Persian Buttercup

Ranunculus asiaticus L.

light
Full sun
water
Medium
tall
46 cm
wide
46 cm

Ranunculaceae

Also called Turban Buttercup

Formerly Cyprianthe anemonoides, Cyprianthe asiatica, Ranunculus africanus, Ranunculus flammipetalus, and 2 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.

PetsNC State Extension lists it as toxic to dogs, cats and horses (25 Oct 2026)
PeopleNC State Extension lists it as mildly poisonous (bark, flowers, fruits, leaves, roots, sap, stems) (25 Oct 2026)

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
Tuberous geophyteKew's checklist, not yet checked
Climate
SubtropicalKew's checklist, not yet checked
Wild in
S. Aegean Is. to W. & SW. IranKew's checklist, not yet checked
Light
Full sun (6 h or more)Read from NC State Extension, one source
Height
46 cmRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension 1–2 ft; Wikipedia 45–45 cm
Spread
30 cm to 61 cmRead from NC State Extension, one source
Water
Average: moist, well drainedRead from NC State Extension, one source
Flowers
White, yellow, red, pinkRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension blue, brown, cream, orange, pink, purple, red, white, yellow; Wikipedia pink, red, white, yellow
Coldest it survives
-11.1 °C (USDA zone 8a)Read from NC State Extension and Wikipedia, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: NC State Extension -12.2 °C; Wikipedia -10 °C

Not known yet: heat, hottest it survives.

In other languages (12)

Hebrew
נורית אסיה
French
Renoncule des fleuristes
Dutch
Ranonkel, Tuinranonkel
Czech
pryskyřník asijský
Arabic
حوذان فارسي, حوذان آسيوي
Japanese
ハナキツネノボタン, ハナキンポウゲ
Chinese (China)
花毛茛
Chinese
陸蓮花, 花毛茛
Slovenian
perzijska zlatica, azijska zlatica
Russian
Лютик азиатский
Danish
haveranunkel
German
Asiatischer Hahnenfuß

Where this comes from

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.