Fertilizing Over Mulch Question
We have areas that have been landscape matted (weed matted) and then mulched over. I've never fertilized and the plants (a variety that I don't know the names of, azaleas, a lilac tree/bush, and rose bushes) are getting peaked.
What would be a good fertilizer to use that will reach down past the mulch (beauty bark) and thru the matting?
I'm not even a novice so please don't assume I know gardening terms
Any and all tips and advice will be appreciated!