-----Message d'origine-----
De*: Internet Bonsai Club ] De la part de
Roger Snipes
Envoyé*: 30 septembre 2005 21:07
À*:
Objet*: [IBC] Bonsai in Quebec

Michel,

You don't need to build a heated greenhouse to safely winter your trees in a

simulated zone 6 or 7 temperature. A cold frame will do the job nicely with

no added heat. Take a look at this article on Reiner Goebel's website:
http://rgbonsai.com/wintering.htm
He uses a cold frame in Toronto, which is Zone 5 I believe. I use a similar

cold frame here in Spokane, Washington, also Zone 5. The coldest it ever
gets in my cold frame is about +25 degrees F. That is way warmer than the
average maximum low for zone 6 or 7 (-10 degrees F for zone 6 and 0 degrees
for zone 7). Once built the cold frame costs nothing to operate, the heat
from the earth keeps the temperatures moderated.

Regards,
Roger Snipes
Spokane, WA. Zone 5-ish

----- Original Message -----
From: "Michel Bourgeois"
What I don't like here is only the climate. We have a lot of snow in the
winter, 3 to 4 feet and I live in a 3b zone so, I let you guess the damage
it can do to you Japanese Pines at -35C! And in the spring... all the snows
melt during the day and in the next night it goes to -15C! Poor little root!

This winter I will build a greenhouse and try to simulate a 6 or 7 zone...
it will cost a LOT of money to warm it!

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