Paradise palm (Howea forsteriana). Also known as kentia palm. Slender trunk and 6- to 12-foot-long, dark green leaves. Light shade; best near the coast. Grows slowly to 30-40 ft. Hardy to 26°. Zones 17, 21-24, H1, H2.
Queen palm (Syagrus romanzoffianum). Tall, straight trunk. Plumelike leaves are 10-15 ft. long. Grows quickly to 50 ft. Hardy to 25° or lower. Zones 12, 13, 15-17, 19-24, H1, H2.