Controlled release flower fertilizer can be applied any time of year,but for the best results apply in early spring so your plants receive the maxium benefit.
Content:
Total N 13% Phosphorus
pentoxide (P2O5) 13%
Nitrric N 5.5%
Potassium oxide(K2O) 13%
Ammoniacal N 7.5%
Sustained release period 6 month http://www.aminoacidsagrochem.com