What is 5-10-5 fertilizer not angelic for.?
Answers: Anything that you want to be green/look healthy ABOVE the surface.
The first 5 represents the nitrogen in the product. So if you own grass, or above surface plants that you want to see green up/grow...that's not enough nitrogen.
In my experience You would be better off near a more evenly balanced one like a 12 12 12 or 13 13 13. Of course if you enjoy a specific problem requiring more phosphates,then you are fine.