Amaze your friends and neighbors by growing square watermelons using this box and your EarthBox or other DIY sub-irrigated (aka self-watering) grow box. You can be the hit of your next Fourth of July or Labor Day picnic.
This Instructable shows you how to shape the watermelons. This Google search shows you how to grow them wherever you have six or more hours of sunlight, no tilled earth necessary.
Via: Apartment Therapy

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