Mowing practices, having a schedule for mowing your lawn encourages your grass to be healthy and green, you want Keith Isham landscaping LLC to mow your grass more often during its growing season with the average being about once per week depending on the type of grass. Cool season grass growing season is during spring and fall. Even if you’re performing weekly mowing, if you’re cutting the grass too short, it could still turn yellow from stress, when you mow too short, you also invite the weeds into your lawn. Opportunistic weeds are much more likely to invade weakened lawns,than dense thrive ones.