USDA Hardiness Zones 7 through 11
The feather-like leaves of Phoenix palm trees are all similar, however, the thin, slender trunk of the Sylvester palm tree, Phoenix sylvestris, sets it apart from the massive thick trunk of the Canary Island palm tree, Phoenix canariensis. The Sylvester palm tree, Phoenix sylvestris, is a choice specimen tree with its towering trunk topped and a spreading canopy of ten foot leaves. Phoenix sylvestris transplants well in small or large tree plantings, and the seeds easily sprout to form new palm trees. The Phoenix sylvestris palm tree exhibits the same cold hardy survival characteristics as the Canary Island palm tree, Phoenix canariensis, growing undamaged in Zones 7-11.
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