Warm-season grasses often brown up in the winter, depending on our temperature trend. Cool-season grasses brown up in the summer, often succumbing to fungal diseases such as brown patch. Fescue blends look their best spring and summer. Hot-weather grasses thrive when the temps heat up. All crave fertilizer and water.
Lawns do help oxygenate and cleanse our environment, just like trees and shrubs.
Spaces of grass also accent large, curving beds of ornamental and shade trees, flowers and evergreens. We just need to curb out appetite for gigantic yards.