Cold Hardy Tropicals

A young needle palm

About Rhapidophyllum Hystrix
Rhapidophyllum hystrix, the needle palm, is generally considered to be the most cold-hardy palm. It is a slow-growing palm with a shrub-like form, and usually does not form a large trunk. It is indigenous to the coastal southeastern United States, from Mississippi to South Carolina.
Hardiness
Conservatively, the needle palm is hardy [...]

A surprising number of palms can survive in cold-winter climates. The most cold-hardy palms are usually found naturally growing in high elevations, or in colder inland areas, less moderated by ocean influences. For example, palms in the genus Trachycarpus are found growing in high alititudes in the Himalayas, and native stands [...]