Watermelon Black Diamond
$2.99
- Plant 1” deep in fertile, well-drained soil.
- Transplant strongest seedlings into mounds 2 feet wide--planting on hills/mounds ensures roots stay warm and soil drains.
- Fertilize with nitrogen-based fertilizer until flowers form, then switch to high phosphorus/potassium (such as seaweed).
- Mulch around base of plant for weed control/moisture retention. Keep soil moist until fruit reaches full size--stop watering while fruit ripens.
- Watermelons will be ready to harvest after 70-90 days from sowing. Tap fruit and listen for a dull thump to know when the fruit is ripe. Other maturation signs include a dry stem near the fruit’s base.
