it is, but there are better...

i use miracle gro (wait, just listen) 24-8-16 all purpose plant food. no trace elements/additives. excellent resutls with this product.

if that stuff you got is time released, DON'T USE IT!!!! if it is water soluable, start at 1/4 strength and work your way up to full over the course of 4-5 feedings.

hope this helps babe

love, brooke