R. macrophyllum

Species

Botanical Synonyms	R. californicum ( Hook. f. ) R. washingtonianum
Synonyms	R. 'California Rhododendron' R. 'California Rosebay' R. 'Pacific Rhododendron' R. 'Western Rhododendron'
Subgenus	Hymenanthes
Section	Pontica
Subsection	Pontica
Introduced	1850
First Described	1834 ( G.Don )
Origin	W. North from California to Britisch Columbia, 0-1200 meter
Epiphytic/Terrestrial	terrestrial
Mature Wild Height	700 cm. (23ft.)
Bloom Time	?
Flower	broadly campanulate
Flower Color	pink
Fragrance	?
Leaves	oblong
Leaf persistence	Evergreen
Plant Hardiness	-10 C (14 F)
Flower Bud Hardiness	?
Additional Hardiness Info	H4

Title R. macrophyllum Photo By Harold Fearing Location Fearing's Farm Nursery, Abbotsford, BC, Canada License CC BY-SA 4.0 Attribution Text: Harold Fearing via Rhododendra.com, CC BY-SA 4.0 Sizes small 512 x 718, 76 KB medium 1600 x 2244, 537 KB Full 2185 x 3064, 2 MB
Title R. macrophyllum Photo By Harold Fearing Location Fearing's Farm Nursery, Abbotsford, BC, Canada License CC BY-SA 4.0 Attribution Text: Harold Fearing via Rhododendra.com, CC BY-SA 4.0 Sizes small 768 x 614, 36 KB medium 1600 x 1280, 145 KB Full 4888 x 3913, 4.4 MB
Title R. macrophyllum Photo By Harold Fearing Location Fearing's Farm Nursery, Abbotsford, BC, Canada License CC BY-SA 4.0 Attribution Text: Harold Fearing via Rhododendra.com, CC BY-SA 4.0 Sizes small 768 x 606, 24 KB medium 1600 x 1262, 89 KB Full 2800 x 2208, 843 KB
Title R. macrophyllum Photo By Harold Fearing Location Fearing's Farm Nursery, Abbotsford, BC, Canada License CC BY-SA 4.0 Attribution Text: Harold Fearing via Rhododendra.com, CC BY-SA 4.0 Sizes small 768 x 580, 32 KB medium 1600 x 1208, 128 KB Full 3114 x 2350, 2 MB
Title R. macrophyllum Photo By Harold Fearing Location Fearing's Farm Nursery, Abbotsford, BC, Canada License CC BY-SA 4.0 Attribution Text: Harold Fearing via Rhododendra.com, CC BY-SA 4.0 Sizes small 512 x 764, 76 KB medium 1600 x 2390, 535 KB Full 2592 x 3872, 2.6 MB
Title R. macrophyllum Photo By Thatrhodylady Date Taken May 23, 2026 Location Rhododendron Species Botanical Garden License CC BY 4.0 Attribution Text: Thatrhodylady via Rhododendra.com, CC BY 4.0 Sizes small 648 x 1152, 62 KB medium 1350 x 2400, 331 KB Full 2296 x 4080, 3.2 MB Description R. macrophyllum white flowers opening from pink buds.
Title macrophyllum Photo By Susan Lightburn Date Taken June 8, 2013 Location Rhododendron Lake, Vancouver Island, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 38 KB medium 1200 x 797, 274 KB
Title macrophyllum Photo By Hank Helm Date Taken May 17, 2012 Location Hank Helm Garden, Bainbridge Island, WA, USA License Copyright, Hank Helm. Sizes small 768 x 576, 39 KB medium 1200 x 900, 346 KB Description macrophyllum Whidbey cutting
Title macrophyllum Photo By Hank Helm Date Taken June 1, 2009 Location Hank Helm Garden, Bainbridge Island, WA, USA License Copyright, Hank Helm. Sizes small 768 x 576, 44 KB medium 1200 x 900, 361 KB
Title macrophyllum Photo By Hank Helm Date Taken May 18, 2006 Location Hank Helm Garden, Bainbridge Island, WA, USA License Copyright, Hank Helm. Sizes small 768 x 576, 18 KB medium 1200 x 900, 213 KB Description macrophyllum Barto White
Title macrophyllum Photo By Dr. Stephan Bubert Date Taken May 29, 2012 Location Private garden, Hamburg, Germany License Copyright, Dr. Stephan Bubert. Sizes small 768 x 576, 40 KB medium 1200 x 900, 297 KB Description IJ084 RSF, planted 1993
Title macrophyllum Photo By Hank Helm Date Taken Location Chimacum Woods Garden, Washington, USA License Copyright, Hank Helm. Sizes small 768 x 514, 24 KB medium 1024 x 685, 75 KB Description seedling from the form collected from Whidbey Island
Title macrophyllum Photo By Hank Helm Date Taken May 12, 2007 Location Northern California, near the Oregon border On the highway from Crescent City to Grants Pass Oregon. License Copyright, Hank Helm. Sizes small 768 x 576, 39 KB medium 1200 x 900, 280 KB
