Large-flowered tickseed
Coreopsis grandiflora Hogg ex Sweet
- light
- Part sun
- water
- Little
- tall
- 61 cm
- wide
- 61 cm
Asteraceae
Also called Large-flowered coreopsis, Tickseed, Tickseed sun up, Sun up tickseed, Largeflower tickseed
Formerly Bidens sweetiana
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
- E. Canada to U.S.A.Kew's checklist, not yet checked
- Light
- Part shade (3 to 6 h)Read from NC State Extension, one source
- Height
- 30 cm to 91 cmRead from NC State Extension, one source
- Spread
- 30 cm to 91 cmRead from NC State Extension, one source
- Water
- Little: takes droughtRead from NC State Extension, one source
- Flowers
- YellowRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources
- Coldest it survives
- -34.4 °C (USDA zone 4a)Read from NC State Extension, one source
Not known yet: heat, hottest it survives.
In other languages (12)
- root
- CORGRA
- German
- Großblumiges Mädchenauge
- Spanish
- Chispa
- Finnish
- isokaunosilmä
- Czech
- krásnoočko velkokvěté
- Japanese
- ホソバハルシャギク
- Russian
- Кореопсис крупноцветковый
- Swedish
- flicköga
- French
- Coréopsis à grandes fleurs
- Chinese (China)
- 大花金鸡菊
- Polish
- Nachyłek wielkokwiatowy
- Hungarian
- Nagyfészkű szépecske
Where this comes from
- iNaturalist, read 2026-10-26, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, Public domain
- iNaturalist, read 2026-10-26, CC0
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY
- 3D model: Coreopsis grandiflora (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.