herbicide ithat will not kill periwinkle

What herbicide is available that will not kill periwinkle? I want to establish periwinkle as a ground cover but weeds and grasses overwhelm the periwinkle.

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1 Comment To "herbicide ithat will not kill periwinkle"

#1 Comment By shelley On 03/23/2015 @ 3:26 pm

You pretty much have two choices which are to pull the weeds by hand or carefully paint, with a small artist paintbrush, the foliage of the weeds with a herbicide such as glyphosate, being careful not to touch the periwinkle. You should also put a few inches of mulch around your periwinkle to suppress unwanted weeds.

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