Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: annuus (AN-yoo-us) (Info)
Cultivar: American Giant
 One vendor has this plant for sale.
2 members have or want this plant for trade. Category:
Annuals
Height:
12-15 ft. (3.6-4.7 m)
Spacing:
24-36 in. (60-90 cm)
Hardiness:
Not Applicable
Sun Exposure:
Full Sun
Danger:
N/A
Bloom Color:
Bright Yellow
Bloom Time:
Mid Summer
Foliage:
Unknown - Tell us
Other details:
Unknown - Tell us
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information:
Non-patented
Propagation Methods:
From seed; direct sow after last frost
Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
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