Euterpe edulis is a nice palm that should be more widely grown in zones 9b/10a. It is finicky when young and slow growing for a few years. It also likes lots of water. But it has some good cool and cold hardiness, very similar to Archontophoenix cunninghamiana. This is the largest specimen at Leu Gardens. It was planted in May 2005 under high tree canopy. It is now nearly 30ft tall. It has been flowering and seeding the last couple of years. I have collected seeds but never got any to germinate.