
Photos are representative and may not match your specific variety.
Full Sun Improved
FlowerHelianthus annuus
- Full sun
- Zones 2–11
- 65 days to maturity
- Flowers
- 18" spacing
- Moderate water
- Annual
Overview
4-6" blooms with the classic sunflower coloration - golden petals and a dark brown disk. Best for winter production in the South as the plants are much taller in the summer. Pollenless and day neutral. Single stem.
Planting
Direct sow ½–1 inch deep after last frost date, or start indoors 4–6 weeks before transplant time in individual pots
Growing
Sun: full. Water: moderate. Soil: Well-draining loam; sunflowers are adaptable but avoid waterlogged soils. Space plants 18" apart. Germination: 7-10 days.
Pests & diseases
Common pests: Sunflower beetles, stem borers, cutworms, spider mites in dry conditions. Common diseases: Powdery mildew, stem rot (in waterlogged soil), fusarium wilt in heavy-textured soils.