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PlantFiles: Rhododendron
Rhododendron 'PJM'

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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

» View all varieties of Azaleas and Rhododendrons

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Category:
Shrubs

Height:
4-6 ft. (1.2-1.8 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
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

Danger:
Unknown - Tell us

Bloom Color:
Magenta (Pink-Purple)

Bloom Time:
Late Spring/Early Summer

Foliage:
Grown for foliage
Evergreen
Bronze-Green

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

Patent Information:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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There are a total of 25 photos.
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Profile:

3 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Malus2006 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 flowers compare to in full sun but alas the problem is balancing the amount of sun vs shade (azaleas have the same problem so people usually put them on either sunny and open north side or if the nearby house shades the south slope somewhat)- the winter sun can cause damages to the tightly curled up leaves like some evergreens like dwarf alberta spruce, yews.

I see by some reports that it may be zone 3b hardy - one report from St. Cloud - and that the reports are for areas where there are few rhododendron cultivars that could be grown - mainly zone 3b to 5a.

Positive Kubileya 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!

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

parentage: R. carolinianum x dauricum

Positive sanity101 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.

Regional...

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
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
Portland, Oregon
Allentown, Pennsylvania
Johnston, Rhode Island
Brady, Washington
Pullman, Washington
Baraboo, Wisconsin
Madison, Wisconsin
New Lisbon, Wisconsin



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