As I have confessed before, I am no gardener, but I love flowers. GF gave me these ageratum as a transplant from her own garden, and I stuck them into an empty place, and they have been happy to come back every year, in spite of my neglect. They are a bit invasive, and they keep trying to move over and are crowding out my rosemary, which I am proud to say has wintered over for the third year, and is finally getting to be a decent size. I always felt so bad about cutting off a "sprig" for our dinner when the thing was so puny. But, I digress.
This ageratum is the just about last thing that blooms in the garden. It stays green and leafy and leggy until now, when it starts putting out little periwinkle balls, and then I think, "Oh, it is not going to do too well this year." But, then the flowers keep getting bigger and bigger until they are 2-3" across. The bonus is that it is butterfly season, and they all seem to love this plant. One day there were 10 monarchs out there all enjoying the flowers and the sun--all right outside my kitchen window. Sweet!