This 20-20-20 plant food is ideal for all potted plants. Works best when used as a soil drench combined with a foliar spray. Apply at every watering or at least every 3 to 4 days. New instructions for Houseplants and Succulents: Use as a supplement for Blooming & Rooting 9-58-8 on flowers and veggies when we get into the heat of the summer.