Do hydrangeas need to be fertilized, and if so, what is the best type to use?
I have (3) three-year old Endless Summer hydrangeas (macrophylla Bailmer). Currently, (Apr 27) there is new growth/buds on both old and new stalks. Someone told me that if they are given fertilizer (Miracle Gro, etc), that it will promote foliage, but not necessarily more blooms. So I thought I might ask what others do to their plants.
In the past, I’ve just worked in some compost – in the spring and again in the fall. They bloomed, not profusely, but they haven’t grown very much (height & width-wise). They are east facing and get morning sun (until noon) and afternoon shade. I (like others) want those shoulder-height border hedges of hydrangeas. :)