Lilac Pruning - Knowledgebase Question

Glen Cove, Ne
Question by haseface
June 2, 2010
My backyard lilac is large and leggy. This was the first year that it gave a plethora of blooms, so I am hesitant to cut it back too much. Please advise how and how much to prune. Thank you,

Answer from NGA
June 2, 2010


Lilacs bloom on summer's growth so cutting yours back will encourage new growth and new flowers next spring. Leggy plants can be renewed. Prune yours back by one third. This will force growth at the bottom of the plant as well as new growth at the top and all around each side. The growth that emerges this summer will develop flower buds which will open next spring. Enjoy your lilac!

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