Title macrophyllum Photo By Hank Helm Date Taken May 20, 2007 Location Oregon, near Dunes Golf Course, just outside Bandon, USA License Copyright, Hank Helm. Sizes small 768 x 576, 42 KB medium 1200 x 900, 341 KB
Title macrophyllum Photo By Hank Helm Date Taken May 20, 2007 Location Oregon, near Dunes Golf Course, just outside Bandon, USA License Copyright, Hank Helm. Sizes small 768 x 576, 56 KB medium 1200 x 900, 396 KB
Title macrophyllum Photo By Susan Lightburn Date Taken June 4, 2006 Location Rhododendron Lake, Nanoose, Vancouver Island, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small 768 x 1024, 64 KB medium 960 x 1280, 485 KB
Title macrophyllum Photo By Susan Lightburn Date Taken June 4, 2006 Location Rhododendron Lake, Nanoose, Vancouver Island, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small 768 x 576, 47 KB medium 1280 x 960, 453 KB
Title macrophyllum Photo By Harry R. Wright Date Taken June 2006 Location Rhododendron Lake, Vancouver Island, BC, Canada License Copyright, Harry R. Wright. Sizes small 640 x 474, 59 KB medium 640 x 475, 200 KB
Title macrophyllum Photo By Susan Lightburn Date Taken May 28, 2006 Location Mount Elphinstone, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small 768 x 576, 105 KB medium 1200 x 900, 366 KB Description Native N. American species in its natrual habitat
Title macrophyllum Photo By Garth Wedemire Date Taken June 18, 2008 Location Mount Elphinstone, Sunshine Coast, British Columbia, Canada License CC BY 4.0 Attribution Text: Garth Wedemire via Rhododendra.com, CC BY 4.0 Sizes small 768 x 512, 19 KB medium 1200 x 800, 86 KB
Title macrophyllum Photo By Garth Wedemire Date Taken June 18, 2008 Location Mount Elphinstone, Sunshine Coast, British Columbia, Canada License CC BY 4.0 Attribution Text: Garth Wedemire via Rhododendra.com, CC BY 4.0 Sizes small 768 x 1152, 146 KB medium 1200 x 1800, 294 KB
Title macrophyllum Photo By Susan Lightburn Date Taken May 28, 2006 Location Mount Elphinstone, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small
Title macrophyllum Photo By Garth Wedemire Date Taken May 28, 2006 Location Skagit River Valley, BC, Canda License CC BY 4.0 Attribution Text: Garth Wedemire via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 23 KB medium 1200 x 798, 97 KB
Title macrophyllum Photo By Susan Lightburn Date Taken June 8, 2013 Location Rhododendron Lake, Vancouver Island, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 39 KB medium 1200 x 797, 223 KB
Title macrophyllum Photo By Susan Lightburn Date Taken June 8, 2013 Location Rhododendron Lake, Vancouver Island, BC, Canada License CC BY 4.0 Attribution Text: Susan Lightburn via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 97 KB medium 1200 x 797, 497 KB
Title macrophyllum Photo By Hank Helm Date Taken May 15, 2007 Location NE of Santa Cruz and SW of Bag Basin Redwood Park in California License Copyright, Hank Helm. Sizes small 768 x 576, 132 KB medium 1200 x 900, 618 KB Description Isolated population probably does not exceed 50 plants. Only one known population further south.
Title macrophyllum Photo By Hank Helm Date Taken May 15, 2007 Location NE of Santa Cruz and SW of Bag Basin Redwood Park in California License Copyright, Hank Helm. Sizes small 768 x 576, 105 KB medium 1200 x 900, 536 KB Description Isolated population probably does not exceed 50 plants. Only one known population further south.
Title macrophyllum Photo By Hank Helm Date Taken May 15, 2007 Location NE of Santa Cruz and SW of Bag Basin Redwood Park in California License Copyright, Hank Helm. Sizes small 768 x 576, 144 KB medium 1200 x 900, 676 KB Description Isolated population probably does not exceed 50 plants. Only one known population further south.
Title macrophyllum Photo By Garth Wedemire Date Taken July 12, 2005 Location Rhododendron Wayside in Manning Park at the Skagit River, British Columbia, Canada License CC BY 4.0 Attribution Text: Garth Wedemire via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 25 KB medium 1200 x 798, 101 KB
