Fox Hill Lilac Nursery - Maine lilac nursery growing over 90 different cultivars of lilacs. Empire National Nursery - Growers of fast growing trees and shrubs for landscaping planting projects. Select Plus International Lilac Nursery - Quebec-based grower of species, hybrid and cultivar lilacs, including heirloom and rare varieties. Ships to US. Also sells perennials. Carlson's Gardens - New York grower of azaleas, rhododendrons and mountain laurels. PDSI Plants By Mail - Sales of Encore azaleas, hydrangea, and roses. Earthworks Nursery - North Carolina nursery offers evergreen and flowering shrubs, as well as groundcovers, vines, and crepe myrtles.