Flowering-rush
Butomus umbellatus L.
- light
- Full sun
- water
- Plenty
- tall
- 1.2 m
- wide
- 30 cm
Butomaceae
Formerly Butomus caesalpini, Butomus floridus, Butomus vulgaris
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
- HelophyteKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Temp. Eurasia to India (Punjab. Bihar), NW. AfricaKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from RHS, one source
- Height
- 99 cm to 1.5 mRead from RHS, one source
- Spread
- 10 cm to 51 cmRead from RHS, one source
- Water
- Plenty: wet or constantly moistRead from RHS and Wikipedia, checked by a majority of its sourcesBacked by both sources
- Coldest it survives
- -15 °C (USDA zone 7b)Read from RHS, one source
Not known yet: heat, hottest it survives.
Where this comes from
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- RHS, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- 3D model: Butomus umbellatus (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.