- Put a few shovelfulls of composted manure or good compost in the planting hole.
- Do not plant until the soil has warmed to to 65°F (18℃ ).
- Watermelons are real heat lovers and do very well when grown on black plastic mulch. If direct seeding, plant 5-6 seeds about an inch (2.5 cm) deep in an 8-inch (20 cm) circle.
- Keep soil free of weeds by shallow hoeing or with a layer of mulch.