Trees and shrubs

Common Lilac 'Congo'

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Hardiness Zone 3

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Common Lilac 'Congo'

FamilyOleaceae

Syringa vulgaris ‘Congo’ is a common lilac remarkable for its intense purplish-red blooms and pronounced fragrance. This deciduous shrub develops an upright, structured habit, taller than wide, ideal for flowering hedges, borders, and as a specimen plant. In spring, large, single panicles with dark red buds open into deep reddish-purple flowers, creating a powerful visual impact in the garden. Its medium green, heart-shaped foliage provides good summer density and highlights the contrasting bloom. Very hardy and long-lasting, Syringa vulgaris ‘Congo’ prefers well-drained soil and a sunny exposure to ensure abundant and sustained flowering. It is an excellent choice for bringing fragrance, rich color, and character to northern landscape designs.

Syringa vulgaris 'Congo'

Soil and care

The rightconditions.

Fertilization Slow-release fertilizer 14-7-14 or 4-2-8. Fertilize monthly or as directed on the bag. Add Myke at planting.

Bloom and dimensions

The completeprofile.

Bloom periodSpring
Flower colorPurple
Foliage colorGreen
Foliage typeObsolete
FruitingFew brown capsules.
Maximum height3 to 4 m (10 to 13 feet)
Maximum width2.5 m (8 feet)
Growth rateaverage
Hardiness zoneZone 3
Minimum temperature'-40°C