Rose of Sharon
Hibiscus syriacus L.
- light
- Full sun
- water
- Medium
- tall
- 3.0 m
- wide
- 2.4 m
Malvaceae
Also called Common hibiscus
Formerly Althaea frutex, Hibiscus acerifolius, Hibiscus arborescens, Hibiscus chinensis, and 3 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
- Shrub or treeKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- S. China, TaiwanKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension full, part; Wikipedia full
- Height
- 2.4 m to 3.7 mRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension 8–12 ft; Wikipedia 2–4 m
- Spread
- 1.8 m to 3.0 mRead from NC State Extension, one source
- Water
- Average: moist, well drainedRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources
- Flowers
- White, red, pink, purpleRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension pink, purple, red, white, yellow; Wikipedia blue, pink, purple, red, violet, white
- Coldest it survives
- -28.9 °C (USDA zone 5a)Read from NC State Extension, one source
Not known yet: heat, hottest it survives.
In other languages (12)
- French
- Althéa
- root
- Tulipán
- Spanish
- tulipán chino, rosa de Siria, Altea
- Japanese
- ムクゲ, ムクゲ (木槿)
- Czech
- ibišek syrský
- Chinese
- 木槿, 白花单瓣木槿, 紫花重瓣木槿
- Korean
- 무궁화
- Estonian
- süüria hibisk
- Russian
- Гибискус сирийский
- Danish
- Syrisk Rose
- Portuguese
- Rosa-da-Síria
- German
- Straucheibisch, Garten-Hibiskus, Gartenhibiskus
Where this comes from
- iNaturalist, read 2026-10-24, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-24, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-28, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-24, CC BY-SA 4.0
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Hibiscus syriacus (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.