Samoa Rhododendron Samoa Rhododendron has vivid red flowers with faint dorsal spotting. Growth habit is dense, becoming wider than it is high. Primary Color: Red Bloom Time: Early Height in 10 Years: 5' 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