I have a few questions about protecting cold-hardy palms during the winter 1) When you have a cold-hardy palm, is there a limit as to where it can be grown and protected during the winter? For example, I live in Massachusetts (Zone 5b), I know a Windmill Palm would grow here in early spring, all summer, fall, and even early winter, but is a Zone 5b winter just to harsh even for a a cold-hardy palm that is protected? If it had a deep root system, and was protected, does it just get to a point where even if it were protected, the palm just simply cannot be grown in some places and die?... Or could one succesfully grow one here with all the necessary steps...big root ball, mulched, protected during winter, christmas lights around trunk ect ect..? 2)Say I did try and grow a fairly large Windmill outdoors, say 3 or 4 feet, would it be better to immediately plant it outdoors in spring and let it grow.. Or would it be better to leave it in a pot indoors for awhile, let it grow and get a fairly big root ball, and THEN try outdoors?