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cascade penstemon | Plant Finder | Fill My Garden

Home/Plants/Perennials

Plants > Perennials

cascade penstemon

Penstemon serrulatus

Pollinator Friendly

Genus: Penstemon
Family: Plantaginaceae
Common Names: coast penstemon, serrulate beardtongue, serrulate penstemon

About this plant

P. serrulatus is a semi-evergreen subshrub to 50cm, with glossy, oval to lance-shaped, dark green leaves. Broad, dense, one-sided clusters of narrowly bell-shaped, pinkish-purple flowers are produced in late summer

Growing Information

Height

0.1-0.5 Metres

Spread

0.1-0.5 Metres

Hardiness

Foliage

Semi Evergreen

Growing Conditions

Sunlight

Full Sun

Soil

ClayLoamSandy

AcidAlkalineNeutral

Not Currently Available

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

Moisture

Well Drained

Aspect

East FacingWest Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Grow in very gritty, sharply-drained soil in full sun

Pruning

Deadhead after flowering

Propagation

Take softwood cuttings in early summer or semi-ripe cuttings in midsummer. Divide in spring or propagate by seed in late winter or spring

Pests

Slugs and snails, aphids and leaf and bud eelworm may be troublesome

Diseases

May be affected by grey mould, powdery mildews and fungal leaf spot

Garden Uses

Uses

Ground Cover

Planting Places

Outdoor

Season of Interest

SpringSummerAutumnWinter

Size & Characteristics

Height

0.1-0.5 Metres

Spread

0.1-0.5 Metres

Habit

Bushy

Time to Full Height

Five To Ten Years