"BigSteve" wrote in message
...
I am lead to believe that most of the in shell nuts and some fruit are
irradiated that you buy from shops.

This then means that they cannot be grown, as they are technically
dead.

But how do I know what has and what has not ??

Most nuts and fruit are not irradiated in the uk. However you might have
trouble getting most types of tree fruit and some types of nuts such as
almonds to grow well because they may have come from grafted trees i.e. the
root of the tree is a different variety from the top. I have grown Hazelnuts
and walnuts from bought nuts but I moved before I saw them fruit (or nut)

Gill