Shrubs guide

and Plants.

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.
 
Fox Hill Lilac Nursery
Maine lilac nursery growing over 90 different cultivars of lilacs.
 
Girard Nurseries
Ohio nursery specializing in flowering trees and shrubs, particularly azaleas and rhododendrons.
 
Hydrangeas Plus
Oregon nursery offering various species and cultivars of hydrangea.
 
Nb = 4