This slow-growing shrub loves shade.
It is anideal plant for woodland gardens, particularly those with excessive shade.
Do note, though, that all parts of this rhododendron shrub are toxic to humans and pets.
The Spruce / Evgeniya Vlasova
Catawba Rhododendron Care
Here are the main care requirements for the Catawba rhododendron.
Light
Give Catawba rhododendron a little morning sun at the northern end of its range.
At the southern end of its range, give it full shade.
The Spruce / Evgeniya Vlasova
Soil
check that that the soil for these shrubs drains well.
If the soil does not currently drain well,amend the soil with organic matter.
Temperature and Humidity
Catawba rhododendrons prefer cool temperatures and high humidity.
The Spruce / Evgeniya Vlasova
Fertilizer
Fertilize Catawba rhododendron in spring yearly byworking compost into the soil.
Plant several Catawba rhododendron shrubs together to create an attractive living privacy screen.
Pruning
Start by pruning off dead or damaged branches just after your rhododendron has finished flowering.
The Spruce / Evgeniya Vlasova
Yearly pruning will promote a more compact shape.
The best potting soil is slightly acidic and mixed with peat moss.
Put the container in dappled sunlight and avoid direct intense sun.
The Spruce / Evgeniya Vlasova
Before replanting, soak the root ball in water first to allow the roots to untangle.
Overwintering
In temperate areas, no winter care is needed.
If growing in containers, move them into your garage or an insulated area.
Fungal diseases that may affect rhododendrons include various cankers andgray mold.
How Long does Catawba Rhododendron Bloom?
The blooms can last on the plant anywhere from two to seven months depending on climate.
In chillier weather, each bloom’s life cycle may be shortened slightly.
What does Catawba Rhododendron’s Flowers Look and Smell Like?
Catawba rhododendron boasts large, rounded, clusters of purple blooms.
double-check your plant has the necessary conditions of dappled sun and well-draining soil.
Keep in mind that young plants may not bloom immediately.
Leaves Turning Yellow
Yellowing leaves often indicate soil that is too alkaline; rhododendrons need acidic soil.
You canamend alkaline soilwith various acidic additives like minerals and fertilizers.
Wilting Leaves
If you notice wilting or drooping leaves, you may have waterlogged your plant.
see to it your soil is moist and well-drained, particularly if you live somewhere prone to heavy rains.
Acultivarof thispopular flowering shrubwith white flowers isRhododendron’Catawbiense Album'.
These robust shrubs can live to be 100 years old.
If you’re short on space, try planting azaleas.
These small, compact cousins of rhododendrons offer beautiful blooms but take up less room.
There are manytypes of azaleas to consider.
North Carolina State University Extension.
Azalea and Rhododendron Diseases.
Clemson University Cooperative Extension - Home and Garden Information Center.
