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Sunflower Seeds - Mammoth Grey Stripe - Sow True Seed
Sunflower Seeds - Mammoth Grey Stripe - Sow True Seed

Sunflower Seeds - Mammoth Grey Stripe

$3.25

Helianthus annuus

Long-blooming, large-headed, archetypal giant sunflower. Easy-to-grow. Sturdy six-12' stalks with big yellow-petaled flowers. Often grown for their meaty seeds, good for roasting or bird seed. 

Direct seed or transplant into the garden after all danger of frost has passed. Sunflowers will need full sun and well-draining soil. Water well to ensure good germination. Once germinated, sunflowers will need at least an inch of water per week. Typically grown for flowers. Annual.

Minimum Seeds per Packet: 18

Packet Weight: 1g

Planting Season: After Last Frost

Sowing Method: Direct Seed or Transplant

Seed Depth: 1”

Direct Seed Spacing: 4-6"

Soil Temperature: 65-85℉

Days to Sprout: 5-12

Mature Spacing: 8-12"

Sun Requirement: Full Sun

Frost Tolerance: Frost Sensitive

Days to Harvest: 90-100

Production Cycle: Annual

Site Selection

Sunflower is a frost sensitive annual that prefers full sun and well-drained soil with low to moderate moisture. Drought tolerant once established.

Planting

Direct seed outdoors once the danger of frost has passed. Optimum soil temperature for germination is 65-85˚F. Sow 1" deep and 4-6" apart. Seeds will sprout in 5-12 days. Thin so mature plants are 8-10" apart.

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Sunflower Seeds - Mammoth Grey Stripe

$3.25

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