Title macrophyllum Photo By Garth Wedemire Date Taken May 28, 2006 Location Skagit River Valley, BC, Canda License CC BY 4.0 Attribution Text: Garth Wedemire via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 50 KB medium 1200 x 798, 155 KB
Title macrophyllum Photo By Garth Wedemire Date Taken July 12, 2005 Location Rhododendron Wayside in Manning Park at the Skagit River, British Columbia, Canada License CC BY 4.0 Attribution Text: Garth Wedemire via Rhododendra.com, CC BY 4.0 Sizes small 768 x 510, 21 KB medium 1200 x 798, 93 KB
Title macrophyllum Photo By Hank Helm Date Taken Location in the wild, Camp Union, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 55 KB medium 1200 x 900, 336 KB
Title macrophyllum Photo By Hank Helm Date Taken Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 43 KB medium 1200 x 900, 302 KB Description macrophyllum Neletta
Title macrophyllum Photo By Hank Helm Date Taken May 21, 2007 Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 68 KB medium 1200 x 900, 401 KB
Title macrophyllum Photo By Hank Helm Date Taken Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 33 KB medium 1200 x 900, 269 KB
Title macrophyllum Photo By Hank Helm Date Taken Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 30 KB medium 1200 x 900, 261 KB
Title macrophyllum Photo By Hank Helm Date Taken May 27, 2006 Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 42 KB medium 1200 x 900, 367 KB
Title macrophyllum Photo By Hank Helm Date Taken Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 640 x 480, 57 KB medium 640 x 480, 75 KB
Title macrophyllum Photo By Hank Helm Date Taken May 27, 2006 Location in the wild, Washington State, USA License Copyright, Hank Helm. Sizes small 768 x 576, 50 KB medium 1200 x 900, 334 KB
Title macrophyllum Photo By Dick Cavender Date Taken Location SW Oregon a few miles from the coast and from the California boarde License Copyright, Dick Cavender. Sizes small Description The red (new) foliage probably caused by the Serpentine soil
Title macrophyllum Photo By Dick Cavender Date Taken Location SW Oregon a few miles from the coast and from the California boarde License Copyright, Dick Cavender. Sizes small 768 x 516, 58 KB medium 1200 x 805, 235 KB Description R. macrophyllum with a witches broom
Title macrophyllum Photo By Herman Van Ree Date Taken August 21, 2009 Location UBC Botanical Gardens, Vancouver License Copyright, Herman Van Ree. Sizes small
Title macrophyllum Photo By Herman Van Ree Date Taken August 21, 2009 Location UBC Botanical Gardens, Vancouver License Copyright, Herman Van Ree. Sizes small 768 x 512, 18 KB medium 1200 x 800, 115 KB Tag
Title macrophyllum Photo By Dennis McKiver Date Taken May 12, 2012 Location Mendocino Coast Botanical Garden, Fort Bragg, CA, USA License Copyright, Dennis McKiver. Sizes small 768 x 576, 33 KB medium 1200 x 900, 267 KB Description macrophyllum 'Albion Ridge'
Title macrophyllum Photo By Dennis McKiver Date Taken May 14, 2011 Location Mendocino Coast Botanical Garden, Fort Bragg, CA, USA License Copyright, Dennis McKiver. Sizes small 768 x 576, 97 KB medium 1200 x 900, 502 KB Description macrophyllum 'Albion Ridge'
Title macrophyllum Photo By Hank Helm Date Taken Location Hank Helm Garden, Bainbridge Island, WA, USA License Copyright, Hank Helm. Sizes small 768 x 576, 47 KB medium 1200 x 900, 313 KB Description macrophyllum 'Seven Devils'
Title macrophyllum Photo By Paul & Linda Lawry Date Taken Location private garden Lantzville, Vancouver Island, BC, Canada License Copyright, Paul & Linda Lawry. Sizes small 632 x 480, 29 KB medium 632 x 480, 46 KB Description macrophyllum 'Seven Devils'
Title macrophyllum Photo By Dick Cavender Date Taken Location Red's Rhodies, Sherwood Oregon USA License Copyright, Dick Cavender. Sizes small 768 x 512, 32 KB medium 768 x 512, 35 KB Description macrophyllum 'Vulcan Lake White'
Title macrophyllum Photo By Dick Cavender Date Taken Location Red's Rhodies, Sherwood Oregon USA License Copyright, Dick Cavender. Sizes small Description macrophyllum 'Iron Mountain White #1'

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R. macrophyllum

Species