Fertilizing your pond plants has never been this easy. Aquascape Once-A-Year Pond Plant Fertilizer 11-3-14 (NPK ratio) is a specially designed time released formula that was created to optimizes the growth of aquatic plants. Once-A-Year Pond Plant Fertilizer is formulated to feed for 180 days, with no excess nitrogen to stress the plant and low phosphorus to reduce the risk of algae growth. The high potassium in the formulation encourages incredible flowering for aquatic plants. Both the capsule and granular are perfect for fertilizing waterlilies, lotus and other pond plants. This once-a-year fertilizer will maximize plant growth and increase flower production for the entire year