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Rhododendron of the Year Plant Awards: 2023


North West USA and Canada Region

R. 'Starbright Champagne'

Elepidote Rhododendron: 'Starbright Champagne'

Flower pale yellow with a deep red throat and prominent red spotting and streaking, broadly funnel-campanulate, 3" across, deeply-cut lobes with rather pointed tip.  Dome-shaped truss holds 15 flowers.  Blooms early season.  Leaves oblong, flat, broadly acute apex, cordate base, 6" long, dull green, retained 2 years.  Dense plant habit.  Grows to a height of 3 ft. in 10 years.  Plant is hardy to at least 10F (-12C).  Hybridized by Fujioka.

 
R. pemakoensepemakoense

Lepidote Rhododendron: R. pemakoense

Flower pink to pale purplish-mauve, tubular funnel-shaped, 2" across.  Truss has 1 or 2 flowers.  Blooms early to early midseason.  Leaves oblanceolate or obovate, up to 1⅛" long, lower surface scaly and glaucous.  Dense, mounding, often stoloniferous plant habit.  Low-growing, typically 1 ft. in 10 years.  Cold hardy to 0F (-18C).  Species found in the wild in China (SE Tibet) and in India (Arunachal Pradesh).

 
R. 'Mother's Day'

Evergreen Azalea: 'Mother's Day'

Flower strong red with faint deep red dorsal spotting, openly funnel-shaped, 2" across, hose-in-hose to semi double.  Inflorescence 2-3 flowered.  Blooms early midseason.  Leaves 1" to 1⅛" long, bright green, tinged red.  Spreading plant habit.  Grows to a typical height of 6 ft. in 10 years.  Hybridized by van Hecke.

 
R. 'Irene Koster'

Deciduous Azalea: 'Irene Koster'

Flower white flushed strong pink with a yellow blotch on upper lobes and brownish orange spotting, tubular funnel-shaped, wavy edged, 2" across, fragrant.  Blooms late midseason.  Leaves elliptic, dark green, deciduous.  Upright, open plant habit.  Grows to a typical height of 6 ft. in 10 years.  Hardy to -15F (-26C).  Hybridized by Koster & Sons.  Received the Royal Horticultural Society's Award of Garden Merit in 1993.

Photos (top to bottom) by Ken Cox, Hank Helm, Odo Tschetsch, courtesy of Monrovia Nursery.

Prior Years Selections for North West USA Region

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004


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