If the new canes are coming from below the bud union or from the root
stock itself, remove them now. They will divert nutrients away from the
desired growth, which will eventually die.
If the new canes are coming from the bud union (the knob that forms
where the desired variety was budded onto the root stock) or from above
it, keep them. When you do your dormant pruning, keep them; and remove
an older cane for each kept new one. This is how you renew your plant.
In any case, if the new canes are poorly placed (e.g., crossing each
other, growing towards the center of the plant instead of outward),
remove them now. In this case however, if they are from the bud union
or above it, you might head them to a bud that will produce growth in
the desired direction instead of removing them entirely.
i'm not sure of what you
are saying here if the growth
is coming from above or
below the graft union.
if it is from below the
graft union trim it off
as soon as it appears.
from above, follow the
advice Mr Ross and Mr Boson
if you want to do some
grafting of your own, read
up on it and give it a try.
it's fun. :) free root stock
if you get those shoots
to root themselves after
trimming them off. and
usually some free grafting
shoots when pruning later.
not all efforts succeed,
but those that do are very
satisfying in the primal
sense of having created
something like Dr. Frankenstein
but improved since it looks and
songbird (ok, ok,
i have an odd sense of humor :)
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