Rhododendron 'Northern Hi-Lights' (A)

RHS Plant Profile
rhododendron 'Northern Hi-Lights'
Shrubs

A deciduous azalea, with pale yellow flowers with a wavy edge and vivid yellow blotch, maturing to yellowish white, with a moderate scent.

Position

Partial shade

Soil Types

Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
5–10 years
Max Spread
1-1.5 metres
Max Height
1-1.5 metres

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid

Position

Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed
Hardiness
H6

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Ericaceae
Native to GB/Ireland
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
Accepted
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

How to Grow

Cultivation

Grow in moist but well-drained, humus rich acid soil in part shade; see rhododendron cultivation

Propagation

Propagate by semi-ripe cuttings in late summer

Suggested planting locations and garden types

  • Cottage and informal garden
  • Low Maintenance

Pruning

Pruning group 8

Pests

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

Diseases

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