If you’re in the market for black diamond watermelon, you won’t want to miss our Best black diamond watermelon list in 2023. Our carefully curated selection is based on 47999 customer reviews gathered from all around the world – giving it a truly global perspective!
See what others are raving about now and make sure that your next purchase will be one of lasting value.
SaleBestseller No. 1
50 Black Diamond Watermelon Seeds for Planting - Heirloom Non-GMO Fruit Seeds for Planting - Grows Big Giant Watermelons Averaging 30-50 lbs
- Quintessential, King, Favorite, whatever you want to call it, this watermelon is popular for a reason!
- This delicious watermelon averages 30-50 lbs, but sometimes gets as big as 75 lbs! Plants grow 12-18" tall.
- In areas with shorter growing seasons it is best to start watermelon seeds indoors to get a head start. Plant 3 seeds per pot about 1/4" deep and provide heat to about 80 degrees to increase germination.
- Ensure soil does not dry out due to heat. Seeds should germinate in 1-2 weeks. After seeds have germinated thin to one per pot. Make sure to acclimate plants to the outdoors for several days prior to transplanting to harden them off.
- To sow directly in garden plant 5 seeds per hill 1' apart with 4' between rows. Requires healthy amounts of water and warm temperatures. Black plastic on soil can aid in warming soil.
Bestseller No. 2
"Black Diamond" Watermelon Seeds for Planting, 50+ Heirloom Seeds Per Packet, (Isla's Garden Seeds), Non GMO Seeds, Botanical Name: Citrullus lanatus, Great Home Garden Gift
- Fantastic addition to your home garden! Black Diamond Watermelon can grow to be 50 lbs. Some level of previous experience comes in handy when growing this plant. Ensure that you are aware of the soil, sun, ph and water requirements for this plant and keep an eye out for pests.
- These watermelons are so perfect for your home garden! A must buy and try! Seeds are great for Planting in Garden or for storing in a seed safe for emergency.
- Annual. 85 days. 6-12" height. 5-6' spacing. Produces nearly round 25 lb. average striped green watermelons with crimson flesh.
- Hardiness Zones: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Latin Name: Citrullus lanatus Type: Open Pollinated, Warm Season
- Please post pictures of your plants in a review! - Isla's Garden
Bestseller No. 3
Watermelon, Black Diamond, Heirloom, 50 Seeds, Super Sweet Round Melon
- Great Tasting, Old Fashioned Watermelon Flavor
- Easy to Grow Large 30 to 50 Pound Melons
- Great Producer--Lots of melons per Plant
- Better Than Anything in the Store
- Most Grocery Stores Don't Stock This Variety
Bestseller No. 4
25 Black Diamond Watermelon Seeds | Non-GMO | Heirloom | Instant Latch Garden Seeds
- Name: Black Diamond Watermelon Seeds | Botanical Name: Citrullus lanatus
- Type: Heirloom | Size at Maturity: 50+ Pounds | Days to Maturity: 85 Days
- Light Requirement:Full Sun | Planting Time:Warm Season
- Sowing Method: Direct Sow | Planting Depth: 1" | Plant Spacing:36" | Hardiness Zones:All
Bestseller No. 5
Black Diamond Watermelon Seeds, 25 Count "COOL BEANS N SPROUTS" Brand. Heirloom. Non-GMO. Home Gardening.
- Cool Beans n Sprouts Brand
- Main picture does not indicate the amount being sent. You will receive the quantity of seed you purchased from the title listing.
- All seeds are grown and packaged to order in the U.S.A.
- Thank you for your order from a small, family-run business!
Bestseller No. 6
Bestseller No. 7
Black Diamond Watermelon Seeds | 50 Seeds | A Summer Favorite | Fruit Seeds for Planting
- FRESH SEEDS: Get 50+ Seeds of the Delicious and Popular Black Diamond Watermelon to grow.
- HUGE MELONS: Large 30-60 pound watermelons for summer parties
- MADE IN USA: Hand packaged and shipped by CZ Grain in Iowa. Made in USA
- EASY TO GROW: Instructions included. Watermelons are very easy to grow.
