This is one of those times to cut your losses. Red Charm is listed from Hollingsworth for $24. The roots you have will seldom recreate eyes and crowns after wasting 2 or 3 years of frustration. The question you should answer is why the poor blooming of your plant. Normally, one can expect to see at least a blossom or two the first year with possibly a doubling each succeeding year. Too deep or too much water can stunt and eventually destroy the crown. In a warm climate, the soil does not chill very deeply in the Winter so the peonies must be planted very shallow. Just barely cover the eyes for the first year and do not mulch. I have had many peonies with eyes protruding above the ground in the Winter. Sometimes I cover them with an inch of sand for physical protection, not temperature.