Rhubarb
ರೂಬಾರ್ಬ್रेवतचीनीറുബാർബ്
Rheum rhabarbarum L.
- light
- Sun–part
- water
- Medium
- tall
- 1.2 m
- wide
- 1.2 m
Polygonaceae
Also called Garden rhubarb
Formerly Rheum franzenbachii, Rheum macropterum, Rheum muricatum, Rheum sanguineum, and 1 more
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
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
- PerennialKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- S. Siberia to N. & C. ChinaKew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from Royal Horticultural Society, one source
- Height
- 99 cm to 1.5 mRead from Royal Horticultural Society, one source
- Spread
- 99 cm to 1.5 mRead from Royal Horticultural Society, one source
- Water
- Average: moist, well drainedRead from Royal Horticultural Society, one source
- Flowers
- White, greenRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension green, white; Wikipedia green, red, white
- Coldest it survives
- -20 °C (USDA zone 6b)Read from Royal Horticultural Society, one source
Not known yet: heat, hottest it survives.
In other languages (12)
- root
- RHERHA, Rubarb, Долгионт гишүүнэ
- German
- Rhabarber, Gewöhnlicher Rhabarber, Gemüse-Rhabarber
- Spanish
- Ruibarbo
- Czech
- reveň kadeřavá
- Danish
- Rabarber
- Dutch
- Tuinrabarber, Gegolfde rabarber
- French
- Rhubarbe des jardins
- Norwegian Bokmål
- rabarbra
- Russian
- Ревень волнистый, Ревень обыкновенный
- Finnish
- tarharaparperi
- Swedish
- rabarber
- Chinese (China)
- 波叶大黄, 华北大黄
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- Royal Horticultural Society, read 2026-10-26, fact, cited
- NC State Extension, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Rheum rhabarbarum (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.