-26, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 2.5
- 3D model: Rosa californica (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.