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Fountain grass in Iowa

I know that fountain grass will not survive our winter, but am wondering if I have to dig it up or just cut it off at ground level?

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1 Comment To "Fountain grass in Iowa"

#1 Comment By MichiganDot On 11/14/2017 @ 9:03 pm

Pennisetum is perennial in zones 5-9. I would not rule out surviving in zone 4, particularly if there is snow cover during the coldest days. I suggest you cut it down to 6 inches then use the cut grass as a mulch over the plant crown. It it doesn’t survive, you’ll want to dig it up as it will take several years for it to compost down.

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