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Rhododendron ‘John Cairns’

Azalea

Garden

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  • Rhododendron ‘John Cairns’ | Copyright Greenplantswap 2019
  • Rhododendron ‘John Cairns’ | Copyright Greenplantswap 2019
  • Rhododendron ‘John Cairns’ | Copyright Greenplantswap 2019

Features

  • BloomsMarch to July
  • Height1m to 1.5m
  • Spread1m to 2m
  • Growth HabitBushy round
  • Flower ColourOrange-red
  • Leaf ColourGreen shades

Description

Rhododendron ‘John Cairns’ (Azalea). An evergreen, upright, compact plant with a profusion of funnel-shaped, orange-red flowers, borne in early spring.

Characteristics

Woody perennial, Deciduous or Evergreen, Shrub

Origin

Europe, N. America, Tibet and New Guinea

Interest and use

Ornamental, foliage, border, hedging. Spring interest.

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  • Rhododendron ‘John Cairns’ | Copyright Greenplantswap 2019
  • Rhododendron ‘John Cairns’ | Copyright Greenplantswap 2019
  • Rhododendron ‘John Cairns’ | Copyright Greenplantswap 2019

Needs

  • LightFull sun or Part shade
  • HardinessFully hardy (min -15°C)
  • SoilClay, Humus-rich
  • Soil pH5.0 to 7.0
  • WaterMoist

Cultivation

Grows consistently in sun or partial shade.

Propagation

Propagate by simple layering, dropping or semi-ripe cuttings in late summer.

Pests, diseases or disorders

Yellowing leaves are usually caused by poor drainage, excessively deep planting or lime in soil. Weevils and powdery mildew may also cause problems.

Search or browse our Glossary of 3,000+ botanical and plant-related terms


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