The Main Plant entry for Rhododendrons (Rhododendron)

This database entry exists to show plant data and photos that apply generically to all Rhododendrons.

General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Flowers: Showy
Flower Time: Spring
Late spring or early summer
Uses: Cut Flower
Wildlife Attractant: Bees
Propagation: Other methods: Cuttings: Tip
Layering
Other: Tissue Culture

Image
Common names
  • Rhododendron

Photo Gallery

Date: 2019-03-26
#pollination #pollinators #butterfly
  • Uploaded by jon
Location: My garden, Baltimore MD
#polliNATION #pollinator #butterfly
Location: Bea’s garden
Date: 2021

Date: 2018-05-29

Azalea Aiko Pink
Location: Near an old homestead in B.C. Canada
Date: 2010-06-04

Date: 2018-05-17
Location: Russia, Krasnodarskij Kraj
Date: 2014-06-09

Date: 2018-05-17
Location: central Illinois
Date: 2016-05-12

Date: 2018-05-17
Location: Germany
Date: 2022-05-10

Date: 2015-04-14
  • Uploaded by jon
Location: Kalama, wa
Date: 2023-04-26
  • Uploaded by Joy
Location: My garden 
Date: 2023-05-15
Location: Germany
Date: 2022-05-11
Location: Bea’s garden
Date: 2021
Location: Germany
Date: 2022-05-08
Location: Kalama, wa
Date: 2023-04-26
  • Uploaded by Joy

Date: 2013-03-02
Location: My garden 
Date: 2023-05-15

Date: 2018-05-17
Location: Southern Maine
Date: 2016-05-22
Pretty unnamed seedling
Location: Bea’s garden
Date: 2021
Location: Western Kentucky
Date: 2011-04-22
Long lasting bloom
Location: Missouri Botanical Gardens
Date: 2019-04-28
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: He’s grden
Date: 2021
Location: Cary, North Carolina private garden
Date: 2023-05-08
Evergreen Azalea acquired 20 years ago, cannot remember the varie
Photo by riverman123
Location: Kalama, wa
Date: 2023-04-26
  • Uploaded by Joy
Location: West Jefferson, North Carolina
Date: 2015-05-19
Location: Falls Church, VA
Date: 2018-05-09
Azalea, same as Slice of Pink Cloud
Location: Toledo Botanical Gardens, Toledo, Ohio
Date: 2019-05-06
Rhododendron x 'Intaglio'.  This obscure but beautiful dwarf cult
Photo by Hamwild
Location: Bea’s garden
Date: 2023-05-12
Location: Fountain, Florida
Date: 2015-04-09
Location: Fairfax, VA | June, 2022
Date: 2022-05-01

small leafed rhodo
Location: Papatowai Otago New Zealand
Date: 2015-11-11
Location: Charleston, SC
Date: 2022-03-20
Location: Kalama, wa
Date: 2023-05-15
  • Uploaded by Joy
Location: Western Kentucky
Date: 2011-04-29
Planted in 1971
Location: Missouri Botanical Gardens
Date: 2019-04-28
Location: Gulf Coast
Date: 2023-09-18
Blooms in Fall, and in Spring!
Location: Opp, AL
Date: 2014-09-26
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: Bea’s garden
Date: 2021
Location: At a local nursery
Exbury azalea seedling
Location: Pacific Northwest zone 8
Date: May 4, 2011
Location: Pacific Northwest zone 8
Date: Apr 16, 2011
Location: In my garden in Kalama, Wa.
Date: 2008-05-23
  • Uploaded by Joy
Location: Blue Ridge, Georgia
Date: 2012-05-16
Photo by KellyGreen
Location: Fairfax, Virginia (May 2022)
Date: 2022-05-13
Location: Fairfax, Virginia (May 2022)
Date: 2022-05-12
On tag
Photo by Hamwild

Date: 2017-06-13
Location: Western Washington
Date: 2015-04-08
Location: KALAMA WA
  • Uploaded by Joy
Location: Daytona Beach, Florida
Date: 2011-03-19
Location: Aberdeen, NC Pages Lake park
Date: 2023-03-27
Location: West Jefferson, North Carolina
Date: 2015-05-19

Date: c. 1849
illustration [as R. lancifolium] by Joseph Dalton Hooker from his

Date: 2018-05-09
Location: Meise botanical garden
Date: 2022-05-17
Location: Bea’s garden
Date: 2023-04-03
Location: Sonoma Horticultural Nursery
Date: 2013-04-25
Exbury azalea seedling
Location: Gulf Coast
Date: 2023-09-18
Blooms in Fall, and in Spring!
Location: Fairfax, VA
Photo by RobinD
Location: Johns Island, SC
Date: 2014-04-11
Location: Kalama, Wa.
  • Uploaded by Joy

