Feeding your collection of indoor plants just got a whole lot easier and a lot more eco-friendly. Our gentle 4-3-6 (N-P-K) Plant Food formula provides all the essential nutrients your houseplants need along with trace micronutrients for a well-rounded plant diet. The bubbling action of our tablets make them an easy, fun and climate-friendly way to feed your plants. EASY TO USE! No measuring, no mixing, no mess! Just drop in water and feed. Voila! Happy, healthy houseplants : )