Rocky Knoll Farm
Black Adder
$37
Black Adder is a spectacular and rare rhododendron hybrid with exceptional dark blooms. Its red-purple-black flowers each have a striking gold-bronze pattern on the upper dorsal. It has has deep ruby stems and its new foliage is a showy deep red hue for bonus character. This plant has full rounded trusses and it is a true garden showpiece!
Black Adder is a larger-growing rhododendron that reaches around 6' tall x 6' wide at maturity. Place it in full sun to partial shade and well-draining (preferably acidic) soil. This plant is hardy to 0°F when protected from windchill. If you want a dark blooming eye-catcher, look no further!