Plant fertilizer or plant food is 100% organic kelp and seaweed extract that is infused with rosemary oil to act as an antioxidant and helps to repel insects from plants. This product is completely natural and works well on all plants and growing mediums. Kelp and seaweed help promote strong and healthy plants by providing them with vitamins and minerals. A little will go a long way with this stuff! It also comes in a 2-ounce bottle with a dropper.  Check out our Plant Care Bundle to complete your plant care kit with neem oil and Japanese Higurashi pruning scissors!