- GROW OR GIFT: Makes a great stocking stuffer of gift for almost anyone that likes eating!
Bestseller No. 8
40 Heirloom Black Diamond Watermelon Seeds by Stonysoil Seed Comany
- Packet contains 40 plus Seeds handpacked with heart and care by Stonysoil Seed Company
- Thrives in high temperatures
- Old time heirloom that is very sweet ,can exceed 35 pounds but average 20 to 24 pounds
- THICK BLACK RIND
- GROW SOME BLACK DIAMONDS IN YOUR OWN BACKYARD
Bestseller No. 10
Black Diamond Watermelon Seeds,100 Count "COOL BEANS N SPROUTS" Brand. Heirloom. Non-GMO. Home Gardening.
- Cool Beans n Sprouts Brand
- Main picture does not indicate the amount being sent. You will receive the quantity of seed you purchased from the title listing.
- All seeds are grown and packaged to order in the U.S.A.
- Thank you for your order from a small, family-run business!
Bestseller No. 12
Bestseller No. 13
Watermelon, Black Diamond, Heirloom, 100 Seeds, Super Sweet Round Melon
- Great Tasting, Old Fashioned Watermelon Flavor
- Easy to Grow Large 30 to 50 Pound Melons
- Great Producer--Lots of melons per Plant
- Better Than Anything in the Store
- Most Grocery Stores Don't Stock This Variety
Bestseller No. 14
Watermelon, Black Diamond, Heirloom, 25 Seeds, Super Sweet Round Melon
- Great Tasting, Old Fashioned Watermelon Flavor
- Easy to Grow Large 30 to 50 Pound Melons
- Great Producer--Lots of melons per Plant
- Better Than Anything in the Store
- Most Grocery Stores Don't Stock This Variety
Bestseller No. 15
Black Diamond Heirloom Watermelon Seeds
- Black Diamond Watermelon has Delicious, Sweet Flesh.
- It is One of the Most Popular Heirloom Watermelons.
- Plant 1" Deep in Full Sun with Adequate Water - 25+ Pounds in Weight
- 90 Days to Maturity and Hardy in All Zones
- Marde Ross & Company has been a Licensed California Nursery since 1985.
Bestseller No. 16
Black Diamond Watermelon Seeds - 20 Seeds Non-GMO
- FREE SHIPPING!
- 20 Seeds
- Non-GMO
- 90 Days to Maturity
SaleBestseller No. 18
David's Garden Seeds Fruit Watermelon Black Diamond 1988 (Red) 50 Non-GMO, Heirloom Seeds
- Harvest in about 80 days
- Seeds are Non-GMO, easy to grow and hand packed by David's Garden Seeds in the United States of America
- Fruits grow to 50 pounds or more
- Great texture, outstanding flavor
- Germination rate about 80% or better
Bestseller No. 19
HeirloomSupplySuccess 25 Heirloom Yellow Belly Black Diamond Watermelon seeds
- 100% Open Polinated, 100% Non-GMO, 100% Non-Hybrid, 100% Heirloom
- Bonus Sample pack of seeds with each pack of seeds purchased
- Genuine HeirloomSupplySuccess TM products may only be purchased from us the Official Brand Owner and only retailer of "HeirloomSupplySuccess products. All other claims to such are false, misleading replica of our authentic products. We do not and will not ever utilize another party to market or sell our Genuine products.
Bestseller No. 20
Black Diamond Watermelon - Lip Licking Juicy red Melons as Large as 75 pounds!(10 - Seeds)
- Heirloom, Organic, Non GMO, Vegetable, Fruit, Herb, Flower Garden Seeds
- Great addition to your Garden, Greenhouse or Flower Bed!
- Delivery and Item Guarantee!
Our selection of top-rated black diamond watermelon provides something for everyone, no matter your budget. We’re sure you’ll find the perfect item to fit all your needs!
