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Organic Sunflower Seeds, Black Mammoth

Helianthus annuus
Regular price $3.00
Regular price Sale price $3.00
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Black Mammoth is a fast and easy growing sunflower that is sure to be a favorite. Prized for its bright yellow flowers, it produces an abundance of delicious seeds to be enjoyed. Its giant flowers are a marvelous sight as they grow up to 30 cm (12”) across on plants that reach up to 2.5-3 m (8-10’) in height!

Helianthus annuus

  • SKU: 139840
Growing Information Chevron Down Chevron Forward
Safe for bees
for Bees
Grow best in
Best In:
Full Sun
Days to germination
Days to
7 to 14 days
Growing height
Growing Height:
2.5-3 m (8-10')
Key Features Chevron Down Chevron Forward
  • Plant Type: Annual
  • Botanical Name: Helianthus annuus
  • Seed Type: Open Pollinated
  • Color: Bright yellow with brown centers
  • Harvest/Bloom Season: August to September
  • Product Weight: 4.5 grams / approximately 30-35
  • How To Grow
Instructions Chevron Down Chevron Forward
After all danger of frost, sow seeds in open ground well exposed. Cover with 1 inch of soil. When plants are 4 inches tall, thin. Needs lots of water.
  • Planting Depth: 1.3 cm (1/2")
Suggestions Chevron Down Chevron Forward
  • A very sturdy plant to use as a windbreak.

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