Quote:
Originally Posted by PureHarvest
If I may, I would tell you to feed shrubs and perennials right before their active growth stage, i.e. Spring. And then at 1/2 the rate for spring in early fall.
For example, if my azalea blooms in late April I'd be feeding it in March so it has time to get into the soil from rain and have time for microbes and chemistry to do the work of making the nutrients available. I pretty much feed all my shrubs and perennials in March which is also when I cut them all back (unless it is a spring blooming shrub) while they are still dormant or without new growth yet. Other examples would be roses, crape myrtles, spiraea, abelia, hydrangea paniculata etc.
If you are not using organic based ferts, you might put it on a little later because it is immediately soluble and could be gone before the plant can use it all.
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Thanks! I have some hungry azaleas,crepe myrtles,camellias and tons of other blooming shrubs. Hundreds,probably! I'm pretty sure they haven't been fed since the late 1980s when the original owners of my place moved.
I will take a day to fertilize everyone soon, after my garden gets planted.