It is noted for its dark purple-red flowers which bloom on inflorescences that are longer (to 12? long) and narrower than those found on the species and most cultivars. Flowers bloom late May to early June (later than the bloom on species shrubs), thus helping extend the length of the lilac bloom season.Growing DetailsCommon Name: 'Ludwig Spaeth'Genus: SyringaSpecies: vulgarisSkill Level: BeginnerExposure: Full sunHardiness: HardySoil type: Well-drained/light, Clay/heavy, Chalky/alkalineHeight: 500cmSpread: 450cmFlowering period: May to JuneDescriptionThis bushy deciduous shrub is best known for its heart shaped leaves and compact trusses of fragrant flowers. Flowers in late spring to early summer.