Nina Shishkoff wrote:

snip

The point is that in an ordinary year, a shed is a perfectly fine place to store bonsai, even if it gets warm in the shed from time to time. This year, we're experiencing a strange warm period JUST as trees have probably gotten enough cold to allow them
to break dormancy. So it's only now that being in the shed is an issue. My trees, outside, are experiencing highs in the 50's, while your trees, Mark, are probably experiencing temperatures in the 60's.

snip

People who use cold frames have the same dilemma; the structure that has protected plants in the earlier half of the winter becomes a problem on sunny days when the cold frame heats up and the plants break dormancy prematurely. That's why many cold fram
es have automatic window-openers that crack open the cold frame in warm weather. And that's why a blanket of snow is such a useful thing when you are trying to overwinter plants.
snip

I found snow to be an excellent insulator in Maine. It also protected trees from wind.


Nina.

This is exactly why I keep mine outdoors. That way nothing artificially raises the temperature in their environment.

Craig Cowing
NY
Zone 5b/6a Sunset 37

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