In article ,
anton wrote:

If you buy a grafted walnut of a named variety, it will produce
nuts much faster. The nuts will also be better in one way or another than
a
seedling walnut. However, the young tree will
cost quite alot.

And quite likely be more short-lived. Grafting is a common cause of
premature tree death.

You mean it might not live for its full allotted span of thirty
score years and ten?

No, I mean that it might reach the height of 20' in 30 years, and then
blow over in a gale. If you are lucky. If you are really unlucky, it
will blow over when it has got big enough to cause serious damage.

The point is that grafting necessarily introduces a weakness just
where you don't want it. Sometimes, the two plants bond well. With
some combinations, the join always remains weak. And, in a few cases,
the graft appears to join perfectly, but lets a heartwood fungus in,
and so the tree rots from the inside, invisibly.

Take a look at what Bean says about grafting!


Regards,
Nick Maclaren.