I live in north Wiltshire and the same thing happened to my 9 year old olive tree last winter. It was covered in snow and lost all of its leaves but they did come back, for the most part. Another olive in a neighbour's garden lost its leaves, as well.
This winter, I have wrapped the new terra cotta container in 2-3 layers of bubblewrap and covered the tree in one of those green fleece bags. I am still worried about it, however, because it's been covered since December. The bag is a bit of a tight fit since the shape is conical, unlike the shape of the olive. I don't want to continually remove it and put it back on - and though it's been a bit milder lately, the lows are -2 and -3, and it could quickly turn to more snow.
Any suggestions? Should I just remove the fleece?
Replied: Wednesday 19th of January 2011 07:41 AM