Photo by Melody

PlantFiles: Small-leaf Rhododendron
Rhododendron 'Blue Baron'

Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Cultivar: Blue Baron
Hybridized by Weston Nurseries; Year of Registration or Introduction: 1981

» View all varieties of Azaleas and Rhododendrons

One vendor has this plant for sale.

2 members have or want this plant for trade.


4-6 ft. (1.2-1.8 m)

4-6 ft. (1.2-1.8 m)

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)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade
Light Shade

All parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Mid Spring


Other details:
Average Water Needs; Water regularly; do not overwater
Provides winter interest

Patent Information:

Seed Collecting:
Unknown - Tell us

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to view:

By rhodiedave
Thumbnail #1 of Rhododendron  by rhodiedave


3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive coriaceous On Dec 31, 2014, coriaceous from ROSLINDALE, MA wrote:

The intense blue-violet color is spectacular, and very unusual in such a hardy rhododendron.

Blooms early (April in eastern Massachusetts).

The breeder recommends siting where it's protected from winter sun and winds in Z6.

Positive levidude69 On Jan 13, 2014, levidude69 from New Kensington, PA (Zone 6b) wrote:

Absolutely stunning in Bloom, its as close to true blue as it gets. Not long blooming but when it does (very reliable) it's a show stopper. Be careful not to drown it when getting it established. Once established it's very rugged.

Positive MaryNeedsSleep On Mar 27, 2010, MaryNeedsSleep from Morgantown, WV wrote:

Weston nurseries introduction ['Starry Night' ('Gletschernacht') x 'Waltham']. One of the most blue rhodies. Small leaf varieties are said to like more sun than most azaleas and rhododendron.


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

Hopkinton, Massachusetts
Johnstown, Pennsylvania
Lititz, Pennsylvania
New Kensington, Pennsylvania
Anacortes, Washington

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