Perennial Sunflowers - Key Growing Information

An arrangement of perennial sunflowers, a type that demands little maintenance but blooms generously.
DAYS TO GERMINATION: 14 days at 70°F (21°C).

SOWING:
Transplant: Sow 8-10 weeks before last frost. Transplant into cell packs or individual containers when the first true leaves appear. Harden off and transplant after the last frost. Direct seed: Sow after the last frost when the soil temperature is 70°F (21°C).

LIGHT PREFERENCE:
Sun.

SOIL REQUIREMENTS:
Almost any soil type.

PLANT SPACING:
18-24". Spreads rapidly and will need to be divided every third year.

HARDINESS ZONES:
Zones 3-9.

HARVEST:
Fresh: Harvest when 1/4-1/3 of the flowers on a stem are open.

USES:
Cut flower. Excellent plant for back of perennial borders. Good for naturalistic gardens and wildflower plantings.

SCIENTIFIC NAME:
Helianthus maximiliani