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Rhododendron 'Cynthia' (Rhododendron 'Cynthia')

Intermediate
skill rating
2 hours care
per year
6m
Max height
6m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Rhododendron 'Cynthia'

Other names

Rhododendron 'Cynthia'

Genus

Rhododendron Rhododendron

Variety or Cultivar

'Cynthia' _ 'Cynthia' is a very large evergreen shrub with oblong leaves and large trusses of funnel-shaped, dark-pink flowers.


Rhododendron 'Cynthia' is: Evergreen

Habit

Rounded, Bushy

Awards

RHS AGM (Award of Garden Merit)

Flower

Dark-pink in Spring

Foliage

Dark-green in All seasons

How to care

Watch out for

Specific pests

Aphids , Caterpillars , Leafhoppers , Vine weevil , Lacebugs Aphids , Caterpillars , Leafhoppers , Vine weevil , Lacebugs

Powdery mildew , Rhododendron bud blast , Rhododendron petal blight , Silver leaf Powdery mildew , Rhododendron bud blast , Rhododendron petal blight , Silver leaf

General care

Propagation methods

Semi-hardwood cuttings, Grafting, Layering


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Where to grow

Rhododendron 'Cynthia' (Rhododendron 'Cynthia') will reach a height of 6m and a spread of 6m after 10-20 years.

Suggested uses

Beds and borders, Wallside and trellises, Banks and Slopes, Cottage/Informal

Cultivation

Plant in moist, humus-rich, free-draining, acid soil in sun or dappled shade. Plant shallowly. Protect from frost to prevent damage to flowers.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

Botanical name

Rhododendron 'Cynthia'

Other names

Rhododendron 'Cynthia'

Genus

Rhododendron Rhododendron

Variety or Cultivar

'Cynthia' _ 'Cynthia' is a very large evergreen shrub with oblong leaves and large trusses of funnel-shaped, dark-pink flowers.

Foliage

Evergreen

Habit

Rounded, Bushy

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Dark-pink in Spring

Foliage

Dark-green in All seasons


How to care

Watch out for

Specific pests

Aphids , Caterpillars , Leafhoppers , Vine weevil , Lacebugs

Specific diseases

Powdery mildew , Rhododendron bud blast , Rhododendron petal blight , Silver leaf

General care

Propagation methods

Semi-hardwood cuttings, Grafting, Layering


Monthly care advice


Where to grow

Rhododendron 'Cynthia' (Rhododendron 'Cynthia') will reach a height of 6m and a spread of 6m after 10-20 years.

Suggested uses

Beds and borders, Wallside and trellises, Banks and Slopes, Cottage/Informal

Cultivation

Plant in moist, humus-rich, free-draining, acid soil in sun or dappled shade. Plant shallowly. Protect from frost to prevent damage to flowers.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6

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This plant likes... Garden match
Soil types: Clay, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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