Pay in installments of $5.17 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
Promo Codes Available:
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
4.1 ★★★★★
Based on 21 reviews
Sort
Product Reviews
★★★★★ 4
Perfect fit in my dog crate, nice loft to it
Color: Grey, Size: 35" x 23"x 3.5"
Really nice dog bed, fits perfectly in the crate that I have. This thing is rather large and bulky and difficult to wash. I wish that there was a zipper on it and that you could remove the stuffing so that you can wash just the cover. Before putting it inside the dog crate, I had it on my couch. My daughter thought it was a new pillow for her to use and was bummed when I told her it was for the dogs. She liked it and thought it was quite comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
★★★★★ 5
AMAZING
Color: Grey, Size: 41" x 27"x 4"
This bed is huge and perfect for my two doggies who want to share but need a bigger space. Its also firm so that they have all the support they need. Its an amazing bed for my fur babies
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
So soft, nice padding, & color perfect for a dog’s bed
Color: Beige, Size: 41" x 27"x 4", Color: Beige, Size: 41" x 27"x 4"
Of course, this dog bed came lumpy, but once you roll it out and manipulate it it lays perfect. My dog Loki outgrew the little one that we had but this one is perfect. He’s 55 pounds and I would say it’s even a little bit big for him. We will definitely keep it though. It’s so soft and pretty and Loki will not leave it so it’s a win-win.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
Great Pet Beds!
Color: Grey, Size: 41" x 27"x 4"
These dog beds are wonderful! I have two large dogs (65-70 lbs) who lay on them daily. They’ve maintained their shape and thickness. The size is perfect, and they’re easy to spot clean. I definitely recommend them, especially if using in a carpeted room. Great value!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
★★★★★ 5
Single greatest thing I’ve ever bought for my dogs
Color: Charcoal, Size: 35" x 23"x 3.5", Color: Charcoal, Size: 35" x 23"x 3.5"
Few years ago we got our dog a dog. It was a bad idea. Our first dog is incredibly smart. He’d much rather hang out with humans, sitting in his own chair at the table while we play board games and chat than chase a ball. He uses talking buttons and picked it up quickly. Even as a little puppy he was kind of serious and when we’d take him to the dog park he’d mostly just run around barking at other dogs who were having too much fun.
Then came his brother who turned out to be the absolute opposite in every way. A silly, goofy, snuggly, floppy little muppet of a dog. Highly empathetic and Looooves to make people laugh. Our other dog mostly wanted nothing to do with him, barely tolerating him at the best of times. We thought, surely he’ll learn to love his brother. But 3 years later… nope.
Our first dog loves a good pillow so I thought this might make a good gift. I had no idea just HOW good. For some reason ever since our dog opened this gift he’s been obsessed. But so has our other dog. We initially were worried it would become one more thing for them to fight over BUT we were wrong. The dogs have been getting a long SO well! As long as it’s on this pillow, our first dog allows our second dog to come close enough to touch him.
They sleep next to each other, they wrestle, there’s no growling or grumping and our first dog will come over and lay next to his brother if he’s laying on this.
We’ve started calling it The Peace Pillow.
Anyway, I could have just said “it’s great” but it might actually be magic. Your experience may vary.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026