Last year something really amazing happened. As I accidentally found an Olive Tree sapling at the plant nersury, (a very rare sighting) - So without even wasting a second (or any bargaining) I bought it immediately! Therefore in this thread I'll be posting regular updates of how this tree progresses.
Excellent S-H We've got some in pots, we put them undercover in the winter, they'd probably survive if they were in the ground but the cold might get the roots in the pots.
Those are beautiful Zigs! You could pot insulation around the pots to keep them warm. Like an old blanket. Or a thermal reflector which usually is glass wool sandwiched between 2 layers of aluminum foil.