A fourth generation family-owned and operated landscape nursery and construction company. Locations in Johnston and Chepachet RI. Open to the public. Central Nurseries Incorporated (CNI) has long been nationally recognized as a leader in award winning landscape construction as well as a supplier of the highest quality wholesale nursery stock. Now, in our seventy-fifth year, the CNI brand has become the bench mark of quality and service in providing heavy and site construction services, professional grounds maintenance, interior planting installations and maintenance, wholesale nursery and professional hard goods, landscape design-build services, as well as an extraordinary garden center.