$2 · Ajuga ground cover

Purple leaves with bright blue flowers (happening now). Spreads well without becoming invasive. I have some in 4x4x4 inch pots for $2 each and a clump in an eight inch round for $5. There’s also a 2x2 ft patch in the ground I’m willing to part with, price negotiable. Sorry the pictures aren’t too great https://www.bhg.com/gardening/plant-dictionary/perennial/ajuga/