Tomatoes and Peppers are the most challenging to grow with other plants because they spread out substantially as they grow (thus the packaging of fewer seeded pods in some tomato/pepper kits). Other plants may not have enough space to grow once the tomatoes and peppers begin to mature. Also some of the tomato varieties that we offer will reach 24″ in height and are made for tall AeroGarden models only. These varieties should not be grown with other plants as the light hood would have to be raised to accommodate their height and the other smaller plants would not receive sufficient light. Sweet Bell Peppers also fall into the 24″ category, so they should not be grown with other shorter plants.