I live in Southern California and am going to attempt to graft a rainbow shower tree (Cassia x nealiae). I am wondering what type of tree to use for rootstock. Any input would be helpful as I am a complete novice. I am transporting the cutting from HI. (the USDA said it would be okay)
I may have answered my own question. I'm thinking of using a Gold Medallion Tree (Cassia leptophylla). Any opinions?