Jack's Professional Petunia Feed Plus Magnesium Fertilizer 20-3-19 Fertilizer (25lbs.)

This 20-3-19 petunia feed was formulated in response the newly emerging iron inefficient plant material. A proprietary blend of iron chelates are used to increase the availability of iron over a broad range of pH. It contains double the iron found in typical peat like formulations. Iron is derived from three chelate sources EDDHA, EDTA and DTPA to keep it available over a broad range of growing medium pH values. Also contains additional magnesium for optimum crop performance. Low phosphorus level helps prevent excessive elongation. High nitrate nitrogen, moderately high potential acidity and no urea. Not recommended for geraniums or other iron sensitive crops.