Horticulture/Ajuga reptans

Ajuga reptans (Blue bugle, Bugleherb, Bugleweed, Carpetweed, Common bugle, Carpenter's Herb) is a herbaceous flowering plant native to Europe. This plant is often used as medicinal and ornamental plant. Bugle is also known as "carpenter's herb" due to its supposed ability to stem bleeding.

Description
The bugle has dark green leaves with purple highlights. It is a spreading ground cover that grows in a dense mat. The leaves grow 2-3 inches high but in the spring it sends up 4-6 inch tall flower stalks densely covered with numerous purple or blue flowers.