Check the last estimated frost date for your area here: https://www. almanac. com/gardening/frostdates.
Mix components like sand and perlite into your soil to make sure it’s well-draining. If you can squeeze a handful of soil and water runs out, the soil is too wet for seedless watermelons to germinate.
Heat mats can be purchased online or at your local gardening store. Cover the mat with a growing chamber if you want to retain the heat. Growing chambers are large plastic coverings that sit on top of your mat to help incubate your plants.
Sow both the diploid and triploid seeds at the same time so they can germinate and grow simultaneously.
Avoid using cold water since it could affect the overall temperature of the soil.
Cover your tray with a thin poly sheet to trap the moisture in the soil. Poly sheets can be purchased at your local gardening store.
If you only placed 1 seed in each cell, you don’t need to thin out your seedlings.
True leaves will look round with multiple lobes. Seedlings with more than 4 true leaves are susceptible to transplant shock, which could reduce your yield and melon size.
Always plant at least 1 diploid seedling for every 3 triploid seedlings you have. If you’re planting your melons in separate rows, space them 6 feet (1. 8 m) apart from one another.
Avoid using nitrogen-rich fertilizers since these could make your fruits have a hollow interior.
Avoid or limit using pesticides since they could harm pollinators.
Don’t water during the last week before the fruits ripen since overwatering can make your melons taste bland.
Flick the melons and listen for a deep, solid thump noise. If the sound is high-pitched or tinny, your melon isn’t ready. [14] X Research source
Cut your watermelon and freeze the pieces for up to 12 months. Put watermelon in a blender with ice to make a watermelon slushie to cool down on a hot summer’s day!
