MEDITERRANEAN SURVIVABILTY INDEX ZONE 5A: The Coco Zone
From Palmpedia - Palm Grower's Guide
This is the zone in which most people with a greenhouse can grow these palms, and some may even survive outdoors in the warmer months, but not in the winter months. Some may have success with these as house plants, too, if they can provide sufficient light and humidity. In many of the warmer Mediterranean climates, these palms would survive in a cold frame.