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ShrubsConservatory Greenhouse

Rhododendron 'Fragrantissimum'
  • RHS AGM

rhododendron 'Fragrantissimum'

A distinctive evergreen shrub, rather open in growth, with hairy, corrugated dark green leaves. Funnel-shaped, spicily-fragrant flowers, to 10cm in width, white with a rose-pink flush and yellow in the throat, are held in small trusses in mid spring

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
10–20 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid
Colour & scent
StemFlowerFoliageFruit
Spring Pink White Yellow Green
Summer Green
Autumn Green
Winter Green
Position
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Ericaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Harmful if eaten. Wear gloves and other protective equipment when handling
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

Accepted

How to grow

Cultivation

Under glass grow in ericaceous compost, in bright filtered light with moderate to high humidity. During growth, water freely with soft water and apply a balanced liquid fertiliser monthly. Keep just moist in winter. Can be grown outdoors in a sheltered position in the mildest locations

Propagation

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

Suggested planting locations and garden types
  • Architectural
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Low Maintenance
Pruning

Pruning group 8; deadhead after flowering

Pests

May be susceptible to vine weevil, rhododendron and azalea whitefly, rhododendron leafhopper, pieris lacebug, scale insects, caterpillars and aphids

Diseases

May be susceptible to various Rhododendron diseases including powdery mildews, rhododendron petal blight, rhododendron bud blast, silver leaf and honey fungus

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