Common daylily is considered invasive in the Chicago area and is very difficult to eradicate. Dispose of plants and roots through commercial composting to prevent its spread.

The daylily: A most accommodating plant. Published: ; Jul. 02, 2009, 7:13 p.m. By . Catherine Morrison/This Month in the Garden ...

The names may surprise you — and very likely the plants are all around you — but they don't belong in Wisconsin and they do cause trouble.

This reliable bloomer adds shape and color to the Southern garden. Learn about growing and caring for daylilies.