SKU: 18285185225
heirloom sunflower seeds for planting

heirloom sunflower seeds for planting Sunflower - Mammoth Grey | Mylar Packaged

Sale price$26.07 Regular price$28.97
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Description

heirloom sunflower seeds for planting Sunflower - Mammoth Grey | Mylar PackagedPacked in Resealable Long Life Mylar Moisture Proof Packets 10+ Year Survival Seed Viability Category: Herb Type: Sunflower Variety: Mammoth Grey Family: Asteraceae Botanical Name: Helianthus annuus Hardiness Zones: 5,6,7,8,9 Growing Difficulty: 1 Soil PH: 4. 5 to 8. 0 Fertilizer Requirements: 10 10 10 Soil Type: Well Drained Soil Germination (days): 14 to 28 Soil Temp for Germination: 60 70F Lighting Conditions: FULL SUN Days to Maturity: 90 120

Packed in Resealable Long Life Mylar
Moisture Proof Packets
10+ Year Survival Seed Viability

  • Category: Herb
  • Type: Sunflower
  • Variety: Mammoth Grey
  • Family: Asteraceae              
  • Botanical Name: Helianthus annuus
  • Hardiness Zones: 5,6,7,8,9
  • Growing Difficulty:  1                        
  • Soil PH:  4.5 to 8.0
  • Fertilizer Requirements: 10-10-10
  • Soil Type: Well Drained Soil
  • Germination (days): 14 to 28            
  • Soil Temp for Germination: 60-70°F
  • Lighting Conditions: FULL SUN
  • Days to Maturity:  90 - 120
  • Planting Depth:  1/4”
  • Distance Apart (in row):  12”
  • Row Spacing: 12 - 18”

Sowing Instructions

DIRECT SOW IN FULL SUN WHEN SOIL TEMPS ARE ABOVE 60°F

Starting Indoors

6-10 WEEKS BEFORE LAST FROST

Growing Tips

Direct sow your seeds in the garden when soil temperatures are between 60-70°F. Transplant from indoor starts when soil temperatures are around 70°F. Plant multiple seeds outdoors or in each cell (indoor starting) and thin to the most successful plants.

We tend to plant Sunflowers at random without thinning and allow them to establish on their own without intervention.

Culinary Uses

Mammoth Grey Sunflowers are known for their large heads and numerous seeds. The seeds harvested are usually roasted, salted and eaten as a snack. Birds also love sunflower seeds, so do not be surprised to see them stealing your seed crop.

Harvesting Seed

Harvesting sunflower seeds can be fun for everyone. Wait until the sunflower petals start to wilt and fall off the sunflower head. The head should start to become dry and brown and may even start to fall over.

Once the heads start to become brown, place a paper bag upside-down over the head of the sunflower. (This protects your seeds from birds and squirrels).

Check your sunflower heads daily to see if the seeds have become hard. Once the seeds are hard enough to harvest, cut the stem of the flower and hang it upside down to dry thoroughly. Once the heads and seeds have dried enough, running your hands back and forth over the seeds will release them.

Roast your seeds as a snack or save them for next years harvest. (We recommend saving your seeds from the first harvest to produce hundreds of plants the next year)

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 18285185225

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Amazon Customer
Birmingham, US
★★★★★ 5
Flexibility and clean desk space!!!
Bought three of these for my home office. Two for Synology NAS drives and one for a Mac Studio. The size ranges make this the perfect product to get everything off my desk. A little difficult to install with the desk upright so I suggest turning it on its side or over completely. In my case, I have these in sit stand desks which is great.
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Reviewed in the United States on December 24, 2025
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William Lech
Louisville, US
★★★★★ 4
Decent bracket, Non-beveled screw holes cause complications
The screws that secure the mount to the underside of the desk stick out enough to cause the inner dimensions to change. I had to use the next hole down to increase the size of the bracket to accommodate my device, resulting in a less secure mount than desired. If the holes were beveled so that the screws fit more flush with the mount I'd be able to give it 5 stars. But the inner dimensions are not entirely as advertised due to the screws. Quality is up to standard otherwise, installation is relatively straightforward, price point is fine for a bracket of this size.
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Reviewed in the United States on September 18, 2025
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Kris
Chelsea, US
★★★★★ 5
Great mount!
Great under desk NAS mount. Adjustable and sturdy, easy to install. Worked well for my Qnap TR-004 four slot DAS. I used 5/64 drill bit for the holes. Since my desk has a rear lip I reused rear stopper bit as a headphone hanger. I bend it slightly to a hook shape.
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Brian
Lexington, US
★★★★★ 5
Tucks my NAS away
Sturdy and a major space saver. Worth the money to free up valuable desk space. Held my 6 bay QNAO NAS perfectly. Highly recommend.
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Reviewed in the United States on November 28, 2025
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Christopher Shaw
Fort Morgan, US
★★★★★ 5
Perfect for under-desk NAS/DAS
Worked perfectly for my TerraMaster D320 DAS
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Reviewed in the United States on January 20, 2026

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