SKU: 7427021611
sunflower seed packets for planting

sunflower seed packets for planting Wetsel Seed Russian Mammoth Sunflower Plant Packets – Greenhouse Megastore

Sale price$26.01 Regular price$28.90
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Ships within 48 hours · Estimated delivery Nov 6 - Nov 11

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Description

sunflower seed packets for planting 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:
  1. 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
SKU: 7427021611

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Based on 25 reviews
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Birdie
Natrona Heights, US
★★★★★ 4
Loose on standard pillow.
Size: Queen, Color: White
Too large for standard pillow. It would fit a queen size pillow much better. It does stay cool.
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Reviewed in the United States on November 20, 2025
A
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AmazonSmile
Birmingham, US
★★★★★ 5
Soft and cool. Very cool. 🧊
Size: Queen, Color: White
I bought these for my memory foam pillow and they’re excellent for cooling it. I use 2 of these on the pillow for maximum chill factor and it works. They’re very soft, the zippers are high quality. Easy to put on with a bit of stretch- generously sized. They’re stain resistant. I’m glad they’re NOT waterproof because they’d be too hot then. They’re very durable. Wash on delicate setting in a mesh bag and air dry and they last long. They’re very quiet- smooth and silky. Definitely recommend!
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Reviewed in the United States on January 15, 2026
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Jamie Cowan
Boise, US
★★★★★ 3
Cool enough
Size: Queen, Color: White, Size: Queen, Color: White
I thought I had purchased pillows so when I received these I was a little disappointed. However that was 100% on me for not reading the listing and just trusting my search. I decided to give them a try and so far they seem ok. They don’t stay cool even though I have them on cooling pillows. They are super thin but very soft. They fit on my pillows perfectly. I don’t think it has improved my sleep quality but it hasn’t made it any worse either. I don’t think they are waterproof but I don’t really want to test that. I like that the zipper is small and seems to be decent quality. Smelled heavily of chemicals when I first took it out of the package but that disappeared after a few minutes.
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Reviewed in the United States on March 21, 2026
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Amazon Customer
Carnegie, US
★★★★★ 5
Sleep like a baby
Size: Queen, Color: White
These pillow covers are cool. They keep you cool at night. very, very comfortable.
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Reviewed in the United States on May 13, 2026
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Chris Hernandez
Alexandria, US
★★★★★ 5
Very well made.
Size: King, Color: White
These work great and look good.
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Reviewed in the United States on April 27, 2026

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