PLANTING
If you live in warmer climes, you can direct sow seeds outdoors, but wait until the soil temperature warms to at least 70 degrees to avoid poor germination.
Watermelon vines are very tender and should not be transplanted until all danger of frost has passed. (To be safe, wait at least two weeks past your last frost date.)
If you are in a cooler zone, start seeds indoors about a month before transplanting.
Amend soil with aged manure, seaweed, and/or compost before planting. Watermelons are heavy feeders.
Watermelons prefer a soil pH between 6 and 6.8.
Growing the vines in raised rows, known as hills, ensures good drainage and will hold the sun’s heat longer. Space the plants about 2 feet apart in a 5-foot-wide hill.
If you’re growing in rows, space 6 feet apart by 6 feet apart.
Watermelons like loamy, well-drained soil. Handle them gently when you transplant.
After you transplant, cover the plants with row covers to keep pests at bay. You’ll remove the row covers when you see both male and female flowers on the vine.
Find even more tips for planting watermelon in your home garden.