Frank Galsworthy Rhododendron Frank Galsworthy Rhododendron has deep maroon-purple flowers with yellow-gold flares. Also known as "Purple and Gold". Primary Color: Purple Bloom Time: Late Height in 10 Years: 4' Hardiness (Temperature): -15 Sun / Shade: Morning Sun, Afternoon Shade Landscape Category: Shrub Genus: Rhododendron More plants in: Coming Soon Find out if this plant is available: Rhododendron and Azalea Availability List