How Much Does a Lilac Tree Grow in a Year?

Updated February 21, 2017

Beautiful flowers and the trademark fragrance of lilac mark spring in many parts of the world. Hardy shrubs growing in USDA zones 3 through 7, they tolerate most soil types and make showy specimen plants.

Factors Affecting Growth

The International Lilac Society lists more than 2,000 cultivars with varying growth rates. Proper siting, soil condition, hours of daylight available, fertilising and watering are necessary for each type to achieve its best growth rate.

Fast Growth Rate

A fast growth rate is 25 inches or more per year, according to the Arbor Day Foundation. Chinese lilacs and hybrid cultivars S. x prestoniae and S. xjosiflexa are listed as fast growers.

Medium Growth Rate

Syringa vulgaris (common lilac) and Syringa reticulata have medium growth rates. According to the Arbor Day Foundation, this equals 13 to 24 inches per year.

Slow Growth Rate

Cultivars with slow growth rates put on 12 inches or less per year, according to the Arbor Day Foundation. Syringa meyeri Palibin (dwarf Korean lilac) and French lilac cultivars are listed as slow growers.

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About the Author

Beth Asher began writing in 1972 for a catalog company. She has written for schools and charities, including Star Workshop Foundation. She was a John Deere representative for nine years, manager of Brown's Blueberries and an advisory member of King County Small Farms Board and the Washington Association of Landscape Professionals. Asher holds a Bachelor of Science in computer networking from City University.