permaculture

["Jasminka" <jasminka@iskon.hr>]

I have a walnut tree on my hill.
I don't know how old the tree is. How can I find out?
What is the lifespan of walnut tree?

I also have an old orchard (old trees, some ten years without pruning and
quite overgrown in wild blackberries and , but very alive). There are some
"oldfashioned" apples and pears and I would like to recover them if
possible.
How to recover an old fruit tree?

Any similar experiences?
(it is autumn where I live now, in a month or so, quite cold winter.. as a
reference to what can be done in next month or two)

Thank you
Jasminka