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Photos are representative and may not match your specific variety.
Big Smile
FlowerHelianthus annuus
- Full sun
- Zones 2–11
- 50 days to maturity
- Flowers
- 12" spacing
- Moderate water
- Annual
Overview
Attractive in small beds, containers, and 4-6" pots. 3-6" blooms are bright golden-yellow with a black center. Day neutral. Branching. Bears pollen.
Planting
Start indoors 4-6 weeks before last frost and transplant after frost, or direct sow after last spring frost
Growing
Sun: full. Water: moderate. Soil: Well-draining loam; potting mix for containers. Space plants 12" apart. Germination: 7-14 days.
Pests & diseases
Common pests: Aphids, spider mites, slugs. Common diseases: Powdery mildew, downy mildew, rust.