Beginner Gardening: Help restoring and caring for peonies, 1 by ispep1012

ispep1012 wrote:
This year I have recently put alot of work in my yard and landscaping. Since doing all this hard work I much more appreciate what I have around and want to care for things more & keep adding stuff. Anyhow I have 4 large sets of peonies, 2 in full sun & 2 in partial. For several years the actual flowers will rot off the stem somewhat quickly and will have discoloration over the leaves. The one in full sun is the worst (see pic). I have never done anything with them, just left to do there thing with the occasional get the weeds out.

So question is what could be going on with my peonies. How can I care for this and if anyone would care to take the time to explain what I should do yearly to these that would be a great help. I also might jump on here with some more questions about some of my other plants and ant problem so I hope I dont annoy anyone. I know I can google things but sometimes its nice to be interactive with what your doing and get some advice from people that have experienced it.

Thanks, Rick