Mammoth Grey Stripe Sunflower Seeds
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Mammoth Grey Stripe Sunflower Seeds
Mammoth Grey Stripe Sunflower Seeds
Regular price
$4.45 USD
Regular price
Sale price
$4.45 USD
Shipping calculated at checkout.
Packet Size: 205 Seeds
Quantity
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Mammoth Grey Stripe sunflowers deliver towering, iconic garden drama with massive 12-inch golden blooms that rise on sturdy stalks reaching up to 9–12 feet tall. These fast-growing annuals are known for exceptional vigor, impressive resilience, and abundant seed production that attracts birds and pollinators throughout the season. Their large grey-striped seeds can be enjoyed roasted or left in the heads to support backyard wildlife well into fall.
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Growing Information
Planting
- Plant Mammoth Grey Stripe sunflower seeds directly outdoors after frost when soil temperatures are consistently warm.
- Choose a site with full sun exposure to ensure rapid, vigorous growth and large 12-inch flower heads.
- Space seeds 12–18 inches apart to allow the plants’ broad foliage and tall stalks ample room to develop.
- Expect germination within 7–10 days and a growing period of 90–110 days to maturity.
- Provide loose, well-drained soil so the roots can anchor the tall plants securely as they reach mature height.
Maintenance
- Support may be needed for plants grown in windy areas due to their mature height of 9–12 feet.
- Water deeply but infrequently to encourage strong root development and sturdy stalks.
- Remove spent blooms only if you do not wish for birds to forage on developing seeds.
- Mulch around the base to help conserve moisture and limit weed competition.