Maxicrop 2003 Liquid Seaweed Plus Iron Fertilizer, 2.5-Gallon For Acid-Loving Plants-Water with solution of one capful to one gallon of water every week For Acid-Loving Houseplants-Water with solution of one capful to one gallon of water every week For Lawns-Spray solution of two capfuls Soluble potash (K2O): 1.0% Iron (Fe): 2.0%