Giant Sunflower
Plant·Helianthus giganteus
Full sun
Sun
Medium
Water
Moist soil
Drainage
Zones 3–9
Hardiness
Giant Sunflower (Helianthus giganteus) is a plant.
Data under review — our AI flagged a concern with this entry. Full details will return once verified.
Through the year
FruitingLeafing outDormantDying backFlowering
Works well with
from wiki dataNo companions recorded.
Where this comes from
Parsed11 Sept 2026
ConfidenceNot recorded