We had very warm weather through December. So warm, that several plants have come out of their dormant state prematurely. In addition to my azalea and lilac bushes that bloomed in September, I saw a flower on my peach tree this fall and one of the ornamental cherry trees in a nearby park was in full bloom in December.
My hyacinths have been similarly confused about the time of year. They started coming up in December and their shoots are still visible even though we’ve finally received some of the snow and cold weather that are usual for this time of year.
Some of the Lamium maculatum ‘Chequers’ (dead nettle) groundcover plants are visible at the top of the photo; as they are a native, evergreen plant, I’m not worried about them. I wonder if the hyacinths will be able to bloom this spring however.
One thing I noticed about all the confused plants is that, as far as I know, none of them are native to this area. While they may not be able to flower this spring, most will survive, according to this Philly.com article.