Photos are representative and may not match your specific variety.

Sunflower Mammoth

Flower

Helianthus annuus 'Mammoth'

Overview
The classic giant sunflower that creates stunning 12-inch flower heads on towering 12-foot stalks, making it perfect for creating natural privacy screens or dramatic garden backdrops. Children and adults alike are amazed by these impressive blooms that follow the sun throughout the day and produce abundant seeds for wildlife or roasting. This heirloom variety has been delighting gardeners since the 1800s with its reliable performance and impressive size.
Planting
Direct sow after last frost when soil temperature reaches 50°F. Plant seeds 1 inch deep.
Growing
Sun: full. Water: moderate. Soil pH: 6–7.5. Space plants 12" apart. Germination: 7-10.
Pests & diseases
Common pests: Birds, squirrels, sunflower beetles, cutworms. Common diseases: Downy mildew, rust, head rot.