Sunflower Facts
Botanical Name: Helianthus
Plant Type: Perennial or Annual
Bloom Time: Mid-summer to fall
Best Location: Full Sun
Soil: Well-drained, rich, deep and moist
Diseases: Crown gall, leaf spot, mildew, stem rot
Pests: Aphids, beetles
Propagation: Seeds
Zone: 5-9
Planting Sunflowers
Ground Temp: 55-60°F
PH level: 6.0-7.5
Spacing: 30 inches apart for rows, 6″ spacing
Depth: 1″
Time to Bloom: Sprouts in 7-10 days, bloom in 60-90 days
Notes: Plant in succession every 2-3 weeks.