I also have the 25 gallon size which is better for melons and squash

15 gallons is the minimum size for squash. I also have the 25 gallon size which is better for melons and squash. 15 gallon size is good for tomatoes and peppers. Recommend mulch on top to manage soil moisture. Air pruning technique seems to work well. Quality construction and materials. These have held up well to refilling and moving around while full of soil.

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