This is our standard all around fertilizer we use at the nursery for pretty much everything.  The controlled release fertilizer has 5 to 6 months of constant feed at an average temperature of 70° (F).  Of course in warmer conditions the time release is much faster shortening the life span to 3 to 4 months.  It can be incorporated in any potting media at a rate of 1/2 to 1 teaspoon per 6-inch pot or broadcast at a rate of 2 to 3.5 ounces per square yard or cubic foot of mix.