"Bob Hobden" wrote in message
...

"Rupert" wrote
I recently read that Kew recommend planting trees in square holes and
adding no nutrients, which seems to go against what I have always
believed.

The square hole is thought to help the roots break out of their circular
path (as when in a pot), they grow out and hit a sharp corner then have to
start entering the soil instead of continuing to go round and round as if
still in a pot. That's the current theory.

--
Regards
Bob
In Runnymede, 17 miles West of London


Thanks' for the info. That explains why some folk are using square bottomed
pots:-)
So do you reckon the same theory applies to shrubs and perennials?