Potato & Squash Container Garden, Black Fabric, 15-GallonsSmart Pot 1 pack 15 gallon black fabric potato and squash container grower. patented, soft sided and multi purpose, smart pots are the original aeration container for growing plants. each provides air root pruning, excellent drainage & release of excess heat in hot weather for superb, fibrous root systems. for growing vegetables, flowers, herbs & fruit. lasts for years and can be left outside all year long without worrying about winter damage.