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ornamental grasses

Posted by sgrig none (My Page) on
Sat, May 19, 12 at 6:47

I have various types of ornamental grasses that are surrounding a house that I bought and are very mature and VERY OUT OF HAND. I do love them, but I am continuously cutting them back. Is there a way to "stunt" there growth? So that they may stay 3-4 feet instead of 8'. I live in Pennsylvania and they are all planted in full sun. Any advice will be GREATLY APPRECIATED as my knowledge is extremely limited.


Follow-Up Postings:

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RE: ornamental grasses

You can divide them or root-prune them. The techniques and timing vary somewhat, based upon the kind of grass each one it, so the first thing to do is ID them. Then closely examine the crown of each one. If larger warm-season grasses are starting to 'donut' (die off in the center) you'll make divisions using only the outer perimeter of the crown.

Cutting them back is seldom desired, especially if they are large warm-season grasses. It leaves the ends of the foliage squared off and usually browned, and just doesn't look right.


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RE: ornamental grasses

Ultimately, the better solution would probably just be to replace with more compact varieties. Even in the larger grass species like Miscanthus there are shorter and taller varieties.


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RE: ornamental grasses

Yes. If they're 8 feet tall, they will always be 8 feet tall, no matter how much you divide the clump.


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RE: ornamental grasses

I've started using a dividing technique that makes the process less daunting. I think of the clump as a big pie and cut it up into pie pieces using a recipracting saw, then dig out each 'pie piece' by first digging from the outside of the 'pie'. So quick. So easy. I use an old blade I don't really care much about just in case I run into any stones. Try it!


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RE: ornamental grasses

Replace them with shorter versions of similar grasses.

Dividing them won't change their height.


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RE: ornamental grasses

If you take a division from the perimeter of an 8' Miscanthus, it will take 2-3 years for the plant to reach mature height again. It's like starting over with a young plant.


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RE: ornamental grasses

True, but doesn't reduce mature height.


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RE: ornamental grasses

Make the hole deeper, give them a sunken living room.


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