Name: Sunflower Mammoth Grey Striped 3 Sizes Non-GMO, Heirloom Seeds
Brand: David's Garden Seeds®
Price: 5.0 CAD
Availability: OutOfStock

Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you&

Sunflower Mammoth Grey Striped 3 Sizes Non-GMO, Heirloom Seeds

Size

25 Seeds

1000 Seeds

5000 Seeds

Price

Shipping calculated at checkout.

Quantity

Natural & Sustainable Seeds
Always Non-GMO
Veteran-Owned & Family Operated
Secure payments

[{"id":45590847717633,"title":"25 Seeds","option1":"25 Seeds","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":40557900300545,"product_id":6751083724964,"position":1,"created_at":"2023-09-20T11:52:39-05:00","updated_at":"2024-12-20T11:44:30-06:00","alt":"Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds.","width":649,"height":649,"src":"\/\/davidsgardenseeds.com\/cdn\/shop\/files\/Sunflower_Grey_Stripe.jpg?v=1734716670","variant_ids":[45590847717633,45590847750401,45590847783169]},"available":false,"name":"Sunflower Mammoth Grey Striped 3 Sizes Non-GMO, Heirloom Seeds - 25 Seeds","public_title":"25 Seeds","options":["25 Seeds"],"price":500,"weight":1,"compare_at_price":700,"inventory_management":"shopify","barcode":"645716513491","featured_media":{"alt":"Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds.","id":33159196442881,"position":1,"preview_image":{"aspect_ratio":1.0,"height":649,"width":649,"src":"\/\/davidsgardenseeds.com\/cdn\/shop\/files\/Sunflower_Grey_Stripe.jpg?v=1734716670"}},"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":45590847750401,"title":"1000 Seeds","option1":"1000 Seeds","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":40557900300545,"product_id":6751083724964,"position":1,"created_at":"2023-09-20T11:52:39-05:00","updated_at":"2024-12-20T11:44:30-06:00","alt":"Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds.","width":649,"height":649,"src":"\/\/davidsgardenseeds.com\/cdn\/shop\/files\/Sunflower_Grey_Stripe.jpg?v=1734716670","variant_ids":[45590847717633,45590847750401,45590847783169]},"available":false,"name":"Sunflower Mammoth Grey Striped 3 Sizes Non-GMO, Heirloom Seeds - 1000 Seeds","public_title":"1000 Seeds","options":["1000 Seeds"],"price":1300,"weight":680,"compare_at_price":null,"inventory_management":"shopify","barcode":"659467626287","featured_media":{"alt":"Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds.","id":33159196442881,"position":1,"preview_image":{"aspect_ratio":1.0,"height":649,"width":649,"src":"\/\/davidsgardenseeds.com\/cdn\/shop\/files\/Sunflower_Grey_Stripe.jpg?v=1734716670"}},"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":45590847783169,"title":"5000 Seeds","option1":"5000 Seeds","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":40557900300545,"product_id":6751083724964,"position":1,"created_at":"2023-09-20T11:52:39-05:00","updated_at":"2024-12-20T11:44:30-06:00","alt":"Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds.","width":649,"height":649,"src":"\/\/davidsgardenseeds.com\/cdn\/shop\/files\/Sunflower_Grey_Stripe.jpg?v=1734716670","variant_ids":[45590847717633,45590847750401,45590847783169]},"available":false,"name":"Sunflower Mammoth Grey Striped 3 Sizes Non-GMO, Heirloom Seeds - 5000 Seeds","public_title":"5000 Seeds","options":["5000 Seeds"],"price":2600,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":"659467864788","featured_media":{"alt":"Tall Single. With huge flowers (often 10 to 12 inches across) these garden giants are developed for seed production (Sunflower oil, bird seed, etc.) Remember, these are the ones that grow from 8 to a whopping 12 feet tall, so unless you're planting them alone, scatter them throughout your meadow, or use them as a background screen. Kids love watching them grow so fast and so tall, and of course, they're magnets for songbirds.","id":33159196442881,"position":1,"preview_image":{"aspect_ratio":1.0,"height":649,"width":649,"src":"\/\/davidsgardenseeds.com\/cdn\/shop\/files\/Sunflower_Grey_Stripe.jpg?v=1734716670"}},"requires_selling_plan":false,"selling_plan_allocations":[]}]

Grow towering Mammoth Grey Striped Sunflowers, the ultimate garden giants! These tall, single-stem sunflowers produce huge flowers, often 10–12 inches across, making them ideal for seed production for both human and animal consumption.

Why Choose Mammoth Grey Striped Sunflowers?

Impressive Height: Grows 8–12 feet tall, perfect for a dramatic garden display or as a background screen.
Large Flower Heads: Produces massive 10–12 inch blooms.
Attracts Pollinators: A magnet for bees, butterflies, and other beneficial insects.
Loved by Kids: Watch the excitement as these sunflowers grow tall and fast!
Bird-Friendly: Naturally deters birds from eating seeds as the head matures and turns downward.

Planting Tips for Success

Direct Sow Only: These sunflowers must be direct sown; they do not transplant well.
Spacing: Plant seeds 12–18 inches apart for optimal growth.
Sunlight: Requires full sun for best results.
Coverage: 100 seeds cover a 10-foot square area; 1 pound covers 1,000 square feet.
Growth Cycle: Matures in approximately 80 days.

Special Features

Seed Production: Excellent for harvesting seeds for human snacks or animal feed.
Heirloom Variety: Passed down for over 75 years with reliable, consistent growth.
Natural Defense Mechanism: Heads naturally turn downward as they mature to protect seeds from birds.

Sustainability You Can Trust

Non-GMO Seeds: Grown naturally for a sustainable gardening experience.
Eco-Friendly Packaging: Reusable, recyclable, and climate-friendly materials.
Freshly Packed: Prepared for the current growing season with high germination rates next year as well.

Why Choose David’s Garden Seeds®?

Veteran-Owned: Supplying high-quality seeds since 2009.
GO TEXAN Certified: Supporting local agriculture and sustainable gardening practices.

Order Your Sunflower Mammoth Grey Striped Seeds Today!
Add these garden giants to your space for a vibrant, pollinator-friendly display and a reliable seed harvest.

Back to Sunflower