Yew or Beech for Hedging?

Good morning, I want to plant a hedge under the dining room window to provide some screening (pic included): Target final height 7′ / 8′ Bed width 2′-6″ Total length 14′ Drip line for watering N exposure, top soil, 2-3…

Carpinus betulus ‘Fastigiata’*

I am considering planting 2 Pyramidal European Hornbeam for the purpose of screening. I am getting conflicting opinions regarding planting time. Which is optimal, spring or autumn? How far apart should they be? I live in Oakville Ont. Thank you…