Monday, March 19, 2012

Garden Elements - Preen (pre-emergent herbicide)

Preen is a pre-emergent herbicide that stops all weed seeds from germinating.  It will not kill any existing plants (including weeds that have already sprung up).  So it is safe to use around roses, shrubs, perennials and trees.  Preen should not be used around fruit trees or vegetable gardens, since the herbicide can slowly work its way into the plant.  Preen is a good long term method for controlling weeds. It is available at Costco in the month of March as well as nurseries and home improvement store all year.
Photo by Doug Kalal

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