What type of palm tree is cold hardy to zone 7?
In zone 7 (i.e. NY, coastal RI, NJ, etc.), only the Needle Palm (Rhapidophyllum hystrix) and the Dwarf Palmetto (Sabal minor) will grow without protection. The Windmill Palm (Trachycarpus fortunei) can also be cultivated, albeit some protection will be required. For beginners, the best cold-hardy palm to start with in zone 7 would be the needle palm. It’s low mainetance and super hardy!