I have two olive trees in pots that I put in in April. They are still quite young trees but not tiny. They are in a fairly sunny spot-but won't get as much warmth over winter when the sun is lower in the sky.
I don't have a conservatory or anywhere to put them indoors. Will they be ok outside (with maybe a burlap sack on them if it gets really cold or snowy for ages) or have they got no chance?