You can help the tines penetrate deeper by watering your lawn one to two days prior to areating. Learn how to give your grass a breath of fresh air with these tips on aerating lawns. The most inexpensive zoysia grass way is with a pitchfork or spading fork. Simply punch holes as deep as possible in the turf layer and then rock the fork to enlarge the holes. Repeat and overlap your path as you move through the lawn.