A harrow apparatus is provided. The harrow apparatus can have a main frame mounted on ground wheels for travel along a ground surface in a travel direction, a hitch assembly attached to a front end of the main frame and operative to connect to a tow vehicle, and a harrow section connected rearwardly of the main frame, the harrow section having a plurality of tines extending downwards to engage with the ground surface. The plurality of tines can include a first set of tines having a first diameter, and a second set of tines having a second diameter. The first diameter of the first set of tines is larger than the second diameter of the second set of tines.