Purchased this orchid at the SB Orchid Show this past weekend. It's bare root with some sphagnum wrapped around the root ball. I am going to pot it. What would be the best media for it? Should I just leave the sphagnum around the root ball and add more or clean that off and try kiwi bark or kiwi bark mixed with sphagnum. When I've researched online I've seen either sphagnum or bark listed as acceptable media.