Overview

Sorbus admonitor is a bushy, spreading branched trees in the genus Sorbus, part of the Rosaceae family, with deciduous foliage. Sorbus admonitor grows best in full sun and partial shade, and tolerates most soils and acid and neutral pH. Its UK hardiness is rated H5. Suggested uses include city and courtyard gardens, cottage and informal garden, wildlife gardens, low maintenance and flower borders and beds.

About

Sorbus admonitor is a deciduous tree cultivar within the Sorbus genus, known for its bushy, spreading branches. Like others in its genus, it produces clusters of small flowers in spring and summer. It thrives in fertile, well-drained soil with full sun or partial shade, favouring sheltered positions with moist but well-drained clay, loam, or sand soils. Suitable for city and courtyard gardens as well as wildlife and cottage gardens, it is hardy to UK zone H5 and can be propagated by seed, softwood cuttings, or grafting.

About the genus

Sorbus is a genus of over 100 species of trees and shrubs in the rose family, Rosaceae. Species of Sorbus (s.str.) are commonly known as rowan or mountain-ash. The genus used to include species commonly known as whitebeam, chequer tree and service tree that are now classified in other genera.

Wikipedia contributors, "Sorbus", CC BY-SA 4.0Sorbus

Growing conditions

Best soil and position for Sorbus

Sunlight
Full sun, Partial shade
Soil type
Clay, Loam, Sand
Soil pH
Acid, Neutral
Soil moisture
Moist but well-drained
Aspect
East-facing, South-facing, West-facing
Exposure
Sheltered
UK hardiness
H5

Plant details

Sorbus admonitor size, habit and characteristics

Plant type
Trees
Habit
Bushy, Spreading branched
Foliage
Deciduous
Suggested uses
City and courtyard gardens, Cottage and informal garden, Wildlife gardens, Low Maintenance, Flower borders and beds

Care notes

Pruning and caring for Sorbus admonitor

Propagation
Seed, Softwood cuttings, Grafting
Pest resistance
Aphids, Scale insects, Pear blister mite, Red spider mite, Sawfly larvae
Disease resistance
Fireblight, Apple canker, Silver leaf, Honey fungus

Frequently asked questions

Where is the best place to plant Sorbus admonitor?

Sorbus admonitor prefers full sun and partial shade. It suits sheltered positions.

What soil does Sorbus admonitor need?

Sorbus admonitor is adaptable and grows happily in most soil types, including clay, loam and sand. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.

Is Sorbus admonitor hardy in the UK?

Sorbus admonitor has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Sorbus admonitor?

Seed, Softwood cuttings, Grafting.