Q.I Have A Few Questions About Propagating Dracnea Marginata, Is Anyone At Your Group Familiar With This Plant?
In a nutshell I’d like to ask about pruning and regrowing canes still on the plant. 1. If the main stem already has three vertical shoots growing out of it all with a full canopy, if you cut off the heads of those three, will the sub canes grow new sprouts or does it only work on the main stem? 2. Same concept if you only prune one of the sub canes because its uneven with the others will it grow it’s own sub canes or does the whole plant need to be headless to regrow?

Certified GKH Gardening Expert
You can lop off the whole top but be sure some nodes are included. Or you can just cut back one of the stems. They should all branch.
https://www.gardeningknowhow.com/houseplants/dracaena/how-is-dracaena-propagated.htm