Watermelon is an annual summer fruit that thrives in warm weather. You can easily grow it in your home garden to enjoy fresh, delicious harvests. If you want to learn the right time and place to plant watermelon, keep reading to explore all the essential details.
When Is the Best Time to Plant Watermelon?
It’s recommended to plant watermelon from late spring to early summer, specifically once soil temperatures reach at least 21°C (70°F).
If you live in colder climates, start the seeds indoors 2–3 weeks before the last frost date, then transplant the seedlings outdoors about two weeks after they begin growing.
Where Should Watermelon Be Planted?
Below are the ideal environmental conditions watermelon needs to grow successfully:
Soil
Plant watermelon in fertile soil rich in nutrients. It’s best to amend the soil with plenty of organic matter. Watermelon grows well in sandy loam soil and requires excellent drainage.
Soil pH
Watermelon prefers soil that is slightly acidic to neutral, with a pH between 6.0 and 6.8.
Light
Watermelon needs full sun exposure to bloom properly and develop sweetness. It can tolerate partial shade in very hot climates, but excessive shade will reduce fruit size and yield.
Temperature and Humidity
Watermelon loves warm climates. The ideal growing temperature should not drop below 27°C (80°F).
It can grow in humid or dry climates as long as soil moisture remains sufficient.
Important Tips for Growing Watermelon
- Watermelon plants require a large growing space—each plant may need up to 2 m². Choose a wide area away from other crops.
- Plant watermelon on raised beds or hills to improve drainage and increase sun exposure.
- Raised hills should be at least 1.5 m wide, with 60–90 cm spacing between each plant. Regular row spacing should be about 1.8 m.
- Avoid planting watermelon in areas exposed to strong winds or salty winds.
- Watermelon can be planted in large containers, but the fruits will be smaller. Make sure there is plenty of ground space to allow vines to spread.
- Apply a 2.5–5 cm layer of mulch around the plants when vines reach 15–20 cm in height to suppress weeds and maintain soil moisture.
