- Commonly known as Japanese tree lilac, grows as a small tree or large shrub with an oval-rounded crown. - Blooms later than most other lilacs with showy, fragrant, creamy white flowers bloom in upright panicles late May to early June. - Flowers give way to clusters of brown capsules that persist into winter. - Attractive reddish-brown peeling bark on younger branches, turning gray with age. - 'Ivory Silk' is a small tree or large shrub with a rounded crown, growing 20-25 feet tall. - Creamy white, fragrant, single flowers are arranged in dense, terminal clusters. - Features attractive dark-green leaves and reddish-brown bark.