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Sunflower Russian Mammoth

Flower

Helianthus annuus 'Russian Mammoth'

Overview
The giant of the sunflower world, this heirloom variety produces enormous flower heads up to 12 inches across on towering 10-foot stalks. Not only spectacular for garden displays and cut flowers, but also produces abundant large seeds perfect for snacking or feeding birds. A true showstopper that creates instant impact in any garden space.
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 18" apart. Germination: 7-10.
Pests & diseases
Common pests: Birds, squirrels, sunflower beetles, aphids. Common diseases: Downy mildew, rust, bacterial wilt, sclerotinia head rot.