Lawn mowers keep grass trimmed to a healthy level, encourage robust growth and help minimize lawn pests. There are types to meet all needs, including gas-powered riding mowers with attached grass-catcher bags, gas or electric-powered push mowers available with or without bags, and the environmentally friendly reel push mower. Some lawn mower models have dethatching capabilities that remove the excess thatch, or tangled dead roots and grass fibers, that can choke lawns and inhibit healthy growth.
Lawn trimmers, also called weed whackers, are useful for trimming edge grass that mowers cannot reach. They are especially useful along fences, walls, house foundations and along garden edges or rock walls. Trimmers are available as gas, electric or cordless models, and are equipped with spools of string that gradually unwind to cut grass and weeds off at ground level. Some models also feature a small blade designed to trim thicker growth along the edges of unmowed areas.
Grass clippers are used to trim hard-to-get-at areas that mowers can't access, and unlike trimmers, are useful around flower beds or for spot clipping without creating too much debris or mess. Models are varied, from the hand-operated type, that uses a scissor-like motion, to the electric or cordless rechargeable type with deeply-toothed blades that move in a reciprocating fashion to slice through the grass. Hand-operated shears are also available as long-handled styles on small wheels that eliminate bending over during use.
Rakes are available in two basic types: those with thick metal tines designed for raking the soil level when putting down new grass seed, and grass rakes used to rake clippings, leaves and other debris. Grass rakes are made of metal, plastic or bamboo, and their tines are fanned out to gather as much material as possible during use. Grass rakes are also available as expandable units or in smaller sizes that get into the tight spots between shrubs, flowers and fences.