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Rhododendron thomsonii | Plant Finder | Fill My Garden

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Plants > Shrubs

Rhododendron thomsonii

Rhododendron thomsonii

Genus: Rhododendron
Family: Ericaceae

About this plant

An evergreen shrub or small tree, usually up to about 3m high in cultivation, though it can reach up to 6m in its native habitat. Bark is smooth, reddish and peeling, and leaves are rounded to oval, and matt dark green, with a bluish tint when young. Produces loose clusters of 3-10 bell-shaped, rich crimson flowers in mid to late spring

Growing Information

Height

2.5-4 Metres

Spread

2.5-4 Metres

Hardiness

Foliage

Evergreen

Growing Conditions

Sunlight

Partial Shade

Soil

ChalkLoamSandy

Acid

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Poorly Drained

Aspect

North FacingEast Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in moist but well-drained, humus rich, acidic soil, in partial or dappled shade. Choose a site away from frost pockets and sheltered from strong winds; flowers may need protection from late frosts. Do not allow plants to dry out, and mulch annually, ideally with leaf mould. See rhododendron cultivation for more detailed advice

Pruning

Minimal pruning required, see pruning group 8 (evergreens)

Propagation

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

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 powdery mildews, honey fungus, silver leaf and Phytophthora, as well as more specific Rhododendron diseases

Garden Uses

Uses

Cottage InformalGround Cover

Planting Places

OutdoorWall Trained

Season of Interest

AutumnWinterSpringSummer

Size & Characteristics

Height

2.5-4 Metres

Spread

2.5-4 Metres

Habit

Climbing

Time to Full Height

Ten To Twenty Years