decorative grasses

lwendt

We have planted several clumps of decorative grasses that reach about 48" when mature. They are easy to grow and look nice, but they continue to expand to where the girth of each outgrows the area intended, such as up to the fence and then overgrowing and hiding the decorative fence. How can we control the growth so we don't have to physically remove the edges each few years. The roots and crowns are very tough and it gets to be a big job.

Canarywood1

You should have done some research before you planted it,a little to late now.

lwendt

Thank you for your kind and informative response.

sdsester

I used to spec collars to go around grasses like bamboo that worked out great and kept them from invading into places I did not want them. You can use concrete or even better PVC drain pipe, cut deep enough to keep the grass roots from running.

Now, you may have to dig the plants out and replant them in the burried collars or sleeves. I suppose you might be able to trim your plants and slip them over the top.

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