Creeping Charlie (Glechoma hederacea) is an invasive herbaceous groundcover that can choke out grass in a lawn and crowd out ornamentals. It spreads by seed and creeping stems.
Also known as ground-ivy, gill-over-the-ground, creeping charlie, alehoof, tunhoof, catsfoot, field balm, and run-away-robin, this perennial weed thrives in moist, shady spots such as under trees and shrubs.
Creeping Charlie has square stems, purplish blue funnel-shaped flowers, and round or kidney shaped leaves. Remove it in the spring, using a rake or by hand, after winter temperatures have weakened the roots and the ground is moist. It is important to pull it before new growth has started and it becomes established.