Syringa vulgaris 'Congo' — Bushy

Overview

Syringa vulgaris 'Congo' is a bushy shrubs in the genus Syringa, part of the Oleaceae family, with deciduous foliage. Syringa vulgaris 'Congo' grows best in full sun, and tolerates most soils and alkaline and neutral pH. Its UK hardiness is rated H6. Suggested uses include cottage and informal garden, patio and container plants and city and courtyard gardens.

About

Syringa vulgaris 'Congo' is a bushy deciduous shrub belonging to the genus Syringa, known for its simple leaves and conical clusters of small, highly aromatic tubular flowers that bloom in late spring or early summer. This cultivar thrives in full sun and suits west- or south-facing positions, tolerating both exposed and sheltered sites. It prefers fertile, well-drained soils ranging from chalk to clay, with neutral to alkaline pH, and benefits from moist but well-drained conditions. Hardy to UK zone H6, it is well suited to cottage and informal gardens, patios, containers, and city or courtyard gardens.

Growing conditions

Best soil and position for Syringa

Sunlight: Full sun
Soil type: Chalk, Clay, Loam, Sand
Soil pH: Alkaline, Neutral
Soil moisture: Moist but well-drained, Well-drained
Aspect: West-facing, South-facing
Exposure: Exposed, Sheltered
UK hardiness: H6

Plant details

Syringa vulgaris 'Congo' size, habit and characteristics

Plant type: Shrubs
Habit: Bushy
Foliage: Deciduous
Suggested uses: Cottage and informal garden, Patio and container plants, City and courtyard gardens

Care notes

Pruning and caring for Syringa vulgaris 'Congo'

Propagation: Propagate by softwood cuttings or layering in early summer
Pest resistance: May be susceptible to lilac leaf-mining moth, willow scale and thrips
Disease resistance: May be susceptible to lilac blight, honey fungus, phytophthora, powdery mildews and bacterial canker (Pseudomonas Syringae)

Frequently asked questions

Where is the best place to plant Syringa vulgaris 'Congo'?

Syringa vulgaris 'Congo' prefers full sun. It suits exposed and sheltered positions.

What soil does Syringa vulgaris 'Congo' need?

Syringa vulgaris 'Congo' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It prefers alkaline and neutral soil. Aim for soil that stays moist but well-drained to well-drained.

Is Syringa vulgaris 'Congo' hardy in the UK?

Syringa vulgaris 'Congo' has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.

How do I propagate Syringa vulgaris 'Congo'?

Propagate by softwood cuttings or layering in early summer.

More in the Syringa genus

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