Do not mow your lawn until it is well-rooted. The initial mow should be a light topping - the roots will still be establishing. Set the mower high and aim to to cut no more than 25% off per mow - you can gradually reduce to the desired height over a period of time. Domestic lawns should not be cut below 25mm (1 inch) in the summer. In periods of drought it is recommended that you leave the lawn 35 mm (1.5 inches) and leave the clippings on. The longer grass will protect the soil from drying out and the clippings will also act as a mulch to keep moisture in.
The best mower to buy is a cylinder mower. This has a clean-cutting action unlike the rotary mowers which have a ripping/tearing action. Cylinder mowers are more expensive but are worth the investment. Hover Mowers are good for banks but are not height-adjustable.
Whatever mower you decide to use it is recommended that you have the blades sharpened at the beginning of the season. A lawn cut with a blunt blade can easily be identified by the brown tips on the turf. On close inspection of a blade you will see a jagged cut, which can ruin the appearance of a lawn and could lead to a possibility of disease affecting the lawn.
You should use a box to collect your clippings (except in drought conditions). There are some mowers which will recycle the clippings straight back into the lawn. The clippings are chopped very finely and rot down thus re-feed the lawn.
It is recommended that you scarify your lawn annually. This can be done in early spring or autumn. Any thatch will be removed and it will encourage growth.
When your lawn is well-established, apply fertiliser to your lawn every six to eight weeks during the growing season with a lawn fertiliser.