Answer: Fortunately, Pigmy Date Palms are relatively small so winter protection shouldn't be too difficult. It will grow as far north as zone 9 and there are stories of it surviving at occasional temperatures into the mid to low 20s once it has been established. But it must be covered with a sheet or some plastic to provide frost protection. If you cover it overnight, be sure to remove the covering in the morning - if you leave it on after the sun comes up, the fronds can bake in the heat.
Best wishes with your palms!
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