hybrid teas and propagation
I'm planning to take cuttings from what I'm pretty sure is a hybrid tea climber called Aloha. My questions are probably propagation 101, so if you want to point me to a good book I'll be happy to explore it. But here are the questions:
1) Are hybrid teas necessarily grafted onto a rootstock?
2) If so, would a particular variety of HT, say Aloha, have a fixed type of rootstock & and parent plant (or whatever you call the main plant you graft onto the root)?
3) If I root and plant cuttings from the branches, what am I getting? Is it a variety that the breeder started with way back when he bred Aloha?
Thanks for your help.