Majesty Palm is a popular container palm for indoors but can be grown outside as well. Grown under good outdoor conditions the Majesty Palm can reach 10-20' tall, but because of its cold intolerance it is mostly kept in large pots. Majesty Palm can tolerate temperatures as low as 25°F, but absolute cold tolerance is probably a few degrees cooler than this. It is suggested that you should move your Majesty Palm indoors when temperatures start to drop below 40°F.