Typically this is a rather easy process for running type bamboos. One simply digs up a section of rhizomes then plants it in a new spot. When the buds break dormancy, they shoot and begin growing, and in several years time will fill in the area with new bamboo
But what about propagating clumping bamboo from rhizomes? Typically to propagate a tropical clumping bamboo as division is taken from the parent plant then replanted elsewhere where new bamboo is wanted. Sometimes the culms of that division die, and new growth emerges from the stored energy within the rhizomes. Nothing wrong with that, as the end result was still produced.
However, an interesting thing happened last year while digging divisions on the bamboo in my yard. I tossed aside a thick chunk of rhizome, thinking it trash. A few weeks later while inspecting my bamboo for new shoots, I noticed that chuck of rhizome with a small, pencil sized shoot growing from it. Pulling it from the leaf clutter, to my surprise I noted another bud developing on the rhizome as well. This rhizome also had developed a few root hairs, so I immediately planted it in some potting soil. The shoots developed into two, three foot culms. Last month I potted this new bamboo into a larger pot, and was further amazed by the amount of new root growth that had developed. I’m really anxious to see how big this years shoots will be!
So there is yet another method by which bamboo can be propagated. I’m pretty certain the species is Bambusa Mutabilis, but it could also very well be Bambusa Dissemulator. Only time will tell which bamboo it it. I’ve included two pics and short video documenting my find.
YES, however often the divisions with rhizomes die because they rot at the point were they are detached from the clump. Loss is high unless fungicides are used and the cut is very neat and minimal so as close to the remaining rhizome as possible, even beter to take a small section of the old rhyzomes with the removed one. The small section of old ryzome rots away mostly but the rot usualy stops before it gets to the culm ryzome you are removing. Best to work on an overcast day with high humidity and timing is also vital. Bamboos have a main growing season when they send up culms, the time to make rhizome divisions is just before this happens. Or you can prepare culms the year before by topping a year or two year old culm and waiting for the dormant eyes to start bursting into growth the next rainy season before you remove. In any case I plant the removed sprouting culm with rhizome and roots two dormant culm eyes deep. So if there is any rotting in the rhizome those buried eyes on the culm are an insurance as they will sprout and root before the rot destroys the division completely. When making the division water well and very carefully expose the ryzome matrix, a strongish jet spray of water works well for this. You definately want to see where you make your cuts. Try not to damage the fine roots. More reliable way but slower to get a new clump established is to partialy remove sprouted mature culm eyes with a very sharp knife and light hammer, pack with moss and marcot, roots very quickly establish. This way you can do many many even from a single mature culm.
Great info, thanks for sharing this!