The fishtail palm was named for its unusual leaves - shaped like a jagged fish's tail - which form thick, swirled layers of ruffled fronds. Fishtails are clustering palms that grow dense and full. They can be used as privacy screens - especially while they're young - and create a draping mass of deep green leaves among large trunks as they age. Many homeowners opt for growing a fishtail in an area where they've been considering clumping bamboo. It won't spread as much or grow as fast as bamboo, but gives the same kind of tropical look and privacy. Fishtails grow at a moderate rate to about 20 to 25 feet. They're moderately cold tolerant, best in warmer areas of Zone 9B and southward. This palm can be grown in full sun to part shade. The more shade, the slower the growth rate. Mature stems will eventually flower and produce inedible fruits...and then die. These can be cut back and new growth sprouting up from the bottom will help fill in.