Sunflower (Mammoth)

Botanical Interests Mammoth Sunflower Seeds

This giant among sunflowers is a fast grower whose single stalk can reach 12 inches tall and produces one 10"-12" flower! Not fussy about soil, it's very easy to grow and drought tolerant. Grow in a tight row to make an attractive screen. Sow monthly for continual blooms into the fall. Edible, gray-striped seeds invite birds in the fall (if you don't eat the seeds first!). Edible, bittersweet petals make a sunny garnish on salads and appetizer plates. Attracts pollinators. 

Sowing Information:

• Light: Full sun
• When to Start Inside: 2 to 4 weeks before your average last frost date. Sunflowers are sensitive to root disturbance, sow in biodegradable pots that can be planted directly in the ground.
• When to Sow Outside: RECOMMENDED. 1 to 2 weeks before your average last frost date.
• Seed Depth: Plant 1/4 to 1/2 inches deep
• Seed Spacing: A group of 3 seeds every 24”
• Thinning: When 3" tall, thin to 1 every 24"
• Bloom Period: Summer

Growing Notes:

• Variety info: Flowers up to 12 inches wide with yellow petals and a brown center. Single type.
• Harvesting: For the longest vase life, harvest in the morning.
• Attributes: Attracts pollinators, good cut flower, deer resistant, heat tolerant, edible