Black Diamond Watermelon is oftentimes called the ‘king’ of the garden, sometimes weighing 50 pounds or higher. The bright red flesh is recognized for its juiciness and sweet taste. Expect approximately a couple of months of growth after germination before melons are prepared for harvest. Black Diamond is the quintessential watermelon of summer, which is equally liked by both home and commercial growers.
.When growing watermelons like “Black Diamond” you will need to make certain that the melons are ripe before harvesting these phones acquire the best flavor from your fruit. Don’t bother trying to thump the melons to check for ripeness, as don’t assume all watermelons change their tone because they become ripe; instead, try to find quicker noticeable physical changes. Keep track from the age in the watermelon plant, while using time from planting to determine if the watermelons may be ripe.
As they require a lengthy growing season, watermelons would be better started indoors approximately 3-4 weeks before the last frost in the season. Keep medium moist while awaiting germination. Additionally, watermelon seeds can have better germination rates with heat. Keep the soil between 80-90 degrees, utilizing a heat mat if necessary. Seed must start to germinate within 3-10 days.
. If your skin is smooth or shiny, then the melon isn’t ripe.
Once seedless start black diamond watermelon to germinate, lower soil temp slightly towards the mid 70s, for 1-2 weeks, also decreasing water. Thin to a single plant per cell or pot. Once the first set of true leaves has evolved, reduce waterings once more, but do not allow plant to get desiccated.
Scratch your skin from the melon using your thumbnail. Unripe watermelons have a soft enough skin that your particular thumbnail can make a tiny cut, but a ripe melon’s skin is thick enough that the nail likely will not likely cut it.
Harden plant by gradually exposing to outdoor conditions. Transplant to permanent site in late spring as soon as the last frost has gone by. If possible, transplant on an overcast day to lower wilting and make a more amenable environment on your young plant.
If you might have long, hot growing seasons, melons can direct-seed into garden.
Direct-seed 1 or 2 weeks after average last frost when soil is 70 F or warmer. Can plant at closer spacings if trellised. Thin to 2 to three plants per hill.
Choosing a Site
Prefers warm, well-drained, soil, an excellent source of organic matter with pH 6.six or seven.5. Consistent, plentiful moisture needed until fruit is regarding the size a tennis ball. Soil temperatures below 50 F slow growth. Sandy or light-textured soils that warm quickly in spring are best.
In many areas, successful crops require starting plants indoors, using plastic mulch to warm soil, and fabric row covers to safeguard young transplants.
For transplanting, sow seeds indoors ¼ inch deep in peat pots (2-inch square or bigger), two to four weeks before setting out. Plants should have 1 or 2 true leaves when transplanted.
Transplant at same spacings as direct-seeded crops – 2 to 3 plants per hill in hills spaced 3 to 5 feet apart, or one to two feet apart in rows 5 feet apart. Transplants are delicate and roots are responsive to disturbance. If you need to thin, use scissors. Keep soil intact around plant when transplanting.
Good pollination is critical to fruit set.
Plants for sale require consistent moisture until pollination. Once fruits are about the height and width of a tennis ball, only water if soil is dry leaving show indications of wilting.
If growing melons on the trellis, support fruit with slings made from netting, fabric, or pantyhose. Trellising improves air circulation around plants and can reduce foliar disease problems. Choose small-fruited varieties and reduce plant spacing.
For large plantings, leave a strip of rye cover crop every second or third row perpendicular to prevailing winds to safeguard plants from damaging wind.
To reduce insect and disease problems, avoid planting cucumber family crops (melons, squash, pumpkins) inside the same spot couple of years consecutively.
Do not let your melon plants get dried up throughout the growing season. They are not tolerant of drought. Additionally, use caution to never over-water plants as this can negatively impact the tastes and flavor at a later date. Keep soil moist however, not soggy.
Look with the curled tendrils that grow nearby the stem in the melon. These tendrils begin blow drying and turning brown because the melon ripens.
Lift the black diamond watermelon carefully and look with the ground spot on the bottom from the watermelon. On an unripe melon the location will probably be white or light green, while a ripe melon will have a very yellow or cream-colored ground spot.