We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🌞 Grow giant, glow vibrant, and own the garden spotlight!
Russian Mammoth Sunflower seeds produce towering 15-foot plants with enormous dinner plate-sized heads. These heirloom seeds boast 80% germination, are heat and drought resistant, and attract pollinators, making them perfect for eco-conscious gardeners seeking a bold, reliable summer bloom.
| ASIN | B00BCTN7TY |
| Best Sellers Rank | #170,360 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #5,772 in Flower Plants & Seeds |
| Brand | Ohio Heirloom Seeds |
| Customer Reviews | 4.1 4.1 out of 5 stars (138) |
| Expected Blooming Period | Summer, Winter |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.176 ounces |
| Manufacturer | Ohio Heirloom Seeds |
| Material Feature | Heirloom |
| Moisture Needs | Moderate Watering |
| Number of Pieces | 50 |
| Package Dimensions | 5.43 x 2.99 x 0.27 inches |
| Product Care Instructions | Water,Well-drained |
| Soil Type | Sandy Soil |
| Special Feature | heirloom |
| Sunlight Exposure | Full Sun |
| USDA Hardiness Zone | 5 |
| Unit Count | 1 Count |
C**Y
great seeds
Love it beware of bird!
J**E
price
seeds came up sun flowers are between 10 feet and 15 feet tall very happy fast delivery and very cheap
D**E
Jury still out.
Only had two of the many that I planted came up. But they were very impressive. Looking forward to next year.
J**I
Mammoth sunflowers
This is my first time growing sunflower seeds and my husband and I chose the mammoth heirloom for a start.. I put them in an egg carton with some potting soil and whammo! Within a few days they were already sprouting up and out like they were on fire.. Needless to say I transplanted them after 2 weeks and they have already started they're second set of leaves. I'm getting ready to put them in the ground and I can't wait to see how they do.. I will write another update soon
G**Y
Impressive and tall. Large seed heads
Low germination rate. Had to replant several times
R**N
Quality
These seeds were quality. Big beautiful sunflowers like I remember dad growing when I was a child.
B**E
Not one germinated
Seeds came out of the package very brittle and had poor color. Not a single seed germinated.
C**A
65 Mammoth Sunflower Seeds
Starting these mammoth sunflower seeds in ground today. The package came with 65 seeds. They look good to me so I'll try them and update periodically. I'm in zone 9b and I'll be planting in an area with morning and afternoon sun.
Trustpilot
3 weeks ago
1 month ago