Photos are representative and may not match your specific variety.
Starburst™ Greenburst DMR
Flower
FlowerHelianthus annuus
- Full sun
- Zones 2–11
- 60 days to maturity
- Flowers
- 18" spacing
- Moderate water
- Annual
Overview
Golden-yellow petals surround green centers. 4-6" blooms on 12-24" stems. Downy mildew-resistant plants have a sturdy, branching habit. Pollenless. NOTE: Downy mildew in sunflowers persists in infected soils and is especially problematic in cool, wet soils. Symptoms include damping-off, stunted plants, yellowing leaves, and the presence of downy, white mildew on the undersides of the leaves.
Planting
Direct sow after last frost when soil temperature reaches 50°F or warmer
Growing
Sun: full. Water: moderate. Soil: Well-drained loam. Space plants 18" apart. Germination: 7-14 days.
Pests & diseases
Common pests: Sunflower beetles, painted lady caterpillars, sunflower maggots, spider mites. Common diseases: Downy mildew (resistant), rust, Sclerotinia rot, Alternaria leaf spot.