The message
from "Sue da Nimm" . contains these words:
"JennyC" wrote in message
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"Jaques d'Alltrades" wrote in message
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The message
from Iain Douglas contains these words:

I've an oak tree about 25' tall growning at the side of my
garden. I want to raise the level of the garden about 18" on that
side.
Will the oak survive if I cover the lower 18" of bark or do I need to
protect it ?

Neighbours have levelled their garden by building patios. They had two
chestnut trees in the middle of one. They used rubble topped by scalpings,
then a layer of soil and turf. 3 feet of the chestnut tree trunks were
buried.
This was done more than than ten years ago and the trees are still healthy.
Doesn't mean it would be the same with an oak, though.

Problems due to earthing-up don't happen overnight. If the turf drains
fery quickly and very thoroughly they *MAY* get away with it. As a
primarily woodland tree, sweet chestnuts can be temperamental at the
best of times in a garden environment.

I'm not saying tha if you earth a tree up, disease is inevitable: it
isn't. In the long term it's highly likely though.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/