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Heirloom ★ Best Seller Non-GMO

Black Diamond Watermelon

$4.50 Packet - 30 Seeds
Mix ’n Match: buy 20+ eligible packets and pay just $3.75 each

Packet sizes count toward the offer. Bulk, PakPlus, and ProPak sizes are excluded.

Packet Size
Flat $7.99 shipping Germination guaranteed Non-GMO
Quick Facts
Days to Maturity90 days
SunlightFull Sun
Spacing18 - 36 Inches
Germination4–10 days
Growing Information

Growing Black Diamond Watermelon

A full-season heirloom that’s the preferred round variety in the South. Flesh is bright red, firm and extra sweet. Fruits are round to nearly round, with a dark green rind sporting a bluish cast. A favorite of market growers who prize its remarkable shipping ability.

Know to grow — When sowing, place the pointed end of the seed down.

  • Days to Maturity: 90
  • Sow Method: Direct Sow
  • Sow Depth: ½ Inch
  • Spacing: 18 - 36 Inches
  • Sun: Full Sun
  • Fruit Weight: 30 - 40 Lbs

Catalog Page: 65

How to start

Direct Sow

Sowing depth

½ Inch

Plant height

Vines 6–12 ft.

Botanical name

Citrullus lanatus

Questions

FAQ

How should I start these seeds?
Recommended sow method: Direct Sow.
How deep should I sow the seeds?
Sow at a depth of ½ Inch.
How long until they germinate?
Typical germination: 4–10 days.
How far apart should I space them?
Recommended spacing: 18 - 36 Inches.
How much sun do they need?
Recommended sun exposure: Full Sun.
What’s your germination guarantee?
We stand behind the germination quality of our seed. If you have a germination issue, contact our team and we'll help make it right.
Not sure when to plant in your area? Planting dates depend on your local frost dates and growing zone.
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