Couch grass
ouch grass or twitch grass (Elymus repens) is an old enemy for many gardeners. Its wiry, underground stems and creeping shoots pop up around garden plants and before long can take over a bed. As a perennial weed thorough killing or eradication of the roots is necessary.

What is couch grass?
Couch grass is a common and invasive garden weed. It is a perennial grass which rapidly spreads by rhizomes (underground stems).

© The Royal Horticultural Society 2011 / RHS Registered Charity № 222879/SC038262
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