Nancy Evans Rhododendron Nancy Evans Rhododendron has orange-red buds open to amber yellow flowers that appear double because of the large calyx. Free flowering rounded plant habit. Ball-shaped trusses hold 19 flowers. Primary Color: Yellow Bloom Time: Midseason Height in 10 Years: 3' Hardiness (Temperature): 5 Sun / Shade: Morning Sun, Afternoon Shade Landscape Category: Shrub Genus: Rhododendron More plants in: Hybrid Rhododendrons Find out if this plant is available: Rhododendron and Azalea Availability List