Unmown in a sentence as an adjective

An unmown, unmanicured lawn, will have a much larger variety of weeds, plants, flowers, etc. I bet that, after some time, the density of ecologicially-good stuff that sprouts up will be much greater than what you'd get in a manually maintained mulch patch.

Unmown definitions

adjective

(used of grass or vegetation) not cut down with a hand implement or machine; "uncut grass"; "an unmown lawn"

See also: uncut