Chris wrote:
I have a Cordyline Australis and a Yucca in a large, netted outdoor aviary.
Both have grown over 8 foot tall and the top leaves are now penetrating the
roof netting. Is there any way of safely shortening them? If not, what are
my chances of digging them out and replanting them outside of the aviary,
successfully? The Cordyline is producing another head of leaves from the
base, what should one do with these? Leave them, remove them, or is it
possible to remove them as a separate plant and grow it on independently?
Thanks.
--
Best Regards,
Chris.

Warning: this is not science, just personal experience.

I once cut the top of an outdoors growing yucca - by accident, I won't
expand. It looked terrible for a while, but it grew back (slowly)
another head of leaves from the side of the stump that was left, and a
few years later actually ended up looking more interesting (that's my
version, and I'm sticking to it).

Cat(h)