Yesterday, Jack and I decided to take advantage of the nice weather to clean up some flower beds. I had planned to wait until the plants had gone dormant but who knows when that is going to happen? To expedite leaf removal (we are mulching them, then returning them to the bed), I cut back the foliage on the perennials (the salvia and coneflowers are still blooming) and pulled up the annuals. I was struck by how many plants are alive and growing, almost a full week into December. And have you noticed how many azaleas have been blooming this fall? Some of these are the mulit-season bloomers like Encore, but I'm sure that others are not.
Is this an anomaly or a sign of things to come? Global warming?
This article by the Garden Professors suggests that such out-of-season bloom doesn't represent a threat to our plants in the short-term. But the graph they present does show a definite warming trend. . . .