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A Turn in the Path. "Admirers come to the U.S. National Arboretum’s Azalea Collection every spring to witness one of Washington’s premier spring attractions. Thousands of azaleas cover the flanks of …More
A Turn in the Path.

"Admirers come to the U.S. National Arboretum’s Azalea Collection every spring to witness one of Washington’s premier spring attractions. Thousands of azaleas cover the flanks of Mount Hamilton in a blaze of color… Many of the shrubs in the collection sprang from the azalea breeding work of former Arboretum Director Benjamin Y. Morrison. The plants on the south slopes of Mount Hamilton in the area known as the Glenn Dale Hillside are the products of this work. Morrison envisioned the modern hybrid azalea as we know it today and successfully married the large flowers and exciting colors of tender azaleas in the Indica group with the hardiness of more northerly species. Morrison did the hybridization work in the years between 1929 and 1954… The Glenn Dale Hillside was planted with 10,000 unnamed Glenn Dale hybrids from 1946 to 1948. Morrison went on to eventually introduce 454 cultivars of Glenn Dale azaleas."

Source: Lawrence OP on Flickr