mammoth sunflower seeds planting Organic Sunflower Seeds — 'Mammoth Grey Stripe'
SKU: 69293918878
mammoth sunflower seeds planting

mammoth sunflower seeds planting Organic Sunflower Seeds — 'Mammoth Grey Stripe'

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Description

mammoth sunflower seeds planting Organic Sunflower Seeds — 'Mammoth Grey Stripe'Overview With stunning blooms from mid summer to early fall, sunflowers bring summer vibes to the garden like no other plant. Flowers come in many colors (yellow, orange, maroon, and more) but they are commonly bright yellow with dark brown centers anywhere from 4 to 12 inches in diameter! These iconic blooms are a beautiful addition to any garden. Sunflowers have two distinct growing habits, depending on the variety: Single stem varieties produce one

Overview

With stunning blooms from mid-summer to early fall, sunflowers bring summer vibes to the garden like no other plant. Flowers come in many colors (yellow, orange, maroon, and more) but they are commonly bright yellow with dark brown centers anywhere from 4 to 12 inches in diameter! These iconic blooms are a beautiful addition to any garden.

Sunflowers have two distinct growing habits, depending on the variety:

Single-stem varieties produce one flower for every seed, though blooms can reach up to 12 inches in diameter. 

Branching varieties produce multiple smaller blooms per plant that branch off of the main stem. 

Conditions

Sunflowers prefer fertile, well-draining soil that’s loose and deep. Ensure it is high in organic matter, as sunflowers feed heavily. Sunflower stems can grow tall, so ideally find a sheltered spot out of danger of heavy winds to limit the risk of weather damage. For optimal blooms and large plants, provide full sun (6+ hours of direct sunlight per day). Note - sunflowers may shade parts of the garden because they are so tall. Plant them in the northernmost section of the garden to prevent them from shading your other plants. 

Planting

Plant sunflowers directly outdoors in the garden after all danger of last frost. Use our grow calendar tool to find specific planting dates for your region! Seeds germinate in 7-14 days.

Plant seeds ½" deep in groups of 3, and space the groups 12-24" apart, depending on the variety. Note - single stem varieties can be planted more closely together, around 6-12". Firm soil lightly, water and keep evenly moist. Thin to one seedling per group when seedlings have two sets of leaves.  

Pests and Disease

Remove plants after they are killed by frost in fall to avoid disease issues the following year.

Harvest

Sunflowers can be left in the garden through blooming or cut for flower arrangements shortly after bloom. To harvest the seeds, cut the heads off after the stalks are quite dry and flower heads begin to turn yellow and droop. Cut flower-heads with a foot of the stalk attached. Hang heads in a warm, dry, well-ventilated place so the seeds may fully ripen and dry. 

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SKU: 69293918878

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Port Orchard, US
★★★★★ 4
Great product
Size: Large
I was hesitant about buying this product, but I'm so glad I did. My dog (who is a very aggressive chewer) absolutely loves this toy. He will spend hours chewing on this toy. He carries it around the house and will show it off to anyone who visits. Since getting this toy for him, he has stopped chewing up other toys and focuses his chewing and destructive chewing on this toy. He has not managed to destroy this toy as of a month of chewing.
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Reviewed in the United States on February 8, 2024
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Kindle Customer
Cuba, US
★★★★★ 5
Dog toy
Size: Large
This one is actually still intact. But only because my dogs don't like it!
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Reviewed in the United States on May 24, 2026
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NKH
San Leandro, US
★★★★★ 3
Not that great
Size: Large
My dog chewed on it a couple times but is mostly not interested in this toy.
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Reviewed in the United States on May 18, 2026
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sherry sanders
Whiting, US
★★★★★ 5
Great buy for an extreme chewer
Size: Large
I received this several days ago for my pit husky mix she is an aggressive chewer and it is still holding up, it's not as big as I thought it would be but it is big enough to wear she will not choke on it or get it lodged in her mouth and she loves it she carries it around everywhere definitely a good buy for us and we'll be buying more
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Reviewed in the United States on September 11, 2025
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Happiness
Grantham, US
★★★★★ 1
Choke's aggressively chewing dog’s
Size: Large
The pieces break often chokes your dog make your dog hack, and it get launched in the back of their throat Not good for dogs that are aggressive chewing
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Reviewed in the United States on June 4, 2026

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