Both rhododendrons
and azaleas
are common sights along the Pacific coast. One of the most common varieties of
these is the Western azalea plant. Read on to find out what a Western azalea is
and tips on growing Western azalea plants.
What is a Western Azalea?
Western azalea plants (Rhododendron
occidentale) are deciduous
shrubs of about 3-6 feet (1-2 m.) tall and wide. They are commonly found in
moist areas such as along the coast or along streambeds.
They leaf out in the spring followed by brilliant blossoms
of fragrant blooms in the late spring – May to June. The trumpet-shaped blooms
may be pure white to pale pink and occasionally marked with orange or yellow.
These are borne in clusters of 5-10 showy blooms.
Newly emerging twigs are red-to-orange-brown but, as they age, attain a gray-brown color.
Where Do Western Azaleas Grow?
Western azalea plants are one of two azalea shrubs native to Western North America.
Also called California azalea, this azalea occurs north into
the Oregon coast and into the southern mountains of San Diego County as well as
into the Cascade and Sierra Nevada Mountain ranges.
R. occidentale was
first described by explorers in the 19th century. Seeds were sent to Veitch
Nursery in England in 1850, making the Western azalea directly responsible for
the evolution of deciduous hybrid azaleas sold today.
Growing Western Azalea Shrubs
Native Western azalea is known to thrive in serpentine soils, which are rich in magnesium and usually in iron but poor in calcium. Only certain plant species can tolerate these concentrations of minerals, which make native azalea shrubs interesting to varying scientific groups.
This doesn’t mean that you can’t grow Western azalea in your landscape. Western azalea can be grown in USDA zones 5-10.
It needs enough light to bloom well but will tolerate light shade and requires acidic, well-drained, moist soil. Plant it shallowly in a location protected from winter winds.
Remove spent flowers to promote new growth and attract butterflies
and hummingbirds.
Both rhododendrons
and azaleas
are common sights along the Pacific coast. One of the most common varieties of
these is the Western azalea plant. Read on to find out what a Western azalea is
and tips on growing Western azalea plants.
What is a Western Azalea?
Western azalea plants (Rhododendron
occidentale) are deciduous
shrubs of about 3-6 feet (1-2 m.) tall and wide. They are commonly found in
moist areas such as along the coast or along streambeds.
They leaf out in the spring followed by brilliant blossoms
of fragrant blooms in the late spring – May to June. The trumpet-shaped blooms
may be pure white to pale pink and occasionally marked with orange or yellow.
These are borne in clusters of 5-10 showy blooms.
Newly emerging twigs are red-to-orange-brown but, as they age, attain a gray-brown color.
Where Do Western Azaleas Grow?
Western azalea plants are one of two azalea shrubs native to Western North America.
Also called California azalea, this azalea occurs north into
the Oregon coast and into the southern mountains of San Diego County as well as
into the Cascade and Sierra Nevada Mountain ranges.
R. occidentale was
first described by explorers in the 19th century. Seeds were sent to Veitch
Nursery in England in 1850, making the Western azalea directly responsible for
the evolution of deciduous hybrid azaleas sold today.
Growing Western Azalea Shrubs
Native Western azalea is known to thrive in serpentine soils, which are rich in magnesium and usually in iron but poor in calcium. Only certain plant species can tolerate these concentrations of minerals, which make native azalea shrubs interesting to varying scientific groups.
This doesn’t mean that you can’t grow Western azalea in your landscape. Western azalea can be grown in USDA zones 5-10.
It needs enough light to bloom well but will tolerate light shade and requires acidic, well-drained, moist soil. Plant it shallowly in a location protected from winter winds.
Remove spent flowers to promote new growth and attract butterflies
and hummingbirds.