Sea hollies slightly resemble globe thistles.
A first-class ground cover, mondo grass looks like a lush grass.
Many monkshoods look similar to delphiniums.
Mulleins, like the related foxglove, bear spikes of colorful flowers.
The obedient plant is an easy-care native perennial that's perfect for informal or naturalized gardens.
Omphalodes is related to lungworts and forget-me-nots.
Masterworts are wonderful, underused shade plants.
Meadow rue, related to columbine and delphinium, has sprays of summertime flowers.
A native woodland plant, merrybells emerges early in the spring.
Milkweeds are perennials that attract a variety of butterflies, including the monarch, whose caterpillars consume the plant's leaves.