Rhododendron ‘Vulcan's Flame’

hybrid rhododendron

  • © Richie Steffen / Great Plant Picks

Outstanding Qualities

Rhododendron 'Vulcan's Flame' is very similar to R. 'Vulcan' except that R. 'Vulcan's Flame' is more heat tolerant and blooms at a younger age. The flowers, however, are just as outstanding – a bright red and they are held above the deep green foliage.

Quick Facts

Plant Type: shrub

Foliage Type: evergreen

Plant Height: 5 ft. 0 in. (1.52 meters)

Plant Width/Spread: 5 ft. 0 in. (1.52 meters)

Plant Height-Mature: 8 ft. 0 in. (2.44 meters)

Plant Width-Mature: 8 ft. 0 in. (2.44 meters)

Hardiness: USDA Zones 5 to 9

Flower Color: red

Sun/Light Exposure: full sun to light or open shade

Water Requirements: frequent to regular watering

Seasonal Interest: brilliant red flowers in late spring

Wildlife Associations: bees, hummingbirds

Colors & Combos

Great Color Contrasts: cream, silver, gold

Great Color Partners: bronze, dark green, chartreuse

Culture Notes
This rhododendron is easy to grow in the Pacific Northwest. Plant it in rich well-drained or sandy soil in a location with full sun to light or open shade. Rhododendrons are shallow-rooted plants requiring regular watering during dry weather. Faded flowers can be removed to give a cleaner look and new growth can be pinched to help make young plants bushier. Adult root weevils can chew on their leaves, but this is less of a problem on plants that receive more light and regular watering.