Watermelon, Black Diamond Heirloom Seeds

Citrullus lanatus

Regular price $2.49
Regular price Sale price $2.49
Sale Sold out
Skip to product information
1 of 9

Watermelon, Black Diamond Heirloom Seeds

Citrullus lanatus

Regular price $2.49
Regular price Sale price $2.49
Sale Sold out

Earn +3 points for this item with our rewards program.

Product Information Chevron Down Chevron Forward

Black Diamond Heirloom Watermelon seeds grow into tough, vigorous vines that produce heavy fruit.

Black Diamond Watermelon fruits average 30 to 50 pounds, with some reaching up to 125 pounds!

This watermelon variety has dark, blue-green thick rinds that protect the sweet, firm, bright-red flesh. These fruit seeds are widely used throughout the Southern United States. With a deep, rich flavor and vibrant color, these watermelons are not just fruits; they're Nature's sweetest treasure!

Sku: 4169R

Common Name: Watermelon

Botanical Name: Citrullus lanatus

Growing Information Chevron Down Chevron Forward
Safe for bees

Safe
for Bees

Grows best In

Grows
Best In:

Full Sun

Germination

Days to
Germination:

6 - 8 Days

Maturity

Days to
Maturity:

75 - 95 Days

Height

Growing Height:

4 - 8"

water Needs

Water
Needs:

Moist (2 in / week)

Key Features Chevron Down Chevron Forward

Characteristics: Attracts Bees

Fill Weight (grams): 2

Approximate Seed Count: 5 - 15

Flavor: Crisp, juicy, and sweet.

Preparation Ideas: Perfect for a refreshing summer slice.

Plant Type: Fruit

Plant Lifecycle: Annual

Landscape Use: Edible Garden

Growth Type: Vining

Growing Season(s): Spring|Summer

Harvest/Bloom Season(s): Spring|Summer

Package Dimensions: 3.25 x 4.5"

Instructions Chevron Down Chevron Forward

Sow a few seeds evenly spaced in hills, 8 inches high and 12 inches across. Young vines should have a fence, trellis, or heavy cord on which to climb. When young vines are about 8 inches, thin to 3 plants per hill. Does not transplant well.

Planting Depth: 1"

Seed Spacing: Sow Black Diamond Heirloom Watermelon seeds roughly 8' apart, keeping rows approximately 6' apart.

Nutrient Care Instructions: Apply SUPERthrive once per week. Soak in solution of 1/4 tsp per gal for 15 min. or longer depending on size and type.

Suggestions Chevron Down Chevron Forward

Choose a site with good drainage, good air circulation, and full sun. They're ready to harvest when the skin on the underside turns yellow and when a thump with knuckles produces a hollow sound.

Shipping Chevron Down Chevron Forward

**Free shipping is available on all orders over $35. **Orders under $35 have a shipping rate of $7.99, and seed-only orders have a shipping rate of $2.99. Most orders are shipped within 2 business days of purchase. However, live plants and embroidered items may take 2-7 business days to ship, depending on the day of the week you place your order. For more information, please click here to review our shipping & returns policy.

At Ferry Morse, we are proud of our non-GMO & guaranteed fresh seeds.

icon-1 icon-2 icon-3 icon-4

Garden growing Quiz

Find Your Best Match

Take our quiz to find the perfect plants and products for your location, skill level, and interests.

Find your best match in under 2 minutes!

Garden growing Quiz

Find Your Best Match

Join Our Rewards Program today to start saving

Free Shipping on
Seed Only Orders!

There are a ton
of ways to earn!

Redeem points for
BIG savings!