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Rhododendron luteum (A)

yellow azalea

A bushy deciduous shrub of open growth to 4m tall, with oblong leaves turning orange, purple and red in autumn. Very fragrant bright yellow, funnel-shaped flowers, 5cm in width, are produced in late spring and early summer

Other common names
sweet pontica azalea
Synonyms
Azalea ponticum
Azalea pontica
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Size
Ultimate height
2.5–4 metres
Time to ultimate height
10–20 years
Ultimate spread
2.5–4 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained
pH
Acid
Colour & scent
StemFlowerFoliageFruit
Spring Yellow Green
Summer Green
Autumn Orange Purple Red
Winter
Position
  • Full sun
  • Partial shade
Aspect

West–facing or North–facing or ·¡²¹²õ³Ù–f²¹³¦¾±²Ô²µ

Exposure
Sheltered
Hardiness
H6
Botanical details
Family
Ericaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
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

Horticultural Group
Azaleas can be deciduous or evergreen, with mostly small, frequently fragrant, funnel-shaped flowers in spring or early summer; deciduous azaleas often have good autumn colour
Plant range
E Europe to Caucasus

How to grow

Cultivation

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN ENGLAND AND WALES. Gardeners possessing them should undertake measures to control them. See 911±¬ÁÏ advice on invasive non-native species for further information

Propagation

Please see cultivation notes

Suggested planting locations and garden types
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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