Rhododendron ‘Grace Seabrook’

hybrid rhododendron

  • © American Rhododendron Society - Eleanor Philp

Outstanding Qualities

Red rhododendrons are high-impact shrubs that demand your attention. 'Grace Seabrook' blooms in early spring with bright, blood-red flowers. Like 'Double Winner', it is a hybrid of Rh. strigillosum, and this shows in the light indumentum beneath its handsome leaves. Because it blooms early, it doesn't throw off the color scheme when other things bloom against it, as do some red rhododendrons. 'Grace Seabrook' may be hard to find as it doesn't bloom in a 5-gallon pot, but it is worth hunting for.

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: 7 ft. 0 in. (2.13 meters)

Plant Width-Mature: 6 ft. 0 in. (1.83 meters)

Hardiness: USDA Zones 6 to 9

Flower Color: red

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

Water Requirements: frequent to regular watering

Seasonal Interest: glowing blood-red flowers in early 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.