Watermelon Seeds

Extra sweet, crisp and delicious seedless melons are now the preferred types for consumers. Novelty fruit such as yellow watermelons are growing in popularity. 

Average Seed Count:

30 per packet; 500/oz.; 5,000-15,000/lb.

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Watermelon Seeds

Required Signed Watermelon Waiver

A completed watermelon waiver is required before your order can ship!

Due to the potential liability of Watermelon Fruit Blotch (WFB), Gummy Stem Blight (GSB), Cucumber Green Mottle Mosaic Virus (CGMMV) and Anthracnose diseases with watermelon seed, we require a watermelon waiver form be signed and returned for all purchases of 1/4 lb. or 500 seeds or more of seeded varieties and for all purchases of seedless varieties and seedless pollinators.

A new disclaimer must be signed each year. Signed disclaimers from previous years are not valid for the current sales year.

No orders for watermelon seed will be accepted that originate from or ship to the state of South Carolina.

If you do not send in the release with your order, the form will be mailed to you. If we do not receive the completed and signed release within 30 days, your order will be canceled from our system.

Download Harris Seeds' Watermelon Waiver

Return your form: E-mail customercare@harrisseeds.com, FAX (877) 892-9197, or Mail (Harris Seeds, PO Box 24966, Rochester, NY 14624)

First cultivated in northern Africa, the watermelon is a warm weather crop, requiring hot days and warm nights to fully mature, most particularly in the case of the larger varieties. Start seed indoors at 85°F. soil temperature, 3-4 weeks before setting out. When is a watermelon ripe? There are several schools of thought on this subject. Many believe that the surest way to know is when the fruit makes a dull, hollow sound when tapped. Others, however, recommend looking at the bottom surface of the fruit. When the “ground spot” has turned bright yellow, it’s ripe and ready for picking. Still others insist that the twisted tendril nearest the fruit must have turned brown.

Red fleshed watermelons are the traditional favorite, but many customers are excited to try yellow and orange fleshed melons, especially when you offer samples at your farm stand. While customers still purchase seeded watermelons, many have discovered the convenience and great taste of seedless melons. Fortunately, today’s seedless watermelons can be raised successfully in both the Northern and Southern parts of the country. Read and carefully follow the cultural directions on this page for best results.

  • Plant seeds 1/2-1" deep into Jiffy Pellets or sterile mix in Jiffy Pots 
  • Ideal soil temperatures are 75-80º F. 
  • They should germinate in about a week if kept moderately moist
  • Set plants into the field after the threat of frost has passed
  • All melons prefer sandy loam soil with a pH 6.0-.8 and set the best yields when beehives are added to pollinate flowers. 
  • Maturity dates are from transplanting and should be used only for variety comparison

  • Seeds need a soil temperature of at least 90°F for germination, so make sure media is heated before planting and maintains a 90°F temperature for 48-72 hours after seeding, or until germination begins. 
  • After germination begins, reduce soil temperature to 80°F and water only as needed for the first week. 
  • Once the seedlings are established, temperature and watering may be adjusted to achieve sturdy plants.
  • You will need to purchase a pollinator for use with the seedless varieties. To ensure proper pollination it is recommended that you plant one pollinator for every three seedless plants. 
  • Plant in the row with the seedless variety. Tests indicate that bees will tend to work up and down the row, rather than from one row to the next. Planting in this way will help to improve pollination, thus increasing yield potential.