Definitely you have to plant tree peonies different from herbaceous. A herbaceous plant is planted entirely under the ground. The tree peonies is a shrub and the stem will be above ground, Dont cut the stalks off on the Tree peonies. Next years growth will come from these stalks. I plant tree peonies deeply to get more stems. Since these varieties are Japanese I assume that they will still be on a graft. If so do plant it deeply. I like to have 6"of stem under the ground.

Kinkaku [correct name is Souvenir de Maxime Cornu] is a nice flower but not a good garden subject. The flowers will not show up on the plant. The buds form about even with the outside of the foliage. As the blossom opens it get heavy and bows down and opens in the center of the bush. No one will see it. However, this flower is beautiful in a vase. Taiyo[Emperor] is a good red tree peony. Renkaku [Flight of Cranes] is a nice white. I have not seen the other two.