How big do Black Diamond watermelons get?

‘Black Diamond’ watermelons (Citrullus lanatus) grow in USDA hardiness zones 8 through 11. The fruit grow from 30 to 40 pounds, and the vines produce reliably. The cultivar produces melons with thick, dark skins with large leaves that are resistant to the sun.

How do I know when my black diamond watermelon is ripe?

Monitor the color of the skin. As the Black Diamond matures, the skin turns dark green and becomes dull. The skin on the belly of the fruit, where it touches the ground, becomes a light yellow. The melon is ripe when it has a light yellow belly and dull, dark-green skin on the rest of the surface.

How long does it take for a black diamond watermelon to grow?

Fast Facts

Name: Watermelon Seeds – Black Diamond
Days to Maturity: 60-90 Days
Plant Spacing: 36-48 inches
Planting Depth: 1 inch
Sowing Method: Start Indoors, Direct Sow

How much space does a black diamond watermelon need?

Light requirements: Full sun. Planting: Space 36 to 60 inches apart. (Read the stick tag that comes with the plant for specific spacing recommendations.) Soil requirements: Provide well-drained, nutrient-rich soil that’s high in organic matter.

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How big will my watermelon get?

Quick Reference Growing Guide

Exposure: Full sun Soil Drainage:
Time to Maturity: 70-100 days Companion Planting:
Spacing: 3-6 feet, in rows 6-18 feet apart Avoid Planting With:
Planting Depth: 1 inch Order:
Height: 15-24 inches Family:

Why is black watermelon so expensive?

The Densuke watermelon is considered the most expensive watermelon in the world and it can cost a minimum of $250 up to $6,000 each. The final cost of this fruit reflects the amount of time and dedication to its cultivation space.

What is the sweetest watermelon?

Sultan. Sultan is one of the sweetest varieties you’ll find, this one measures 12.3 on the Brix scale. The fruits average 15 pounds and ripen within 95 days.

How do you take care of a black diamond watermelon?

For best results, aim for a soil pH between 6.5 and 7.5, advises Cornell University. Because the water content of watermelons is over 90 percent, these fruits also require consistent moisture until the fruit is set. Black Diamond watermelons grow best in full sun, which means six hours a day.

What is the most expensive watermelon?

A black jumbo watermelon auctioned in northern Japan fetched a record 650,000 yen (US$6,100) Friday, making it the most expensive watermelon ever sold in the country — and possibly the world.

What does a black diamond watermelon taste like?

Black Watermelon Taste

“Black Diamond’ watermelons taste mild and delicate due to their high water content, which is more than 92 percent. Over the years, these watermelons have been cultivated to have a more appealing flavor that’s sweet and satisfying, which means they’re an excellent dessert fruit.

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Why is my black diamond watermelon white inside?

White heart is a disorder that can develop during the final stages of watermelon growth. With this disorder, white streaks appear throughout the flesh of the melon. … This disorder can be caused by over-watering or over-feeding your watermelon patch, especially during the ripening process.

How many watermelons do you get per plant?

How Many Watermelons per Plant? Healthy watermelon vines produce 2-4 fruits per plant. The vines produce both male and female flowers. Both are needed to set fruit and there are fewer female flowers compared to male, about one female for every seven males.

Which watermelon is best?

You should pick a melon that has a strong, consistent stripe pattern. The green stripes should be a deep, dark green, while the pale stripes should be a creamy, light yellow. Additionally, you may want to choose a dull looking watermelon. If the melon is very shiny, it is likely underripe.

What is the lifespan of watermelon plant?

About 2 to 3 melons can be obtained per plant in its single lifespan of 3-4 months. Usually, gardeners purposely keep only one watermelon per plant to harvest big sized fruits.

How many watermelons can one acre produce?

Native to central Africa, watermelons were first cultivated by ancient Egyptians. Farmers plant 1,600 to 1,800 watermelon plants per acre. One commercially-grown plant produces one or two melons in the field.