Date: 2022-03-17
Location: Pacific Northwest zone 8
Date: Apr 27, 2011
Location: In my garden in Kalama, Wa.
Date: 2008-05-23
  • Uploaded by Joy
Location: Botanical gardens of the State of Georgia, Athens, Georgia
Date: 2017-05-04
Photo by Archivesgirl
Photo by Catmint20906
Location: West Jefferson, North Carolina
Date: 2015-05-19
Location: Daytona Beach, Florida
Date: 2013-01-22
Location: Daytona Beach, Florida
Date: 2011-03-19
Location: Aberdeen, NC Pages Lake park
Date: 2023-03-27
Location: Enterprise, Al. 36330
Date: 2014-04-05

Date: 2018-05-16
Location: Fairfax, VA | June, 2022
Date: 2022-06-03
Photo by keithp2012
Location: Sonoma Horticultural Nursery
Date: 2013-04-25
Exbury azalea seedling
Location: Sonoma Horticultural Nursery
Date: 2013-04-26
Exbury azalea seedling
Photo by Toni
Location: Fort Bragg, Calif.
Date: 2017-12-31
Location: my garden zone 7A Cape Cod, MA
Date: 2017-06-08
Location: Kalama, Wa.
  • Uploaded by Joy
Location: Fairfax, VA | June, 2022
Date: 2022-05-01
Photo by Archivesgirl
Location: Kalama, Wa.
  • Uploaded by Joy
Location: Mom’s
Date: 2018-02-12
Two twined together
Location: West Jefferson, North Carolina
Date: 2015-05-19

Date: 2019-05-01
Location: KALAMA WA
  • Uploaded by Joy
Location: KALAMA WA 
Date: 2021-04-17
  • Uploaded by Joy
Location: National Botanical Garden (DC) | November 2022
Date: 2022-11-26
Location: Fairfax, Virginia (Outdoors)
Location: West Jefferson, North Carolina
Date: 2015-05-19
Location: Spring sale
Date: 2016-04-08
Location: Jenkins Arboretum & Gardens, Devon, Pennsylvania
Date: 2021-05-02
Evergreen Azalea Hybrid (Rhododendron X E6G); Gable Hybrid
Location: Meise botanical garden
Date: 2022-05-17
Photo by rocklady
Location: Kyoto, Japan
Date: 2018-04-08
Location: Falls Church, VA
Date: 2017-04-25
Azalea, same as Slice of Pink Cloud covered with raindrops
Photo by sedumzz
Location: Kyoto, Japan
Date: 2018-04-08
Location: South Australia
Date: 2016-10-26
Location: Photo taken in Portland, OR.
Date: 2015-05-21
Location: Photo taken in Portland, OR.
Date: 2015-05-21
Location: Photo taken in Portland, OR.
Date: 2015-05-21
Location: test garden 
Date: 2015-03-23

Date: 2016-05-27
Location: NYBG 
Date: June 14 22
Location: Geneva, AL.
Date: 2016-03-31
Location: Our yard, Hot Springs Village, AR
Date: 2015-04-15
Pink Ruffles azalea and others
Location: Our yard, Hot Springs Village, AR
Date: 2015-04-15
Azaleas
Location: Kalama, Wa.
  • Uploaded by Joy
Photo by sedumzz
Location: Mason, New Hampshire
Date: May
Photo by paulaf
Photo by sedumzz
Photo by sedumzz
Location: Fairfax, Virginia (Outdoors)
#pollinator
Location: my garden zone 7A Cape Cod, MA
Date: 2017-06-01
Location: Blue Ridge, Georgia
Date: 2012-05-16
Location: In my garden in Kalama, Wa.
Date: 2008-05-23
  • Uploaded by Joy
Location: Fairfax, VA | June, 2022
Location: Roaring Fork Motor Trail, Gatlingburg, Tn.
Date: June 9, 2014
looks more red than orange
Photo by Hamwild

Photo courtesy of: Tom Potterfield
Location: Port Orange, Florida
Date: 2013-03-01
Location: Douthat Park, VA (Near Bedford)

Date: 2017-06-13
Location: My garden in Warrenville, SC
Date: 2017-02-21
Location: My garden in Warrenville, SC
Date: 2017-02-21
Location: KALAMA WA
  • Uploaded by Joy
Location: Seattle WA 
Date: 2007-07-01
Species rhododendrons on the \"Tubal Cain mine trail\" east Olymp
  • Uploaded by gg5
Location: Olympic Peninsula, WA 
Date: 2007-07-01
Species Rhodies
  • Uploaded by gg5
Location: Mom’s front garden
Date: 2018-10-27
Location: Mom’s front garden
Date: 2018-10-27
Location: Daytona Beach, Florida
Date: 2014-03-12
Photo by Catmint20906
Location: Fairfax, Virginia (Outdoors)
Location: zone 8/9 Lake City, Fl.
Date: 2012-02-28
azalea

