Have you ever heard of Gooseneck Loosestrife? It looks like a pleasant enough flower, sitting there all pretty and innocent. But it is a very aggressive plant. If you’re looking for a plant to fill in a large area quickly then this is a good plant for you. Otherwise I would stay away from Loosestrife.
It’s a beautiful plant, Bluestem Nursery has all the details on this plant. You should not plant this plant in an area where you do not want it to spread. It makes a great filler for a large area, or a great container plant.
Gooseneck has a long bloom time, and when growing in a large area can create a striking sea of white blooms.