Trinidad Rhododendron Trinidad Rhododendron is a very hardy bicolor plant. Flowers are yellow with a cherry red perimeter. Primary Color: Yellow Bloom Time: Height in 10 Years: 4' 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