There is a Rosemary, variety 'Arp,' that I've gotten through my zone 3
winters. To accomplish that, it must be covered with a wide container so
the plant is exposed to air all around it and the container covered with a
THICK layer of mulch. If the plant is mulched like any other, it will rot.
Then, just as soon as the snow melts off it, or even a little sooner, it
must be uncovered.
Jim Fruth
Brambleberry Farm
Pequot Lakes, MN 56472
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