Watermelon Growing Info

Learning Download: How to Grow Watermelon
When to Plant:
Sow after danger of frost has passed. Soil temperature should be above 65°F. Start transplants 2 weeks before planting date.
Diploid and Triploid: 
Diploid watermelons can self pollinate themselves and tend to have watermelon seeds. Triplod, also known as seedless, watermelons have no seeds and need pollinated by diploid varieties.
Heavy feeders. Apply 3 lbs. of 5-10-10 fertilizer per 100 square feet. Side dress watermelons with fertilizer (33-0-0) when vines start to run and again when fruit is developing.
Location:Planting Depth:Soil Type:
Full Sun1/2-1″Well drained, fertile, pH 6.0-7.5
 Seed SpacingRow SpacingSeeds per 100′Yield per 100′Seeds per Acre
18-36″6′6670 Fruits5,000


Watermelon Seed Count 
1 Ounce: 400 Seeds
1/8 Pound: 800 Seeds
1/4 Pound: 1,600 Seeds
1/2 Pound: 3,200 Seeds
1 Pound: 6,400 Seeds
* These are average watermelon seed counts.  Varieties can vary.
1 Acre = 43,560 square feet, or 435’x100′

Weight Conversion:
1 Pound = 16 Ounces