Lilac 'Katherine Havemeyer'Syringa vulgaris Katherine Havemeyer Lilac Lilac Katherine Havemeyer is a medium sized deciduous tree or shrub. Large, very dense flower spikes are produced in mid spring, with double lavender purple flowers that are strongly fragrant. This shrub makes an attractive addition to any garden. Green heart shaped leaves. Prune after flowering. Annual mulching and fertiliser in autumn recommended, with summer watering required. Plant in full sun. This lilac
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