MARPHYL marine phytoplankton is ideal as an outdoor and indoor plant fertilizer, it's an excellent vegetable fertilizer, houseplant fertilizer, and lawn fertilizer. MARPHYL fertilizer for indoor plants and outdoor plants, grasses, trees, flowers and more, provides an astounding array of nutritional elements. Our liquid marine phytoplankton soil enhancer is an organic, all purpose plant food that is harvested 100% naturally, it's vegan, non-toxic, non-GM and sustainably made.
High in potassium, nitrogen, and phosphorus as well as calcium and magnesium for lush foliage. Simply mix a 1:20 ratio of our liquid plant fertilizer with water, once in the water, stir, and then pour onto the plants, perfect for use in small and large sprayers, recommended use is every two weeks.,MARPHYL marine phytoplankton is ideal as an outdoor and indoor plant fertilizer, it's an excellent