R. griersonianum

Species

Subgenus	Hymenanthes
Section	Pontica
Subsection	Griersoniana
Introduced	1917
First Described	1924 ( Balf.f., Forrest )
Origin	W. Yunnan and Upper Burma 2100-2700 meter
Epiphytic/Terrestrial	terrestrial
Mature Wild Height	250 cm. (8ft.)
Bloom Time	very late
Flower	funnel-shaped
Flower Color	red
Fragrance	?
Leaves	lanceolate
Leaf persistence	Evergreen
Minimum Hardiness	-5 C (23 F)
Additional Hardiness Info	H3

Title R. griersonianum Photo By Thatrhodylady Date Taken June 13, 2026 Location Rhododendron Species Botanical Garden License CC BY 4.0 Attribution Sizes small 648 x 1152, 76 KB medium 1350 x 2400, 391 KB Full 2296 x 4080, 3 MB Description R. griersonianum this shrub is more coral color and less red than the others in the species here. But the throat and corolla tube are still red. You can see the indumentum in the upper left corner.
Title R. griersonianum Photo By Thatrhodylady Date Taken June 13, 2026 Location Rhododendron Species Botanical Garden License CC BY 4.0 Attribution Sizes small 648 x 1152, 50 KB medium 1350 x 2400, 210 KB Full 2296 x 4080, 2.8 MB Description R. griersonianum close shot on flower, stamen, stigma, and the little white hairs on the pedicel calyx corolla tube.
Title R. griersonianum Photo By Thatrhodylady Date Taken June 13, 2026 Location Rhododendron Species Botanical Garden License CC BY 4.0 Attribution Sizes small 648 x 1152, 64 KB medium 1350 x 2400, 254 KB Full 2296 x 4080, 2.9 MB Description R. griersonianum flowers
Title griersonianum Photo By Garth Wedemire Date Taken June 5, 2008 Location Mike Bale's Garden: Lu Zhu, Agassiz, BC, Canada License CC BY 4.0 Attribution Sizes small medium
Title griersonianum Photo By Herman Van Ree Date Taken May 12, 2010 Location own garden Nunspeet, Netherlands License Copyright, Herman Van Ree. Sizes small medium
Title griersonianum Photo By Garth Wedemire Date Taken June 5, 2008 Location Mike Bale's Garden: Lu Zhu, Agassiz, BC, Canada License CC BY 4.0 Attribution Sizes small medium
Title griersonianum Photo By Herman Van Ree Date Taken March 23, 2010 Location own garden Nunspeet, Netherlands License Copyright, Herman Van Ree. Sizes small medium Description waking up after long winter