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Rhododendron maddenii (Major Madden's rhododendron )

Intermediate
skill rating
2 hours care
per year
2.5m
Max height
2.5m
Max spread
5-10 years
To maturity

Plant details

Botanical name

Rhododendron maddenii

Other names

Major Madden's rhododendron

Genus

Rhododendron Rhododendron

Species

R. maddenii - R. maddenii is an upright, multi-stemmed, borderline hardy, evergreen shrub with lance-shaped, obovate, or elliptic, dark green leaves, brown-scaly beneath, and clusters of two to four, funnel-shaped, strongly fragrant, sometimes pink-flushed, white flowers in late spring and early summer.


Rhododendron maddenii is: Evergreen

Habit

Upright

Flower

Flushed pink, White in Spring; White, Flushed pink in Summer

Foliage

Dark-green in All seasons

How to care

Watch out for

Specific pests

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

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

General care

Pruning

Pruning group 8.

Propagation

Will not come true to type from seed.

Propagation methods

Semi-hardwood cuttings, Grafting, Layering


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Where to grow

Rhododendron maddenii (Major Madden's rhododendron ) will reach a height of 2.5m and a spread of 2.5m after 5-10 years.

Suggested uses

Banks and Slopes, Beds and borders, Bees (attract & feed bees), City, Cottage/Informal

Cultivation

Grow in humus-rich, moist but well-drained, acid soil in partial shade. Prefers dappled shade. Mulch to retain soil moisture. Do not allow to dry out. Protect from strong, winter wind and avoid waterlogged conditions. Protect from frost to prevent damage to flowers.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained

Soil pH

Acid

Light

Partial Shade, Full Shade

Aspect

North, South, East, West

Exposure

Sheltered

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

Tender in frost (H3)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Rhododendron maddenii

Other names

Major Madden's rhododendron

Genus

Rhododendron Rhododendron

Species

R. maddenii - R. maddenii is an upright, multi-stemmed, borderline hardy, evergreen shrub with lance-shaped, obovate, or elliptic, dark green leaves, brown-scaly beneath, and clusters of two to four, funnel-shaped, strongly fragrant, sometimes pink-flushed, white flowers in late spring and early summer.

Native to

Burma, Himalayas, Southwestern China

Foliage

Evergreen

Habit

Upright


Colour

Flower

Flushed pink, White in Spring; White, Flushed pink in Summer

Foliage

Dark-green in All seasons


How to care

Watch out for

Specific pests

Aphids , Caterpillars , Leafhoppers , Vine weevil

Specific diseases

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

General care

Pruning

Pruning group 8.

Propagation

Will not come true to type from seed.

Propagation methods

Semi-hardwood cuttings, Grafting, Layering


Monthly care advice


Where to grow

Rhododendron maddenii (Major Madden's rhododendron ) will reach a height of 2.5m and a spread of 2.5m after 5-10 years.

Suggested uses

Banks and Slopes, Beds and borders, Bees (attract & feed bees), City, Cottage/Informal

Cultivation

Grow in humus-rich, moist but well-drained, acid soil in partial shade. Prefers dappled shade. Mulch to retain soil moisture. Do not allow to dry out. Protect from strong, winter wind and avoid waterlogged conditions. Protect from frost to prevent damage to flowers.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained

Soil pH

Acid

Light

Partial Shade, Full Shade

Aspect

North, South, East, West

Exposure

Sheltered

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

Tender in frost (H3)

USDA zones

Zone 10, Zone 9, Zone 8

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This plant likes... Garden match
Soil types: Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained Tell us...
Soil pH: Acid Tell us...
Light: Partial Shade, Full Shade Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Tender in frost (H3) Tell us...

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