Does a plant that "seeds in when happy" or even "seeds in aggressively" fall under the invasive category? For example Bouteloua gracilis 'Blond Ambition' ('Blond Ambition' Blue Grama) will seed in when happy. Chasmanthium latifolium (Northern Sea Oats) will seed in aggressively. Then Arundo donax (Giant Reed Grass) is highly invasive if planted directly in the soil.
Questions for Mary, Harriett, Robin..... And others-
How much winter work do you? Are you still "full time?" How do you keep your fingers warm?
Does anyone have a plant that seems to be doing fairly well despite animal activity? Deer are not an issue (yet) as it is inside a fence. I have an open patch in one of the gardens because I am waiting to find something strong. I will probably go with a shrub ...