Lilac roots - Knowledgebase Question

Helena, MT
Question by paspinwa
July 7, 2006
I have a spot in my front yard in which I'd like to plant a lilac bush.
How deep do lilac roots go since there is a sewer line from my house to the street approximately six to seven feet under ground level. Will the lilac roots interfere with that line? Thanks.


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Answer from NGA
July 7, 2006

0

Roots from a lilac bush will generally remain in the top 18-24" of soil but they may spread out a bit (it's a natural tendancy for these plants to colonize an area). I wouldn't be at all concerned that lilac roots might invade a sewer line that is 6-7 feet deep.

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