Skookum Rhododendron Skookum Rhododendron has striking bright red flowers on dark green foliage. Mounding growth habit. Primary Color: Red Bloom Time: Late Height in 10 Years: 3' Hardiness (Temperature): -20 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