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Old July 19, 2009   #1
habitat_gardener
Tomatovillian™
 
Join Date: Apr 2008
Location: California Central Valley
Posts: 2,539
Default how deep will mint roots go?

I have some cinderblocks I'd like to make into mint planters, stacked 2 high. Are the roots likely to go deeper than a foot, and find their way to the rest of the garden? I have chocolate mint, moroccan mint, and a taller version of spearmint.
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