Flowering from July to August, the ‘Black Diamond’ watermelon is the largest edible fruit grown in the United States. Vines can grow up to 20 feet in length. Texas, Georgia, Florida and California produce about two-thirds of the watermelons in the United States.
Is Black Diamond a good watermelon?
Black Diamond is one of the truly great watermelon varieties for both home gardeners and market growers. The rind of the fruit is a striated green, and the flesh is a delicious red. Black diamond routinely produces watermelons in the 50 pound range, but some can grow as large as 75 pounds!
What is a black diamond watermelon?
Black Diamond is a classic oblong watermelon with a black-green rind covering bright red, crisp, flavorful flesh. In the 1950s, Black Diamond was a very popular home garden variety. Fruits have gray-black seeds (perfect for seed spitting contests) and can grow quite large.
How do you grow a black diamond watermelon?
Direct-seed 1 to 2 weeks after average last frost when soil is 70 F or warmer. Plant 1 inch deep, 6 seeds per hill, hills 4 to 6 feet apart; or 1 foot apart in rows 5 feet apart.
How big do heirloom Black Diamond watermelons get?
Black Diamond Heirloom Watermelon grows on tough, vigorous vines. Black Diamond Watermelon fruits can average 30-50 pounds, with some reaching up to 125 pounds! This watermelon variety has dark, blue-green thick rinds which protect the sweet, firm bright-red flesh.
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.
What happens if you eat a black watermelon seed?
Short Answer: No, you’ll survive. Long Explanation Answer: Fact- Swallowing a watermelon seed will not cause a watermelon to grow in your stomach. … So remember, watermelon seeds completely safe to swallow, and they actually have many health benefits. If you eat them raw, you will miss out on all of these benefits.
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.
Are Black Diamond watermelons heirloom?
Black Diamond is an heirloom, open-pollinated variety of watermelon. … Black Diamond watermelon plants produce vigorous vines, which often yield fruits weighing in excess of 50 lbs.
How do you know when a 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 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.
How long does it take for Black Diamond watermelon to ripen?
These large, sweet melons can take around 90 days to mature and need plenty of sunshine and water to keep them strong and healthy.
Is Black Diamond watermelon a hybrid?
Watermelon, Black Diamond (100% Heirloom/Non-Hybrid/Non-GMO) Popular large heirloom watermelon with semi-oval shape than can weigh up to 30 lbs.
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.
How much does a black diamond watermelon cost?
|1 Lb Mylar||$16.20||– +|
|5 Lb Bulk Bag||$72.90||– +|
|10 Lb Bulk Bag||$129.60||– +|
|25 Lb Bulk Bag||$307.80||Notify Me|
What does the inside of a black diamond watermelon look like?
The melons have thick, tough skin that is solid deep green, almost gray in color. Inside, however, the flesh is a pale shade of yellow. The flavor has been described as sweet, though not as sweet as other yellow watermelon varieties.