Like much of the country, it's cold here tonight. Lows are expected to drop to 13 with a wind chill of zero. The horses are blanketed and I brought in about 2 dozen potted plants and set them down on plastic spread on the living room floor. Cuttings and azaleas and a Vitex tree, things that were not ready to go into the ground this fall.
The Japanese apricot is about a third of the way open. Those flowers will be lost and this cold will be a test even for the buds. I would think this cold would cut short the witch hazel which has been in full bloom for about a week.
How cold is it where you are?