Jobes crystals are easy and convenient to use. one application reduces watering and fertilizing needs for an entire season. feeds 20 plants in 6 in. pots.Slow release all purpose fertilizer as well as a great starter for plants, providing continuous fertilization for up to 6 months.
Patented water-storing polymer infused with the essential nutrients required by plants. formula 12-13-9. derived from calcium, ammonium, and potassium nitrate, ammonium sulphate, potassium phosphate, and iron glucoheptonate.
