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Penstemon barbatus 'Cambridge Mixed' | Plant Finder | Fill My Garden

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Plants > Perennials

Penstemon barbatus 'Cambridge Mixed'

Penstemon barbatus 'Cambridge Mixed'

Genus: Penstemon
Family: Plantaginaceae

About this plant

Compact perennial from a seed raised mix, to 30cm tall, with semi-evergreen basal rosettes and deciduous stems with grey-green leaves to 8cm long. From early summer to early autumn bears loose spires of hanging, tubular pink, rose, blue and purple flowers 4cm long

Growing Information

Height

0.1-0.5 Metres

Spread

0.1-0.5 Metres

Hardiness

Foliage

Semi Evergreen

Growing Conditions

Sunlight

Full SunPartial Shade

Soil

ClayLoamSandy

AcidAlkaline

Not Currently Available

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

Neutral

Moisture

Well Drained

Aspect

West FacingEast FacingSouth Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with dry winter mulch. Ideal for container cultivation. See penstemon cultivation

Pruning

Deadhead after flowering to maintain vigour and prolong flowering, then cut back to 15cm in late winter or early spring

Propagation

Propagate by seed in late winter or spring. Flowering 16-20 weeks after sowing

Pests

May be susceptible to slugs, snails, aphids and leaf and bud eelworms

Diseases

May be susceptible to a downy mildew, grey moulds, Powdery mildews and a fungal leaf spot

Garden Uses

Uses

Cottage InformalFlower BordersGround CoverPatio Container

Planting Places

WoodlandIndoorOutdoorConservatorySubmerged AquaticWall Trained

Season of Interest

SpringSummerAutumnWinter

Size & Characteristics

Height

0.1-0.5 Metres

Spread

0.1-0.5 Metres

Habit

Clump Forming

Time to Full Height

Two To Five Years