Watermelon - Black Diamond seeds
Description
Description
Discover the Black Diamond Watermelon: A Unique Summer Treat
If you're looking to grow something truly special in your garden this summer, the Black Diamond watermelon is a showstopper worth considering. With its striking dark green, almost black exterior and sweet, crisp red flesh, this variety stands out from the typical watermelons you'll find at the grocery store.
What Makes Black Diamond Special
Black Diamond watermelons are prized for their exceptional sweetness and firm texture. The dark coloring isn't just for looks—it indicates a mature, fully ripened melon packed with flavor. These melons can grow quite large, often reaching 15 to 20 pounds or more, making them perfect for feeding a crowd at summer gatherings.
The flesh is a vibrant red with small black seeds, and the taste is consistently sweet and refreshing. Many gardeners and watermelon enthusiasts prefer this variety because it delivers reliable flavor year after year.
Growing Black Diamond Watermelons
Black Diamond watermelons thrive in warm, sunny locations with well-draining soil. They need plenty of space to sprawl, so plan for adequate room in your garden bed or consider using a trellis for vertical growing. These plants love heat and require consistent watering, especially as the fruit develops.
Plant seeds or transplants after the last frost date when soil temperatures reach at least 70°F. With proper care, you can expect to harvest mature melons in about 70 to 85 days. The key to success is providing full sun, regular watering, and nutrient-rich soil.
Harvesting and Enjoying Your Crop
A ripe Black Diamond watermelon will have a deep, dark color and feel heavy for its size. The bottom spot where the melon rested on the ground should be creamy yellow or pale orange. When you tap the melon, a ripe one produces a hollow, deep sound.
Once harvested, enjoy your watermelon fresh, chilled, and sliced. It's perfect for summer salads, smoothies, or simply eaten straight from the rind on a hot day.
- Germination Time | Usually 7-10 days with proper conditions
- Days to Maturity | 90 days from planting to harvest
- Plant Size | Vines can extend up to 12 feet in length, requiring ample space
Features
- Large heirloom watermelon variety with semi-oval shape, weighing up to 30 lbs
- Dark green, tough rind offers durability during growth and transport
- Bright red, firm, and very sweet flesh, ideal for slicing and consumption
- Thick vines provide extensive sun protection and support plant health
- Grows best in full sun environments with temperatures above 70°F
- Suitable for planting in April through June to optimize fruit development
Use Cases and Ideal Growing Conditions
- Best for home gardeners and small-scale farmers seeking a large, flavorful watermelon for fresh eating or sharing
- Recommended for gardeners with sufficient space to accommodate long vines and ample sunlight
- Perfect for summer garden installations in warm, sunny climates
- Ideal for gardeners on a budget looking for a reliable heirloom variety with high yield potential
Care Instructions and Additional Information
Plant seeds after the last frost date when soil temperatures reach at least 70°F. Water regularly to keep the soil consistently moist but not waterlogged. Mulch around plants to conserve moisture and suppress weeds. For best results, spacing plants 6-8 feet apart in rows at least 7-8 feet apart. Proper care and optimal growing conditions will produce large, sweet watermelons in approximately 90 days.
Frequently Asked Questions
What are the key features of Watermelon Black Diamond seeds?
When is the best time to plant Watermelon Black Diamond seeds?
How long does it take for Watermelon Black Diamond to mature?
What are the growing requirements for Watermelon Black Diamond?
Are Watermelon Black Diamond seeds suitable for organic gardening?
How big does the Watermelon Black Diamond grow, and what size can I expect the fruit to reach?
When is the best time to plant Watermelon Black Diamond for optimal growth?
What are the key features of the Watermelon Black Diamond's rind and flesh?
How long does it take from planting to harvest Watermelon Black Diamond?
Are Watermelon Black Diamond seeds non-GMO and heirloom?
continue shopping ...
🌱 Featured Collections
View seed catalog
We now accept the following payment methods
About Our Seeds
About Our Seeds

|
GMO-FREE We also offer a few hybrid varieties on this website and they will be labeled as such on product listing. |
|
|
|
MOISTURE-PROOF PACKAGING All our seeds are packaged in high quality re-sealable moisture-proof packs designed to protect & extend the shelf-life of your seeds. We do NOT use paper envelopes. Read frequently asked questions |
![]() |
|
|
5-STAR CUSTOMER SUPPORT |
![]() |
|
|
SATISFACTION. GUARANTEED. |
![]() |
|
|
HIGHEST QUALITY SEEDS |
|
|
|
TOTALLY RAW & UN-TREATED |
|
Know where your food comes from.
Support local growers.
Grow your own Organic/GMO-FREE food!
Useful Links: [What is GMO?] [Step-by-Step Grow Guides] [Safe Seed Pledge] [FAQs]
WE DO NOT GROW OR SELL SEEDS FROM MONSANTO OR ANY OTHER COMPANY THAT IS AFFILIATED WITH GMO.
✓ NON-GMO
✓ HEIRLOOM
✓ OPEN-POLLINATED (OP)
✓ RAW, NATURAL & UN-TREATED
Safe Seed Pledge
Safe Seed Pledge
OUR PLEDGE TO YOU
Agriculture and seeds provide the basis upon which our lives depend. We must protect this foundation as a safe and genetically stable source for future generations.
For the benefit of all farmers, gardeners and consumers who want an alternative. We pledge to you that we do not knowingly buy or sell genetically engineered seeds or plants. The mechanical transfer of genetic material outside of natural reproductive methods and between genera, families or kingdoms, poses great biological risks as well as economic, political, and cultural threats.
We wish to support agricultural progress that leads to healthier soils, genetically diverse agricultural ecosystems and ultimately healthy people and communities.
We do not buy - OR - grow any seed from large corporations that make Genetically Engineered seeds. We don't touch that stuff and we never will.
The seeds we offer aren't like varieties you'd typically find at a garden center.
Every variety we offer is 100% OP (open-pollinated). Open-pollination means that you can safely save the seed after harvest and preserve a collection of heirloom seed for many generations to come.
To make it perfectly clear ... Our seeds do not contain any exogenously inserted embryogenesis deactivator genes caused by human intervention.
⭐⭐⭐⭐⭐
Highest Quality Seed, Guaranteed
... continue shopping!











