Russ1
Yamadori
I think cold wind, aka wind chill, is more important than just cold because it can dry out the new foliage or buds it can also damage roots.
I would protect them from the wind and extreme cold, I would cover them with clear or white plastic and use maybe 50% shade screen so they get some light.
The shade screen will also keep them cooler and more consistent temperature. On days and nights above 28f I would let air flow thru.
Which reminds me that I need to put the shade screen up on my unheated Greenhouse.
It definitely has been a challenging winter with inconsistent temps and not staying cool enough during the day... but I can't keep the shade screen on when it snows since it holds the snow and this year what snow we've had has been wet and heavy.
I would protect them from the wind and extreme cold, I would cover them with clear or white plastic and use maybe 50% shade screen so they get some light.
The shade screen will also keep them cooler and more consistent temperature. On days and nights above 28f I would let air flow thru.
Which reminds me that I need to put the shade screen up on my unheated Greenhouse.
It definitely has been a challenging winter with inconsistent temps and not staying cool enough during the day... but I can't keep the shade screen on when it snows since it holds the snow and this year what snow we've had has been wet and heavy.