Save the butterfliesThe monarch caterpillars can only eat milkweed. It's one of the reasons they're endangered. There were a lot of gardeners destroying milkweed across North America. You can guess what they thought of it from its name. Now there's a push to get gardeners to plant it, and for more pollinator gardens which benefit a lot of other species as well, like bees.
There are some areas having problems with complaints about those gardens, especially since the bylaws in most municipalities seem to expect all yards to look like the suburbia depicted in Edward Scissorhands.
Edward Scissorhands...oh Johnny