Grow potatoes right on your home balcony! Three durable polypropylene grow bags come with reinforced top rims and drainage holes. Add a few inches of soil to the bottom of each bag, and place up to three seed potatoes on that soil. Add a further 3-4 inches of soil. When the plants are 12″ tall, add 6 inches of soil to the bags, so the plants are half buried. Once they are 12″ above the soil, repeat this process until the bags are nearly full. Keep them well watered, especially in dry weather. Each bag holds 40L (42 quarts) of soil. (3 bags). Filled bags stand 45cm (18″) tall. Great activity for kids of all ages.