Extend applications three to four inches beyond the drip line for every foot of plant height. For example, fertilize a three-foot hydrangea 9 to 12 inches beyond the drip line. Keep the fertilizer ...

There are many kinds of natural fertilizers available that contain seaweed extract and  kelp meal, which are full of micronutrients like boron, zinc, manganese, copper and molybdenum.

A granulated, balanced fertilizer like 10-10-10 NPK or one specially formulated for roses can be scattered evenly at the drip line or outermost branches of the rose bush. Use about 1/4 cup of 10 ...