Size 4″ ,Isotoma fluviatillis – Blue Star Creeper,
Small blue, star-shaped flowers cover a dense mat of dark-green foliage. Rugged, sturdy plant. Grows best in a moist, well-drained soil. Appreciates afternoon shade when grown in warmer areas. Sturdy enough as a lawn substitute, but also does well in containers or planted between pavers. Tolerates varying amounts of foot traffic.