Q.We have what I would call “miniature lemon cypress” trees. (6 of them) It is getting cooler and we want to know how to look after
them for winter season? These cypress trees are in pots outside. Do we take them out of the pots and put them in black plastic bags and store them in the garage over winter? We live in Kelowna, B.C. and it can get down to -20C degrees in the winter.

Certified GKH Gardening Expert
You can bring these plants indoors if you can provide them with five or six hours of sun or artificial light every day by placing them near a window. They'd enjoy the cool temperature of a garage, but won't tolerate a hard freeze. I would leave them in their pots and insulate the pots by wrapping them with burlap or other protective material.
https://www.gardeningknowhow.com/ornamental/trees/cypress/lemon-cypress-care.htm