They can be beautiful. They can be fragrant.
They are also deadly.
It's the invasion of the aliens - the alien plants, the invasives. If you have a back yard, chances are you have one invasive species in it. These invaders crowd out native plants and change our environment. They can have adverse impacts on wildlife. They tend to be fast growers. The most famous invasive may be kudzu but there are lot of other aliens lurking out there in a backyard or vacant lot near you.
A different honeysuckle (same location).
And finally, wisteria. Not all wisterias are invasive, but Japanese wisteria is invasive in a lot of the East Coast of the United States. In March, you can see this beautiful purple bloom up in trees in parts of South Carolina and Georgia. Problem is, it also kills the trees, as does Chinese wiseria. I found this specimen of wisteria today on the West Side of Binghamton in an ornamental situation, and this may not be one of the invasive species. I certainly hope it is.
What invasive plants are a problem in your area?