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Old December 27, 2015   #20
salix's Avatar
Join Date: Dec 2007
Location: north central B.C.
Posts: 2,228

In over 10 years I've had one rosemary overwinter once in the garden - it must have been an amazing combination of snowfall and temperature and will probably never happen again. I always keep 3 of the plants in a large (and heavy) pot in the driveway. It is perfectly happy until about -10 C, below that and I drag it into the garage, putting it back out if there is a stretch of warmer weather. When the weather turns permanently cold, it stays in the unlighted garage and occasionally gets a few handfuls of snow for moisture. Back outside when the weather warms up and it's good to go.
"He who has a library and a garden wants for nothing." -Cicero
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