Circus Rhododendron Circus Rhododendron has a unique flower. Each yellow-orange petal is bordered by shades of pink to red-purple, with a golden green blotch on the upper petal. Primary Color: Orange Bloom Time: Late Height in 10 Years: 3' Hardiness (Temperature): -5 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