» Classy Groundcovers    Over 130 varieties. Categorized by growing conditions, zone hardiness, or alphabetically. Ships in continental USA.    http://classygroundcovers.com/

» Galyean Nursery    Selling a variety of cultivars of periwinkle, Vinca minor. Located in Oregon, USA.    http://www.oregongroundcover.com/

» Moss Acres    Pennsylvania grower offers four species of moss and moss accessories such as misters and soil acidifiers.    http://www.mossacres.com/

» Peekskill Nurseries    New York nursery growing and suppling pachysandra, vinca minor, euonymus and ivy.    http://www.peekskillnurseries.com/

» Prentiss Court Ground Covers    Sells a wide range of plants including ivy, ajuga, liriope, and hostas.    http://www.groundcoversusa.com/

» Valleybrook International Ventures Inc.    Offer a selection of low spreading perennial plants for all hardiness zones. Based in British Columbia, Canada.    http://www.jeeperscreepers.info/