Steve from Fenton, Mo writes
In the Pennington 22-0-11 50% Uflexx 3% Turf Fertilizer the Uflexx means that the fertilizer is flexible, that 50% of the urea is immediatly released into the soil, and the other 50% is slowly released. The FE stands for Iron, so there is 3% Iron in this fertilizer.
Answer last updated on: 08/31/2016