Ornamental Grasses
Q.

Ornamental Grasses

Zone St. Louis MO | Anonymous added on August 15, 2018 | Answered

This is our first time to plant some grasses. A silly question but here goes; regarding the base of the grass in ground, how does it extend or expand at ground as it grows up and out. We are not sure how much space it will expand as we are thinking of putting in rock in the area where grasses will be. Is this feasible or should we not put rock in the area where we have the grasses. Thanks.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on August 17, 2018

The root system in clumping and goes approx 12 to 18 inches deep.
Most grasses spread out, though they generally stay in a clump.

Refer to the specific grass your planting and check the size at maturity. This information should be on the tag or you can search this easily, right on our web site!

Grasses are perfect for rock gardens! I would give 12 inches from a large rock formation.

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