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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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For Your Every Summer RSVP, with Code: SUMMER15
Description
plant mammoth sunflower seeds Wetsel Seed Russian Mammoth Sunflower Plant Packets – Greenhouse MegastorePlants are huge with upright heavy, tall stalk that are a good 3 4in in diameter. These giant sized sunflowers are stunning not just because they grow an average of 8 10ft but their flower head size has a diameter that can reach and amazing 12 14in. The tall stalks support bright, yellow single lush flowers with umbrella like leaves that surround huge centers that are filled literally with up to one thousand with seeds. Sometimes the heads get so
Plants are huge with upright heavy, tall stalk that are a good 3-4in in diameter. These giant sized sunflowers are stunning not just because they grow an average of 8-10ft but their flower head size has a diameter that can reach and amazing 12-14in. The tall stalks support bright, yellow single lush flowers with umbrella-like leaves that surround huge centers that are filled literally with up to one thousand with seeds. Sometimes the heads get so large that the stalk begins to bend but quite often they grow up straight and tall. Seeds are very attractive to birds. The flowers towering over the garden making a perfect growing screen or background for any shorter plants.Annual sunflower seeds grow best in USDA Plant Hardiness Zones 4-9, which includes much of the Northeast, Mid-Atlantic, Midwest and Pacific Northwest. Not sure whether Russian Mammoth Sunflowers will grow in your area? Call 1-888-281-9337 to speak with a Greenhouse Megastore sales associate.
Wetsel Russian Mammoth Sunflower Seed Features:
- Bloom Color - Yellow with Orange Center
- Zone - 4-9
- Germination Time - 10-14 Days
- Blooming Season - Late Summer to Early Fall
- Maximum Height - 8-10ft
- Plant Spread - 36-40in
- Blossom Size - 12-14in
- Exposure/Light Requirement - Full Sun
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 548 reviews
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Product Reviews
★★★★★ 5
Comfortable yoga mat
Color: Blue Mist, Style: 1/2 inch, Color: Blue Mist, Style: 1/2 inch
I was due for a new yoga mat as I practice every day anywhere from 10 minutes to 45 minutes. Over the years I've taken to liking the 1/2" thick mats with the grip lines. They're just easier on the joints (two acl reconstructions and a spinal fusion from T2 to L2) and a plate in my wrist. This mat is great. I like the design and color, the thickness is perfect, no smell AT ALL which is both rare and awesome. I used it today and found it comfortable. I also like the 72" length because I'm about 5'9 so I'm not hanging off the mat. I've been practicing yoga for over 15 years and have my CYT 200 even though I don't teach, and I would highly recommend this mat.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Thick/Fluffy
Color: Violet Haze, Style: 1/2 inch
I’ve really been enjoying this yoga mat. It’s fluffy and thick, which gives great support for my knees during certain poses and stretches. The length is also perfect, especially for someone on the taller side. I chose the light purple color, and it matches the pictures perfectly. As someone who practices yoga regularly and also uses it for stretching in my home gym, I think this mat is a great choice for both comfort and support.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Great for hand pain while working out.
Color: Wild Spruce, Style: 1/2 inch
Not squeaky, non slip. Much thicker and comfier than a normal yoga mat. Only thing is wearing sneakers on it, it might give you some more squeak. Just wipe down with a wet wipe after class. Keep it in my car. Purple color is perfect- muted yet a statement. Goes with all my clothes/towels.
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Reviewed in the United States on May 9, 2026
★★★★★ 4
Lightweight yoga mat
Color: Rose, Style: 1/2 inch
The yoga mat is not one of those heavy-duty ones. It’s quite light, but it tends to crease easily and takes a long time to return to its original shape after being rolled or folded.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Great Mat!
Color: Boysenberry, Style: 1/2 inch
I’ve been using this mat 4+ days a week for 2.5 months and it is durable and comfortable. I use it for yoga, sculpt, and Pilates. It’s held up during burpees, pushups, and plenty other moves that I half expected would tear the mat, but it’s held up great. It also gets wiped down with a disinfectant after each use. Still like new. Great price too!
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Reviewed in the United States on May 9, 2026