Date: 2018-05-16
Location: Kyoto, Japan
Date: 2018-04-08
I’ve never seen this plant in person until we were in Japan.  I
Location: central Illinois
Date: 2018-03-04
Location: Kyoto, Japan
Date: 2018-04-08
Location: Kyoto, Japan
Date: 2018-04-08
Location: Falls Church, VA
Date: 2017-04-25
Azalea, same as Slice of Pink Cloud banner covered with raindrops
Location: Daytona Beach, Florida
Date: 2013-02-17
Location: Kyoto, Japan
Date: 2018-04-08
Location: Sonoma Horticultural Nursery
Date: 2013-04-26
Exbury azalea seedling
Location: Mason, New Hampshire
Date: 2016-05-14
Photo by Toni
Location: my garden 
Date: 2017-03-03
Location: test garden 
Date: 2015-03-23
Location: Fountain, Florida
Date: 2015-04-09
Location: NYBG 
Date: June 14 22
Location: central Illinois
Date: 2016-04-01
Location: Middle Tennessee
Date: 2012-03-25
White Rhody
Location: central Illinois
Date: 2017-02-13
Location: Daytona Beach, Florida
Date: 2013-02-01
Photo by sedumzz
Photo by sedumzz
Location: Fairfax, Virginia (Outdoors)
Location: Mason, NH
Date: 2021-05-09
Photo credit: Rob Duval
Location: Fairfax, Virginia (Outdoors)
Location: Sherwood, Oregon
Date: 2014-05-14
Location: Enterprise, Al. 36330
Date: 2015-03-23
Location: Sherwood, Oregon
Date: 2014-05-15
Location: Sherwood, Oregon
Date: 2014-05-14
Photo by Paul2032
Location: Mason, New Hampshire
Date: 2017-05-06
photo credit: Robert Duval
Location: Mason, New Hampshire
Date: 2017-05-06
photo credit: Robert Duval
Location: Sugar Mill Botanical Gardens, Port Orange, Florida
Date: 2013-03-01
Location: Douthat Park, VA (Near Bedford)
Location: Douthat Park, VA (Near Bedford)
Photo by IO1
  • Uploaded by IO1
Location: Meise botanical garden
Date: 2022-05-17
Any ideas which cultivar?
Location: In my garden in Kalama, Wa.
Date: 2008-04-01
  • Uploaded by Joy
Location: central Illinois
Date: 2015-04-21
Location: KALAMA WA 
Date: 2021-04-17
  • Uploaded by Joy
Location: central Illinois
Date: 2015-04-22
Location: Daytona Beach, Florida
Date: 2011-03-18
Location: Botanical Garden Meise (Belgium)
Date: 2016-06-15
Location: Botanical Garden Meise (Belgium)
Date: 2016-06-15
Location: Botanical Garden Meise (Belgium)
Date: 2016-06-15
Location: central Illinois
Date: 2015-06-09
Location: zone 8/9 Lake City, Fl.
Date: 2012-02-28
azalea leaves both old & springtime new
Location: zone 8/9 Lake City, Fl.
Date: 2012-02-28
azalea stem
Location: zone 8/9 Lake City, Fl.
Date: 2012-02-28
azalea bud
Location: Northeastern Pennsylvania
Date: 2012-05-18
Location: Fairfax, VA | September 2022
Date: 2022-09-10
Location: Longwood Gardens, Kennett Square, Pennsylvania
Date: 2017-06-01
A member of Longwood's Bonsai collection
Location: Sonoma Horticultural Nursery
Date: 2013-04-26
Location: Ontario, Canada
Date: 2016-04-05
Location: Ontario, Canada
Date: 2016-04-05
Location: Ontario, Canada
Date: 2016-04-05
Location: Waynesboro MS
Date: 2005-03-17
Location: Houston
Date: 2013-03-03
Location: Houston
Date: 2013-03-02
Location: Houston
Date: 2013-03-02
Location: Houston
Date: 2013-02-25
Location: Fountain, Florida
Date: 2012-03-13
Photo by arejay59
Location: Massachusetts
Date: 2016-06-07
Lost control of it.
Location: my garden zone 7A Cape Cod, MA
Date: 2017-06-03
Back yard
Location: zone 8 North Central, Fl.
Date: 2017-12-21
Azalea
Location: In my Northern California garden
Date: 2012-04-10
Deciduous Azalea
Photo by goodwilly
Location: central Illinois
Date: 2017-02-10
Feb.
Location: Meise botanical garden
Date: 2022-05-17
Location: zone 8/9 Lake City, Fl.
Date: 2012-02-11
Camellias & azalea
Location: zone 8/9 Lake City, Fl.
Date: 2012-02-11
Location: Western Washington
Date: 2015-04-08
Location: central Illinois
Date: 2015-04-21
Location: central Illinois
Date: 2015-04-22
Location: Bullard, Texas
Date: 2017-04-23
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Comments:
  • Posted by Marilyn (Kentucky - Zone 6a) on May 21, 2013 12:18 AM concerning plant:
    "Rhododendron is a genus of over 1000 species of woody plants in the heath family, either evergreen or deciduous. Most species have showy flowers.

