What methods are best for grafting branches of a Pencil Cactus together? (two branches from the same plant) Can I simply tie them together and expect to fuse? Would Pencil Cactus branches fuse perfectly, like cactus, or be like bark with it not totally fusing? Are there any other plants that can be successfully grafted onto a Pencil Cactus? And can Pencil Cactus be grafted onto other plants? For example, could I take a flower from a real cactus (yes, I know Pencil Cactus isn't really a cactus) and expect them to come together? Are there any close relatives of the Pencil Cactus I could try, if I want it to have more flowers? And if there are any plants that could survive winter which it could be grafted onto, would the plant as a whole be winter resistant if the base is, or would the Pencil Cactus portions still die in winter if left outside? Also. What temperature should I bring the Pencil Cactus inside as? I want to keep it outside as long as possible, but want to bring it inside before it gets too cold. If portions become less green, but don't shrivel, should I be worried? How deep are the roots, compared to height? And can I transplant it into an oversized pot and expect it to live? Thanks.