John,
When you say that you have a boysenberry 'bush', are you using the word
loosely or is there a better word to describe it? I tend to think of a bush
as something that is sort of compact. My boysenberry plants make
runners/branches up to 20' long. I've always covered them with leaves and
this year I didn't have time so will learn if snow cover does the same job.
BTW, mine are planted next to, and/or on top, the septic tank so the roots
never freeze.
Anyway, use this link to learn which zone you are in - Canadians do not
have their own map; it is a north American thing.
http://www.usna.usda.gov/Hardzone/ushzmap.html
--
Jim Fruth
Brambleberry Farm
Pequot Lakes, MN
www.bberryfarm.com
Jams, Jellies and Syrups
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