Plants > Shrubs

Forsythia × intermedia 'Karl Sax'

Forsythia × intermedia 'Karl Sax'

Genus: Forsythia
Family: Oleaceae

About this plant

An upright shrub with arching branches and oval, partly toothed leaves. Bright yellow flowers are produced on bare stems in early spring

Growing Information

Height

1.5-2.5 Metres

Spread

1.5-2.5 Metres

Hardiness

H5

Foliage

Deciduous

Growing Conditions

Sunlight

Full SunPartial Shade

Soil

ClayChalkLoamSandy

pH

Acid

Not Currently Available

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

Alkaline

Neutral

Moisture

Poorly Drained

Aspect

East FacingWest FacingSouth Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Grow in well-drained but moist soil in sun or partial shade

Pruning

Pruning group 2

Propagation

Propagate by semi-hardwood cuttings

Pests

Flower buds may be eaten by birds

Diseases

Forsythia gall may be a problem

Garden Uses

Uses

Cottage InformalGround Cover

Planting Places

GreenhouseOutdoorWall Trained

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

1.5-2.5 Metres

Spread

1.5-2.5 Metres

Habit

Bushy

Time to Full Height

Ten To Twenty Years