Hi, Victoria
I was given a small potted xmas tree when I bought my one for indoor decorating, what I have decided to do with mind is keep potting it on until its got to a size where it will not get bashed by accident and big enough to see when Im gardening (clumsy sometimes), they look nice grown in ornamental pots. I will eventually permanently plant in the ground though. But I must add that smaller trees and shrubs do establish and settle in a lot quicker than bigger ones. But I am sure he will be fine to put out, as long as you remember where he is and not at risk of getting damaged,its getting to that planting time again anyway.. hurray!