Controlled Release Bromeliad, Orchid and House-Plant Food is an easy way to fertilize your houseplants because one application can last 12 months. The formula is one of the only controlled release fertilizers which is safe for all houseplants and orchids. The formula requires no mixing so you can just sprinkle and go. The package includes easy application rates. In addition to a great source of nitrogen, phosphorous and potassium, this product includes essential minor elements to combat nutrient deficiencies. Easy to use Lasts up to 12 months Slow release NPK ratio is 11-11-15 Safe for use in conjunction with Better-Gro Orchid Fertilizers Convenient resealable pouch