A nitrate / ammonium nitrogen system is more efficient in warmer weather than the traditional high nitrate pansy fertilizer. The result is a potentially acidic product that will lower media pH over time.
Jack's Professional Fall Pansy FeED also contains J.R. Peters exclusive FeED iron chelate system plus additional magnesium and boron which is necessary to produce a consistent, high quality crop. At 17% nitrogen content you also use less product to achieve your desired feeding rates than the traditional 15% products.