Most of the palms listed below can be grown a half zone colder than that listed, if provided with protection during the winter. Expect some cold damage to occur in severe winters to all but the hardiest of palms. They are rare to the point of endangerment and are often found growing over limestone. They are a clumping understory palm with many palmate, deep-green leaves that have silvery undersides. Numerous very sharp needles protect the crown of the plant, hence its name, needle palm.
Needle palm is a very adaptable palm.
F. New growth is damaged at -10 F. Fifteen degrees below zero is usually fatal, although plants have been known to recover from this temperature. Hardy in South Carolina from zones 7a to 8b. Needle palms can be used in clumps or as single specimens. The typical size of the clump is about 5 feet high and wide, although it can eventually reach 10 feet high and wide. The growth rate is slow.