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Plant Atlas
Mature common lilac flowering beside a path in a spring garden.

Shrub

Common lilac

Syringa vulgaris

A large, long-lived deciduous shrub with strongly fragrant purple spring flowers. It performs best in sun and needs room for a broad crown and possible suckering at the base.

Size
4–8 m high · 4–8 m wideVaries by cultivar
Light
Full sun
Water
Moderate
Winter
Very hardy
Seasonal form
Deciduous
Maintenance
Low

Before planting

  • Allow for a broad mature shrub rather than judging the space needed from a young plant.
  • New shoots may arise from the base and form a wider thicket if they are not removed.

Why choose it

  • Produces strongly fragrant flower panicles in spring.
  • Forms a robust, long-lived screen or flowering backdrop.

Care

  • Grow in full sun for the strongest flowering.
  • Prune only when needed and do it soon after flowering.
  • Avoid hard annual clipping, which removes flowering wood and spoils the natural habit.