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Rhododendron falconeri subsp. eximium

distinguished Falcon rhododendron

A large evergreen shrub or small tree, often multi-stemmed and with a rounded, spreading habit and flaking, red-brown bark. Leaves are large, rounded to ovate, and dark green when mature with cinnamon-coloured felt on the undersides. New leaves and shoots are coated in fine, brown hairs. Produces large clusters of bell-shaped, cream to pale pink flowers with purple markings at the base in spring

Synonyms

Rhododendron eximium

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Ultimate height

2.5–4 metres

Time to ultimate height

5–10 years

Ultimate spread

2.5–4 metres

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Partial shade

Aspect

East–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Ericaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Spreading branched
Potentially harmful: Harmful if eaten. Wear gloves and other protective equipment when handling. Pets (dogs, cats, rabbits, tortoises) Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Rhododendron can be evergreen or deciduous shrubs or trees, with simple leaves, sometimes with a dense colourful indumentum of hairs on the lower side, and funnel-shaped, bell-shaped or tubular flowers that may be solitary or in short racemes
Name status: Correct
Plant range: Bhutan

How to grow

Cultivation

Grow in moist but well-drained, humus rich, acidic soil, in partial or dappled shade. Choose a site away from frost pockets, and sheltered from strong winds which can damage the large leaves. Mulch annually, ideally with leaf mould. See rhododendron cultivation for more detailed advice

Propagation

Propagate by semi-hardwood cuttings in late summer, by layering in autumn, or by grafting in winter

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Flower borders and beds
Wall side borders

Pruning

Pruning group 8 (evergreens)

Pests

May be susceptible to vine weevil, whitefly, rhododendron leafhopper, lacebugs, scale insects, caterpillars and aphids

Diseases

May be susceptible to rhododendron diseases including rhododendron bud blast and rhododendron petal blight, as well as powdery mildews, honey fungus, rust, leafy gall, silver leaf and Phytophthora root and shoot rots

Get involved

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