AGRICULTURAL NEWS - Watermelons, particularly seedless varieties, require a warm temperature (25°C to 35°C) to germinate.
The good news is that you can give the seed a helping hand by pre-germinating it early in the season when the weather is cooler.
Whether you intend planting the seed directly into the soil or into seed trays, pre-germination is worth the effort as it gives you a quick, uniform start.
This does not apply to hybrid and seedless watermelons, however; these usually go into seed trays in a warm environment.