Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: decapetalus (dek-uh-PET-uh-lus) (Info)
 3 members have or want this plant for trade.
Category:
Perennials
Height:
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing:
15-18 in. (38-45 cm)
Hardiness:
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure:
Full Sun
Danger:
Unknown - Tell us
Bloom Color:
Bright Yellow
Bloom Time:
Late Summer/Early Fall
Mid Fall
Foliage:
Herbaceous
Other details:
Average Water Needs; Water regularly; do not overwater
Soil pH requirements:
Unknown - Tell us
Patent Information:
Non-patented
Propagation Methods:
Unknown - Tell us
Seed Collecting:
Unknown - Tell us
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