Perennial Sunflowers - Key Growing Information
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 to 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
