Botanical nomenclature is sometimes a moving target and frequently confusing. In the case of Blue Star Creeper, you may find it listed as Laurentia axillaris or Laurentia fluviatilis. Please don't confuse this low-growing, semi-evergreen ground cover with Isotoma axillaris that is sometimes called Laurentia, as its an entirely different plant, though both bear small blue star-shaped flowers. Blue Star Creeper does indeed creep along the ground, forming a dense mat of small green leaves, about two inches tall and up to 18 inches wide. This charming ground cover works well between pavers or stepping stones and can handle light foot traffic. Roots are fairly shallow, so Blue Star Creeper grows best in well-draining soil with a sunny exposure.