    There are over 28,000 cultivars of Rhododendron in the International Rhododendron Registry held by the Royal Horticultural Society. Most have been bred for their flowers, but a few are of garden interest because of ornamental leaves and some for ornamental bark or stems.

    Species of the genus Rhododendron are native to every continent of the world, except South America and Africa.

    A number of insects either target rhododendrons or will opportunistically attack them. Rhododendron borers and various weevils are major pests of rhododendrons, and many caterpillars will preferentially devour them.

    Rhododendron species are used as food plants by the larvae of some members of the order Lepidoptera (butterflies and moths) (See List of Lepidoptera that feed on rhododendrons).

    Both species and hybrid rhododendrons (including azaleas) are used extensively as ornamental plants in landscaping in many parts of the world, and many species and cultivars are grown commercially for the nursery trade. Rhododendrons are often valued in landscaping for their structure, size, flowers, and the fact that many of them are evergreen.

    Like other ericaceous plants, most rhododendrons prefer acid soils with a pH of roughly 4.5-5.5; some tropical Vireyas and a few other rhododendron species grow as epiphytes and require a planting mix similar to orchids. Rhododendrons have fibrous roots and prefer well-drained soils high in organic material. In areas with poorly drained or alkaline soils, rhododendrons are often grown in raised beds using media such as composted pine bark. Mulching and careful watering are important, especially before the plant is established.

    Some species of rhododendron are poisonous to grazing animals because of a toxin called grayanotoxin in their pollen and nectar. People have been known to become ill from eating honey made by bees feeding on rhododendron and azalea flowers."

    Taken from wikipedia's page at: http://en.wikipedia.org/wiki/R...

  • Posted by Sharon (Calvert City, KY - Zone 7a) on Oct 22, 2011 12:28 AM concerning plant:
    My rhododendron was planted in 1971 and has been growing well since that time. As it ages, it is beginning to sprawl, but it is still a beautiful plant that doesn't require a lot of attention. It receives morning sun in its location, and dappled sunlight throughout the day. It has been known to rebloom in late fall, but with fewer blooms than in spring. It's about 5 feet tall and probably as wide as 4 feet.

    Edit: After many many years through all kinds of weather, my rhododendron slowly died and though I tried, I could never revive it. It had recently survived a major ice storm in '09 and the summer of 2012 was spent in extreme drought. Those two factors destroyed a lot of plant life, but I think another factor might be the real culprit. The plant was here when we bought this house, though very very small. It was planted beside a corner brick column which is also a support structure for the house. The bricks and concrete went deep. As the rhody began to grow and increase in all directions, my guess is that it used up soil nutrients more quickly than if it had been planted away from the underground masonry. I failed to even think of that when I noticed its demise had already begun. At that point no amount of watering or feeding was going to help. I should have been amending the soil with good compost during all those years when I simply took it for granted.
  • Posted by KFredenburg (Black Hills, SD - Zone 5a) on Aug 12, 2020 10:36 PM concerning plant:
    Information from "The Audubon Society Field Guide to North American Wildflowers":
    The genus name comes from the Greek rhodon (which means "Rose"), and dendron (which means "tree").
  • Posted by Mindy03 (Delta KY) on Oct 20, 2011 5:37 PM concerning plant:
    Honey bees get nectar from this plant
Plant Events from our members
Seedfork On March 17, 2015 Bloomed
Azaleas starting to bloom!
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Discussion Threads about this plant
Thread Title Last Reply Replies
Untitled by eclayne May 12, 2016 8:31 PM 5
I don't think they grow here by CDsSister Jan 22, 2013 9:21 PM 1
lucky sheep by cliftoncat Nov 15, 2015 3:24 AM 0
Questions (mainly about transplanting cuttings) by jsf67 Feb 3, 2017 7:33 AM 0
incorrect Azalea ID by Calif_Sue Jun 24, 2017 2:14 PM 0
Incorrect cultivar by Calif_Sue Jun 7, 2018 6:55 PM 5
Could it be 'Sappho'? by scvirginia Jul 9, 2022 1:15 PM 0
Wrong cultivar? by sedumzz May 6, 2023 8:28 PM 5

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