Giant goldenrod
Solidago gigantea Aiton
- light
- Full sun
- water
- Medium
- tall
- 2.0 m
- wide
- 1.2 m
Asteraceae
Also called Tall goldenrod, Smooth goldenrod, Early goldenrod, Turtle Mountain goldenrod
Formerly Doria dumerorum, Doria pitcheri, Solidago cleliae, Solidago deflexa, and 8 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
- Canada to NE. MexicoKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from RHS, one source
- Height
- 1.5 m to 2.5 mRead from RHS, one source
- Spread
- 99 cm to 1.5 mRead from RHS, one source
- Water
- Average: moist, well drainedRead from RHS, one source
- Flowers
- YellowRead from RHS and Wikipedia, checked by a majority of its sourcesBacked by both sources
- Coldest it survives
- -20 °C (USDA zone 6b)Read from RHS, one source
Not known yet: heat, hottest it survives.
In other languages (12)
- root
- SOLGIG
- French
- verge d'or géante, Solidage géant, solidage glabre
- Italian
- pioggia d'oro maggiore
- German
- Riesen-Goldrute
- Czech
- zlatobýl obrovský
- Danish
- Sildig gyldenris
- Russian
- Золотарник гигантский, Золотарник поздний
- Norwegian Bokmål
- kjempegullris
- Lithuanian
- Didžioji rykštenė, Vėlyvoji rykštenė
- Finnish
- isopiisku
- Polish
- Nawłoć późna
- Dutch
- Late guldenroede, late guldenroede
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- 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
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Solidago gigantea (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.