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penstemon 'Sour Grapes' | Plant Finder | Fill My Garden

Home/Plants/Perennials

Plants > Perennials

penstemon 'Sour Grapes'

Penstemon 'Sour Grapes' M. Fish

★ RHS AGMPollinator Friendly

Genus: Penstemon
Family: Plantaginaceae

About this plant

'Sour Grapes' is an erect perennial to 60cm in height, with lance-shaped leaves and dense panicles of tubular, two-lipped flowers blending purple and blue shades, whitish within the throat

Growing Information

Height

0.5-1 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

East FacingWest FacingSouth Facing

Exposure

ShelteredExposed

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

Pruning

Deadhead after flowering to maintain vigour. Then cut back to base in early spring

Propagation

Propagate by softwood cuttings in early summer or semi-hardwood cuttings in midsummer. Propagate by division in spring

Pests

May be attacked by slugs, snails, glasshouse red spider mite, and leaf and bud eelworms

Diseases

Generally disease free

Garden Uses

Uses

Ground Cover

Planting Places

Outdoor

Season of Interest

SpringSummerAutumnWinter

Size & Characteristics

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Habit

Clump Forming

Time to Full Height

Five To Ten Years