I had to try and root some cuttings from a rare species of conifer this spring when I discovered my only plant broken off at the ground level. This plant,[torreya grandis] althought not a rock garden plant is very rare and slow growing. Imformation is not available in any of my reference books. So I am trying to root about 25 pieces that I could salvage using pumice and mist with about 60 degrees F bottom heat. After almost 3 weeks I pulled up one piece and saw callous but no root. Am I on the right track? Robert Aebel Vancouver Wa.