Hi there i just got some land and id like to plant a hedge around the perimeter of the plot. Id like something like a box hedge however i live in the alps at 1200 meters and it can get very cold and windy in the long winters down to -20c with lots of snow and up to +39c in the summer. im having a problem choosing what type of hedge to have and would like peoples suggestions what i could plant. IT NEEDS TO BE. cold, wind, heat resistant and none poisonous. Thankyou for taking your time to read this. from a new gardener