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Northwest Blooms · Shrubs

Rhododendron x kosteranum 'Northern Hi-Lights'

Northern Hi-Lights Azalea

Rhododendron x kosteranum 'Northern Hi-Lights'
Family
Ericaceae
Height
4 to 6 ft
Width
4 to 6 ft
Flower color
Creamy white to yellow flowers with a bold golden-yellow blotch in the throat
Foliage color
Deciduous medium-green leaves
Bloom time
Mid to late spring (April-May)
Light
Full sun to part shade
Water
Moderate
Maintenance
Low; remove spent flowers; prune lightly after bloom as needed
Growing zone
USDA zones 4 to 8
Wildlife
Flowers attract bees and other pollinators

About this plant

Rhododendron x kosteranum 'Northern Hi-Lights' is a deciduous azalea with an upright, spreading habit and fresh green foliage that turns warm shades of yellow and orange in autumn. In mid to late spring, fragrant trusses of funnel-shaped flowers open creamy white to yellow, each bloom marked by a dark yellow flare and subtle red or orange spotting in the throat. The flowers appear before or just as the leaves expand, creating a luminous spring display.

This cultivar was developed as part of a breeding program aimed at producing cold-hardy azaleas with refined flower color and fragrance. 'Northern Hi-Lights' combines dependable spring bloom with seasonal foliage interest and is well suited to naturalistic plantings, mass groupings, and foundation areas in cool-climate gardens.

Works well in

Sun Gardens · Foundation Plantings · Cottage Gardens · Fragrant Gardens

Companion plants

Tulips · Beautyberry · Coreopsis · Maiden grass · Sea thrift · California lilac

Design tip

Group several ‘Northern Hi-Lights’ together rather than scattering individual shrubs, allowing their upright, spreading forms to merge into a generous informal mass. This approach gives the soft spring display greater impact and makes the warm autumn foliage read as one broad sweep.