Septic System Plants - Knowledgebase Question

Boise, ID
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Question by arc5
August 11, 2006
How close can I plant a 'Hakuro Nishiki' dappled willow to a septic system? Would a Coral Bark maple be a better choice. I am concerned about roots growing into the septic area. Thanks, Ann

Answer from NGA
August 11, 2006
Of the two, Coral Bark maple has better-behaved root systems than dappled willow. In general terms, root systems are typically concentrated in the top 18-24" of soil and will spread out nearly twice as far as the canopy or dripline of a tree or shrub. With that in mind, you can determine how far away to plant your new shrubs.

Best wishes with your landscape!

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