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Rosemary Plants

Q.Rosemary Planting

Anonymous added on November 22, 2010 | Answered

When planting rosemary over or near a septic drainfield, will the root system invade the tiles that are 3 feet deep? Does this plant have a shallow or deep root system? My intent is to plant at least a foot and a half above the ground level.

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Certified GKH Gardening Expert
Answered on November 22, 2010

Three feet deep should be deep enough to avoid damage from the rosemary. They don't have root systems that tend to be invasive as long as they get plenty of water.

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