2X MORE VALUE: Get more with HiThrive Fern Plant Food. Its 16 oz makes 32 gallons and 32 oz makes 64 gallons of fern liquid fertilizer, delivering long-lasting care for indoor and outdoor live fern. FUELS GREENER GROWTH: Packed with nitrogen for vibrant fronds, phosphorus for robust roots & potassium for resilience, our fern fertilizer indoor & outdoor supports steady, lush, greener growth. SUPPORTS PLANT RESILIENCE: Boosts your ferns' ability to thrive in varying conditions with this fern tropical plant food. This house plant fertilizer strengthens their root systems & overall vitality. ENHANCED FORMULA: Enriched with calcium, magnesium, iron, copper, manganese & zinc, our fern tropical plant fertilizer strengthens roots, improves foliage density & promotes intricate frond textures. FOR ALL FERN VARIETIES: This fern plant food outdoor & indoors is ideal for Boston Ferns, Maidenhair, Staghorn, Bird’s Nest, and other indoor ferns, ensuring consistent, healthy growth for every type. EASY APPLICATION: Just mix this indoor plant food and apply directly to the soil. Use ½ capful of fern outdoor & indoor plant fertilizer per quart or 2 capfuls per gallon of water every 1-2 weeks. Fern Fertilizer