I have olives also, well, I have an olive! The rest dropped off whilst we were on our hols, but the one is a big one, the size that you would buy from the deli. Most impressed. Anyhow, tis still very green and rock hard, so my olive, along with my other slightly tender and very tender babies has now gone into it's winter home, my greenhouse. I think bigger trees can overwinter outside, but mine is still only smallish so in it goes!