Problem: Stunted, pale or weak-looking plants. Solution: Before you can treat this problem, you need to figure out exactly what’s causing it. Insects may be attacking your plants, or you may be watering too much, or not fertilizing enough. Check both sides of the leaves, and look along the stems and branches for signs of trouble. Make sure the roots aren't standing in a saucer full of water. Read up on how and when to fertilize your plant, and feed it with a balanced plant food or a specialized plant food, if necessary.