"Sue" wrote in message
...
Thanks for your replies. You've given me plenty to think about. In my
experience silver birch roots seem to grow quite near the top of the
surface
of the soil. We did have one in a previous garden and we found the
encroaching roots to be a problem in near-by flower borders.
However the idea of planting in the ground and pruning seems a good one as
it would get over the problem of watering.
Maybe we should buy another tree and try both methods!
By the way, can't help noticing the relevance of our names. Any advance on
Hazell or Wood.....?


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Well, there was 'Poison Ivy' in Coronation Street' many years ago if memory
serves me correctly.

Cic.