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National Watermelon Month

Summers are filled with picnics and barbeques that often include watermelon. You may have enjoyed eating this summer treat but struggled to politely dispense of the seeds. Seedless watermelons have eliminated this problem and varieties like All-America Selections winner Harvest Moon can be grown in your own garden.

You may be wondering how they can grow seedless watermelons if they don’t produce seed.

Seedless watermelons are the result of crossing complex hybrids. The seed from these crosses are used to grow seedless watermelons. You’ll need to maintain warm moist soil to germinate the seeds. Keep soil and young seedlings warm by covering plantings with floating row covers or cloches.

And if you prefer the seedy varieties, try collecting and sprouting the seeds. Sprouted watermelon seeds are a good source of protein, B vitamins, minerals and fat.

 A bit more information: Leave row covers in place until the plants form female flowers. This will increase growing success and reduce the time to harvest.

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Jan. 10, 2026
Greater Des Moines
Botanical Garden

Des Moines, IA
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Jan. 28, 2026
FREE WEBINAR: 
Past, Present & Future of Mitchell Park and its Conservatory, the Domes  
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Feb. 13 - 15, 2026
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Madison, WI
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Feb. 18, 2026
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Getting Started Growing Vegetable and Flower Gardens
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