Syringa vulgaris Syringa vulgaris Common name(s): Common Lilac Blooming time: spring Blooming colors: purple, pink, red, white Height: 2 to 6 m Origin: Asia, Europe Hardiness zone (USDA): Z4 – up to -28 °C Family: Oleaceae Related plants:Forsythia × intermedia Jasminum nudiflorum Ligustrum vulgare