Answer: The hardiness zones are based on average minimum temperatures and wind can certainly affect the microclimate for your garden. For instance, a sheltered spot can be substantially warmer than a windy one. The hardiness confusion probably stems from variances between different varieties of blackberries and other brambles -- some are simply much more cold hardy than others. Probably the best source of information about varieties that do well in your local area are your County Extension (662-3141) and local gardeners.
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