Different types of plants can be grown in one GrowBox as long as the plants grow to similar heights at about the same rate. Don’t let a large tomato vine choke out smaller salad greens or onions. It’s best to plant and assortment of salad greens, or varieties of herbs, peppers, squash or flowers. Choose plants from the Planting Guide that recommended the same number of plants per GrowBox.
Also see Setting Up And Planting Your GrowBox