Beauties that Wear out their Welcome

I mentioned in my first post that I yanked out a bed of perennial geraniums that was obnoxiously elbowing out its neighbours. The sad aspect of this story is that these geraniums are lovely, prolific bloomers that come in several colours (pink, purple, blue and white, etc)and can really fill out an empty space quickly. Therefore, it's tempting to accept a donation of such a plant (easily obtained for free, not surprisingly) from one's mother-in-law or friend. Accept such presents under advisement! They can be wonderful, but plant them in an area where they have room to grow and won't inhibit the growth of others. Here is a short list of other plants with whom I've had a love/hate relationship.

Chinese Lantern: More of a hate-hate relationship; bought it on a whim, planted it in an isolated spot and watched while it popped up twenty feet away across the driveway. To be avoided!
Bachelor's Buttons: A nondescript plant, whose leaves grow up from the ground almost like an iris, produces vibrant, blue three-to-four inch flowers with lacy edges. Very prolific, sprouts up everywhere, but actually fairly easy to keep under control and a repeat bloomer if you dead-head it regularly.
Oregano: A wonderful herb that flowers abundantly in sunlight and spreads like wild fire. I'm intending to cut it back, but I keep seeing the bees landing on it so have hesitated for their sake. Probably best grown in pots.
Black-eyed Susans: Lovely plant, but very vigorous. Dig out and give away the excess and enjoy its long-lived blooms
Echinacea: Same advice as the Susans. Comes in a few nice colours, the most common being pink.
Goutweed: Was afflicted with this plant in my previous garden and eventually had to dig it out completely and for all I know it has come back to haunt the present owners of the property. It's an awful creeper but I suppose has its uses if you just want to fill up a space with something other than grass. It has variegated (green and white) leaves and small white flowers that grow in bunches on a tall stalk. Quite pretty (she said, grudgingly...). To be avoided at all costs, in my humble opinion (IMHO).
That's it for now. I was going to add links to a couple of sites about geraniums etc., but I can't figure out how. I'll try to get that sorted out.

P.S. My sister tells me I should keep watering the Hawthorn for awhile because it might not be completely dead, so I'm going to do that and see what happens.