Learn to make your own compost using waste from the home and garden
Plant plants that will attract wildlife - plants with flowers and berries. Try to use native plants
Leave an area to grow a bit wilder for insects and birds. Butterflies like nettles to lay their eggs
Put up nest boxes and have an area of water - a pond or even just a birdbath. Construct a log pile for hedgehogs and insects. By encouraging this wildlife into your garden you will have natural predators to control such pests as slugs, snails and aphids.
Avoid the use of chemicals in the garden. It can kill wildlife
Think about growing your own fruit and vegetables
Invest in a water butt and use this water for the garden - avoid the use of sprinklers.
To reduce water loss from soil mulch your garden well in the spring
Avoid the use of peat in your garden - there are lots of peat alternatives.
Recycle your plant pots
Make sure that all timber that you use in your garden (including furniture) comes from sustaibly managed forests