Rhododendron 'PJM'


Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Cultivar: PJM
Additional cultivar information:(aka P.J.M., PJMezitt)
Hybridized by Mezitt
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4-6 ft. (1.2-1.8 m)


4-6 ft. (1.2-1.8 m)


USDA Zone 4b: to -31.6 C (-25 F)

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)

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

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

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


All parts of plant are poisonous if ingested

Bloom Color:

Magenta (Pink-Purple)

Bloom Time:

Late Spring/Early Summer


Grown for foliage


Other details:

Unknown - Tell us

Patent Information:


Seed Collecting:

Unknown - Tell us

Foliage Color:


Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


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

Kennedy, California

North Fork, California

Denver, Colorado

Avon, Connecticut

Wallingford, Connecticut

Bear, Delaware

Laurel, Delaware

Wilmington, Delaware

Chicago, Illinois

Alfred, Maine

South China, Maine

Northbridge, Massachusetts

Roslindale, Massachusetts

Rutland, Massachusetts

Traverse City, Michigan

Minneapolis, Minnesota (2 reports)

Saint Cloud, Minnesota

Victoria, Minnesota

Los Alamos, New Mexico

Baldwinsville, New York

Holmes, New York

Mahopac, New York

North Tonawanda, New York

Roslyn, New York

Webster, New York

Coos Bay, Oregon

Mount Hood Parkdale, Oregon

Portland, Oregon

Allentown, Pennsylvania

Johnston, Rhode Island

Brady, Washington

Pullman, Washington

Baraboo, Wisconsin

Madison, Wisconsin

New Lisbon, Wisconsin

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Gardeners' Notes:


On Jan 1, 2015, coriaceous from ROSLINDALE, MA wrote:

This is not only one of the most popular of the evergreen rhododendrons, it is the hardiest. The flower buds are fully hardy at the Minnesota Landscape Arboretum, Z4a, and in Calgary, Alberta.

Not everyone is fond of the lavender-pink flower color, but it does appear exceptionally early in the season.

The leaves turn dark purple in the winter. The foliage releases an appealing scent when handled, sweet and spicy.

There are at least four different clones sold as 'PJM', though they're hard (impossible) to tell apart.


On Jan 10, 2009, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

Very common grown in the Twin Cities area, Minnesota - and popularity is still growing. It is fully zone 4a hardy too and performs better so far compare to the other few short leaf evergreen rhododendron that are grown for zone 4a - I have tried the variety 'alta' but it didn't last very long.

One big problem is the high disease risk that it carries (azaleas are worse) - mainly rot of its root system - the entire plant dies rapidly no matter how big it get - to me it happen mainly in early to mid Summer - poof most of the leaves fall off and whatever left looks really ugly.

It need a good watering all year (If winters are mild - Minnesota winters are unpredictable) but it doesn't like too much water. It will grow in shade but are more thinner and less flower... read more


On May 31, 2008, Kubileya from Laurel, DE (Zone 7a) wrote:

One of my favorite spring bloomers. It has tons of beautiful purple blooms and everyone who stops by when it's blooming comments on how pretty it is. I have two planted-- one on an east exposure and one on the north. The east rhodie blooms a week or so earlier than the north one, but both have about the same amount of blooms. I've never had a problem with pests or diseases.

One of my other favorite things about this shrub is the scent of the foliage-- kind of like black pepper and candy mixed together. Sounds weird, but it smells great!


On Mar 27, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

parentage: R. carolinianum x dauricum


On Aug 30, 2005, sanity101 from Dublin, OH (Zone 5b) wrote:

Different from the typical rhodedendron, it has small, thin leaves and many small flowers more typical of the 'azalea' look, though it is evergreen. Resembles Rhododendron 'Olga Mezitt' strongly, but with notably paler flowers.

Easy to grow compared to many of the family, it flowers fairly heavily and willingly even in shade, though it does get rather leggy with less sun.