The best time-release fertilizer I've found:
http://www.florikan.com/nutricote.html
They coat their time-release fertilizers with varying thicknesses of polymer, based on geographical weather area and they're guaranteed not to break down prematurely, up to 270 days.
I've done side-by-side comparisons with Florikote/Nutricote against Osmocote, Jack's ClassiCote, American Pride and Fox Farm. There's a remarkable difference in performance between them Florikote/Nutricote
It's not as widely distributed as the big names, but it's well worth it if you can find it. I purchased enough of it that they offered me a rep. position for New England/New York, to save on the exorbitant shipping cost.
