Photo by Melody

PlantFiles: Dwarf Rhododendron
Rhododendron impeditum

Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Species: impeditum (im-ped-EYE-tum) (Info)

» View all varieties of Azaleas and Rhododendrons

8 members have or want this plant for trade.



12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

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

All parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Late Winter/Early Spring
Mid Spring


Other details:
Average Water Needs; Water regularly; do not overwater

Patent Information:

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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By Todd_Boland
Thumbnail #1 of Rhododendron impeditum by Todd_Boland

By rhodyoh
Thumbnail #2 of Rhododendron impeditum by rhodyoh

By rhodyoh
Thumbnail #3 of Rhododendron impeditum by rhodyoh

By rhodyoh
Thumbnail #4 of Rhododendron impeditum by rhodyoh

By Todd_Boland
Thumbnail #5 of Rhododendron impeditum by Todd_Boland

By shokami2
Thumbnail #6 of Rhododendron impeditum by shokami2

By shokami2
Thumbnail #7 of Rhododendron impeditum by shokami2

There are a total of 17 photos.
Click here to view them all!


3 positives
1 neutral
2 negatives

Gardeners' Notes:

Positive themikeman On Jul 10, 2010, themikeman from Concord, NC (Zone 7a) wrote:

extremely beautiful, but also extremely sickly and sensitive, it's probably going to die, as it is turning yellowy-brown and brittle. I have checked the ph, corrected it, as it was only a little too high, so used a tiny bit of cider vinegar diluted in gallon water, and even added expensive cooperas natural iron sulphate, in case it had iron chlorosis, and nothing is helping revive it. mike

Neutral Eleven On Jun 14, 2009, Eleven from Royal Oak, MI (Zone 6a) wrote:

I bought two of these from a big box store before reading all the other comments but went ahead and planted them thinking I didn't have much to lose. They seemed to be doing all right for a couple weeks and put on some new growth. Then the neighborhood squirrels found them; the poor shrubs were dead within three days. I loved how they looked before that so might try them again next year with some cages for protection.

Positive tropicsofohio On Dec 17, 2008, tropicsofohio from Hilliard, OH (Zone 6b) wrote:

wow, im surprized at the negative comments, i didnt realize how easy it is to kill these, i bought one 2 years ago, stuck it in the ground, and ignored it. it bloomed, added growth, and lookes beautiful. the leaves turn purple in the winter. i like this shrub very much. good luck with it

Negative esteve59 On Dec 17, 2008, esteve59 from Annapolis, MD wrote:

Very cool dwarf, but I also have 2 out of 3 dead....a very picky shrub......

Negative plantaholic186 On Aug 14, 2008, plantaholic186 from Winnetka, IL wrote:

I have to say, I have tried this plant several times, and it just won't stay alive. It's planted in raised beds full of azaleas and rhodies that thrive, but I've had only one survive out of 5 this year. Most of my rhodies are z6, so it should be okay. Maybe it just doesn't like me.

Positive Todd_Boland On Mar 1, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:

Another gem for the rockery, this dwarf rhododendron has flowers very close to blue, a rare colour for rhodododendrons. the foliage is also blue-tinted and fragrant.


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

Watertown, New York
, Newfoundland and Labrador
Euclid, Ohio
Hilliard, Ohio
Oklahoma City, Oklahoma
Coos Bay, Oregon
Portland, Oregon
Dover, Pennsylvania
Sweetwater, Tennessee
Spokane, Washington
Woodinville, Washington

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