Cutting the bark on a palm is not a good idea because it will never heal.
You can however "air layer" certain species of palms that have adventitious
roots. Chamaedorea sp are a good example of this. They can grow very
tall and eventually the heads may snap off. If they have adventitious roots
on the trunk, an "air layer" without cutting into the trunk can usually be done.
After the roots have begun to grow, the trunk is cut through and the much
shorter tree is then replanted.
"Ricky" <ricky at fawnridge.com> wrote in message news:bfkok0$ftr95$1 at ID-111423.news.uni-berlin.de...
>> "Seska Vedek" <seska_vedek at hotmail.com> wrote in message
> news:vhqvc67t5ot638 at corp.supernews.com...> > I have some palms that I have raised for several years. As they grow
> > the stalk grows thicker and this concerns me because the stalk at the
> > is much thinner. I know with rubber and jade you can get roots to grow up
> > on the stalk and eventually cut it away to have a separate plant. Is this
> > something that can be done with a palm? Thanks
>> No. You can not air-layer a palm tree. If you cut the bark it will never
> heal. Many palms will bulge in the upper trunk as they grow. This is a water
> retention feature that occurs during times of drought. If you can post a
> picture of the palm I might be able to ID it for you.