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Invasive Plants: Phalaris grass problem

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Forum: Invasive PlantsReplies: 1, Views: 38
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Richland, WA
(Zone 7b)

September 12, 2011
4:01 PM

Post #8805634

I have a rock garden along one side of my house, which has various plants in it. It is watered by an inground system. There are 3 patches of variegated phalaris which I like, but it is spreading so much as to be a problem. I took my hedge trimmer and cut it way back thinking I could get in and dig up most of the roots, just leaving a small clump. Not happening! The roots are way too deep. What can be used to kill back the roots? And will I have to wait for the irrigation to be off? Will the other plants be harmed by run off? I appreciate any help.

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Saraland, AL
(Zone 8b)

September 13, 2011
7:41 AM

Post #8806565

Round Up.

The stuff in the spray bottle works well in flower beds.

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