Hi Cheryl! We are almost neighbors as we live in Clear Lake! We do not keep many plants in pots as they stunt the growth of the plants and it is hard to keep that many watered. We dug up most of our plants, but we had around 40 that were too big this winter when the freezes started coming...so we cut them completely up as a way of saving them and we are really glad we did.
Basically what we did...using yours as an example, is we would cut the top 4 branches off where they branch out giving you very nice cuttings (there are plenty of writings on the specifics of doing this properly). Then we would cut the "Mid-section trunk into 3 ft chunks, leaving 4-6 inches of the root ball sticking out of the ground. Out of the 40 we cut up, we only have 2 that didn't re-grow..and the trunks on all of these were totally frozen....oozing a black goo out of them..and they are growing new growth.
I am not advocating you cut your plants completely up...I am just sharing because we have never tried to root some of the things we have now, successfully rooted. We took some cuttings that were 6ft tall with 4 main branches. We have rooted the mid-section trunks, and the root balls are now generating what will be plumeria shrubs. Our main plant was 10ft tall and 14ft wide and the root ball on it has 12 main branches and is growing out of control.
I am making a post to show some of this..It has been a VERY time consuming project! lol
