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rose of Sharon [Ultramarine] | Plant Finder | Fill My Garden

Home/Plants/Shrubs

Plants > Shrubs

rose of Sharon [Ultramarine]

Hibiscus syriacus Ultramarine ('Minultra'^PBR)

★ RHS AGMPollinator FriendlyLow Maintenance

Genus: Hibiscus
Family: Malvaceae
Common Names: rose of Sharon 'Minultra'

About this plant

A vigorous upright shrub up to 3m high, with deciduous, three-lobed green leaves, and single deep violet-blue flowers, 8-10cm across, with dark red centres and veins and cream stamens, from midsummer to early autumn; honeybees and bumblebees may visit for pollen

Growing Information

Height

2.5-4 Metres

Spread

1.5-2.5 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full Sun

Soil

Loam

Neutral

Not Currently Available

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

Moisture

Poorly Drained

Aspect

West FacingEast Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in neutral, humus-rich, moist but well-drained soil in full sun, in a warm position such as a south-facing or west-facing wall to encourage flowering, and protect roots in winter with an organic mulch

Pruning

Pruning group 1 (little or no pruning of trees and shrubs)

Propagation

Propagate by softwood cuttings in late spring, by semi-ripe cuttings in summer, or by layering in spring or autumn; propagation for resale is prohibited without a licence

Pests

May be affected by aphids, scale insects, mealybugs, and whiteflies

Diseases

May be affected by powdery mildews

Garden Uses

Uses

Cottage InformalGround Cover

Planting Places

OutdoorWall Trained

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

2.5-4 Metres

Spread

1.5-2.5 Metres

Habit

Bushy

Time to Full Height

Ten To Twenty Years