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nafex - Re: [NAFEX] Temperature Under Snow

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  • From: Hélène Dessureault <interverbis@videotron.ca>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Temperature Under Snow
  • Date: Mon, 11 Feb 2008 14:23:55 -0500


I am looking forward to more details on this trend concerning snow cover. I have read an article once on dwarf apple trees grown treillised at an angle so that they were almost completely covered by snow in the winter, for protection.
Here, we have about three feet of snow right now, a temperature of -20 F to-day, and the ground was not really frozen under the snow when I checked about a month ago. (The snow came early in large quantity before the ground had time to freeze.)
It has been my experience that fruit trees do usually well under a big carpet of snow.

Hélène, zone 3-4, north of Ottawa


----- Original Message ----- From: "Ernest Plutko" <ernestplutko@wiktel.com>
To: <nafex@lists.ibiblio.org>
Sent: Saturday, February 09, 2008 9:51 PM
Subject: [NAFEX] Temperature Under Snow


Jim Fruth writes that he successfully raises zone 5 blackberries in
zone 3 by bending down canes in Fall so canes will be covered by
snow. Tender grapes vines are also protected this way. Today when
the air temperature was -8 F the temperature next to the ground under
12 inches of snow was + 18 F. A little later when the air
temperature was -17 F the temperature next to the ground under 12
inches of snow was +17 F. We are getting some colder temps the next
few days down to -29 F and I'll measure the ground temp again. It
will be interesting to see what differences deeper snow, or covering
thermometer with soil or straw or tarp will have on ground temps.

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