List of hardy palms

Hardy palms are any of the species of palm (Arecaceae) that are able to withstand brief periods of colder temperatures and even occasional snowfall. A few palms are native to higher elevations of South Asia where true winter conditions occur, while a few others are native to the warmer parts of the temperate zone in southern Europe, and others are native throughout temperate and subtropical locales in the Americas and Oceania. A few of these temperate climate palms can tolerate hard freezes with little or no damage. Many of these "hardy" species can be cultivated in warmer parts of temperate and subtropical climates.
The cold hardiness of palms varies by species. The hardiest species are found in the tribe Trachycarpeae, Washingtonia, and Rhapis, with species which are found in the wild in areas where the mean temperature of the coldest month of the year is not much less than 5 °C (41 °F), and Trachycarpus, with species which are found in the wild in areas where the mean temperature of the coldest month of the year is as low as 0.2 °C (32.4 °F). Members of the above palms and other genera are sometimes grown in areas where they are not truly hardy, overwintering with the aid of various kinds of artificial protection.
The fan palms (Arecaceae tribe Corypheae; palms with fan-shaped leaves) include all of the hardiest palms.
Few palms with pinnate leaves tolerate much frost. They belong to several tribes of the Arecaceae, with the species listed here belonging to Tribe Areceae (Chamaedorea), Tribe Cocoseae (Butia, Jubaea) and Tribe Phoeniceae (Phoenix).
Some plants used in subtropical landscaping in temperate climates like much of Europe, northern China/Japan, Korea, the northern USA, New Zealand, etc. that are commonly referred to as "palms", but are not palms, i.e. not members of the Arecaceae family, include: Aloidendron barberae, Beaucarnea recurvata, Berberis eurybracteata, Cordyline australis, Cordyline indivisa, Cycas revoluta, Dasylirion, Cyathea australis, Cyathea capensis, Cyathea cooperi, Cyathea dealbata, Cyathea medullaris, Dicksonia antarctica, Dicksonia squarrosa, Dioon angustifolium, Dioon edule, Encephalartos, Macrozamia communis, Macrozamia johnsonii, Macrozamia riedlei, Mahonia oiwakensis, Musa basjoo, Musa sikkimensis, Pseudopanax ferox, Rhus typhina, Xanthorrhoea, Yucca aloifolia, Yucca gigantea, Yucca rostrata and Zamia integrifolia.
In general, hardy palms can only tolerate brief periods with temperatures in the range −18 to −12 °C (0 to 10 °F). As such, this generally limits hardy palm cultivation and long term specimens to hardiness zone 7a or higher. Some hardy palms can be cultivated in areas with low temperatures slightly below this range when given wind sheltering (planted on the south side of a building). In the US, hardy palm cultivation is generally attempted from USDA zones 6b/7a southward.
In very cold winter areas below zone 6b, cold hardy palms have been cultivated by partially (or completely) covering plants with mini-green house coverings and wraps. Some garden enthusiasts in severe cold winter areas have gone as far as heating the interiors of these winter enclosures. As such, there are occasional reports of hardy palms be cultivated in areas with severe winters with low temperatures below −18 °C (0 °F).