Chances are not good. You can try trimming it back, watering and lightly fertilizing to see if it revives. If you start to see new budding on the stems at the bottom, it may live through the winter. Lavender likes lots of sun but not too much water. The soil should drain freely and be pretty dry before you water it. If this is in a pot, I'd be tempted to add some sand to the potting soil and make sure you have a drainage hole in the pot's bottom. You should always repot a plant purchased from a grocery store. It is likely to be rootbound.
Answered on July 27, 2017
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