Scientific Name
Helianthus maximilianii
Files
Download Seed: Achenes of this sunflower are blackish brown and speckled in appearance, 3-4 mm long. (64 KB)
Download Seedling: Sunflower seedling grown in research greenhouse at SDSU. (52 KB)
Download Vegetative: Leaves are 5-15 cm long. (98 KB)
Download Flowering: The flower rays can be up to 4 cm long. (64 KB)
Download Fruiting: Sunflower beginning to fruit in September near Brookings, S.D. (74 KB)
Download Dormant: Sunflower in late fall after it has set seed and become dormant. (64 KB)
Family Name
Asteraceae
Common Name
Maximilian sunflower
Horticulture Notes
Seed Collection: Collect seed in late summer
Germination: No pretreatment needed
Vegetative Propagation:
Soils: Tolerates most soil types
Light: Full sun
Water: Dry to moist
Notes: