In message , Moonraker
writes
On 22/05/2011 11:11, 'Mike' wrote:
We have Holly coming up which has seeded itself here, there and everywhere.
Some of the Holly in the hedges has berries. The new ones coming up, any way
of telling which ones are going to berry up?

Mike

I don't think so unless you can sex it at an early stage. I think that
even professional growers have problems, one such was giving away small
holly trees, they were all male of course, I cannot see them growing
the male ones purposely.

In principle one could produce a DNA test for this purpose. But I don't
think anyone has actually done this.
--
Stewart Robert Hinsley