On 30/11/2012 16:14, jim west wrote:
wrote in message
...
On Wednesday, November 28, 2012 5:35:18 PM UTC, stuart noble wrote:
On 28/11/2012 10:16, jim west wrote:

Had a plant that nearly died from the frost and cold last year, so wish
to
insulate from the cold and its to be kept on a small patio outside, but
adjacent to the house.

The patio consists of paving slabs (placed on a hardcore of broken
bricks
base) about nine inches above the soil level.

I intend wrapping bubble wrap around the plant (a bamboo) and the pot.
Bearing in mind the ground soil (and maybe these slabs? )are sometimes
warmer than the air temperature, should i *insulate* the pot from the
patio
slabs when i wrap in bubble wrap; or keep the pot placed next to the
paving
slabs, and just place the bubble wrap over plant and pot.

AFAIK the ground and slabs will tend to be colder than the air during
winter and warmer in summer. I would stand the pot on strips of
something (tiles?) to allow circulation of air under it

When outdoors gets down to freezing at night, the ground is warmer than
the air. So fof frost protection leave it in contact with the ground.


NT
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Thanks to all. Its the freezing weather that i'm most worried about. People
are advise to bury themselves in snow at night, so i'm guessing you are
right that the ground is indeed warmer than the air when its very cold,
which means keeping close to the patio slabs and the house.

Also i'm thinking that heat can rise out of fleece and that its main purpose
is to deflect the wind. So it seems a possibility to use bubble wrap to wrap
the pot and plant, but leave some opening at the top to avoid trapping
moisture?


If you have any old shade netting then several layers of that make a
goos insulation from the cold