Evergreen

Arthur Bedford rhododendron

Rhododendron 'Arthur Bedford'

Rhododendron 'Arthur Bedford' is an evergreen shrub with glossy dark-green leaves and pale lavender-purple flowers marked dark red-purple in late spring. Its upright to spreading form reaches about 5–8 feet tall and wide at maturity; a cultivar register records about 6½ feet of growth in ten years. Give it room in a sheltered border where the spring display can be seen and the foliage provides year-round structure. Sun to partial shade suits it, with acidic, humus-rich soil that stays moist but drains well. In Southwest Washington, protect it from strong wind and frost pockets, and water through dry summer periods.

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At a glance

Mature height
About 5–8 feet
Mature spread
About 5–8 feet
Light
Sun to partial shade
Hardiness
H6 (UK hardiness rating)

The right plant, the right place

Make room for something good.

Allow space for an upright to spreading shrub about 5–8 feet tall and wide. Its evergreen foliage adds structure to a border after the late-spring flowers fade.

Where to plant

Choose a sheltered site in sun to partial shade, away from strong winds and frost pockets. Leave room for the shrub's mature spread.

Through the seasons

Pale lavender-purple flowers with dark red-purple markings appear in late spring. Glossy dark-green leaves remain through the year.

Southwest Washington gardens

Give it a good start.

Rhododendrons grow in Pacific Northwest gardens, though local performance of this cultivar has not been established. Check soil moisture during dry summer spells and water before it dries out.

Soil, drainage & water

Provide acidic, humus-rich soil that stays moist but drains well. Water during dry periods so the root zone does not dry out.

A little care goes a long way

Growing well, season after season.

Mulch to help conserve soil moisture. Prune soon after flowering if shaping is needed.

Know what to look for

Common growing concerns.

Symptoms can have more than one cause. These notes are a starting point for observing your plant and improving its growing conditions.

Phytophthora root rot

Stunted growth, yellowish leaves, wilting or branch dieback; rotted roots and dead leaves that remain attached.

Help your plant thrive

Plant in well-drained soil and avoid introducing infected plants. Remove affected plants and follow good sanitation practices.

Rhododendron lace bug

Pale stippling on upper leaf surfaces and dark, crusty deposits underneath; repeated infestations may yellow leaves.

Help your plant thrive

Check leaf undersides, especially on plants in sunnier positions. A firm water spray under the leaves can reduce insects.

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