Hedge trimmers should have reciprocating blades - two blades that move at the same time. Those which have just one vibrate uncomfortably. Machines can also be divided into those that have teeth on both sides of the blades and those with teeth along just one edge - the latter is not as versatile.
Generally the closer the teeth the cleaner the finish. Close teeth are fine for maintaining Lawson cypress hedges, but wider gapped teeth are more suitable if you want to prune woody stems and branches.
Power hedge trimmers are the source of many accidents so safety is vital. Machines fitted with lock-off switches have a two-step starting procedure which prevents the machine being activated accidentally. Make sure the machine will also turn itself off when you relieve pressure on the on-button.
Nylon-line trimmers are popular with gardeners, not least because they perform several tasks. The machines are ideal for cutting grass where lawnmowers can't reach, such as the corners and edges of lawns. The machine will also edge a lawn, though not as neatly as some edging tools.
Some trimmers are equipped with devices to feed the nylon line. As the line may snap during use, a feeding mechanism avoids interruption. Chainsaws of professional specification are best left to the professionals. Smaller, electric models are useful for removing small to medium-sized branches and help fell small-stemmed or young trees.
Choose the machine according to the guidelines for safety described above for hedge trimmers.
Power weeders are designed to eliminate the chore of bending and pulling weeds. The prongs dig and cut out small weeds with shallow roots easily but are not so effective for deep-rooting weeds.
Power shredders help recycle your garden refuse - woody tree and shrub prunings, for instance - by reducing it into shredded matter ready for the compost heap. Electric and petrol models are expensive but do help provide high grade compost.
Pole trimmers are one of the easiest means of trimming lawn edges and they give a very clean cut. They can be fitted with an extension rod to prevent you having to stoop. A straight pruning saw is ideal for cutting branches 2.5-13cm (1-5in) thick. The teeth cut on the backward stroke -the strongest stroke when you are working at shoulder height. This saw has an interchangeable long or short handle.
Being battery powered, they require regular recharging - you could run out of power in the middle of a task. They are not suitable for lawns of more than 30 sq m/yd.
