Azalea
Rhododendron 'Stewartstonian'

Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Cultivar: Stewartstonian
Hybridized by Gable
» View all varieties of Azaleas and Rhododendrons

Category:

Shrubs

Height:

4-6 ft. (1.2-1.8 m)

Spacing:

4-6 ft. (1.2-1.8 m)

Hardiness:

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Sun to Partial Shade

Light Shade

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Red

Red-Orange

Bloom Time:

Mid Spring

Foliage:

Grown for foliage

Evergreen

Shiny/Glossy-Textured

Other details:

Flowers are fragrant

Average Water Needs; Water regularly; do not overwater

Patent Information:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Cordele, Georgia

Naperville, Illinois

Winnetka, Illinois

Traverse City, Michigan

Mahopac, New York

Charlotte, North Carolina

Edison, Washington

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Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Apr 7, 2010, jackstangle from La Conner, WA wrote:

I have had mine for about 15 years. It is a reliable bloomer here in WA. But my plant is a lot bushier than the photo 7 is just covered with orangy-red flowers right now (Apr 6). However it does have good drainage.

Positive

On May 28, 2008, plantaholic186 from Winnetka, IL wrote:

One of the best reds for cold climates. While Rhododendron are not happy sitting in water, my 'Stewartsonian' shrubs had their rootballs submerged in water on and off from January to March, due to the constant heavy snows and subsequent melting. For two days, the whole bed was an ice-skating rink! The three Rhodies that made it with flying colors despite this were 'Boudoir', 'Bixby', and 'Stewartsonian.' Since the bed is obviously not properly drained, I have been lifting all the shrubs, but I am impressed by how well this shrub fared.