Composting has a key role to play if the UK is to meet its targets under the Landfill Directive and also on an environmental scale the composting process helps avoid landfilling of green waste which through methane generation contributes to global warming.

Composting is a well established and simple method for processing organic waste. It requires aerobic conditions (presence of oxygen) and temperatures of 55-60 degrees centigrade which will lead to the breakdown of organic compounds into a useable compost. A number of local authorities encourage composting at household level through education or the provision of free or subsidized composting bins. And, if you have a small garden or live in a flat you may prefer to take compostable materials to a centralised composting site run by the council or alternatively the authority may take green waste away or have recycling centres where it be taken.

All that needs to be done is to place the materials into a container, often made from recycled plastic and having a lid and side access. Occasional turning and adding of new green and other appropriate waste will help speed the composting process.

What can be composted

• Lawn clippings
• Shredded stalks and hedge clippings
• Cut flowers
• Vegetable and fruit scraps
• Tea bags, leaves and coffee grounds
• Egg shells

What can't be composted

• Diseased plants
• Plastics, glass and other non-organic materials
• Cooked food including meat and fish
• Weeds are best avoided
• Coloured glossy paper
• Pet droppings

Your questions answered

• How long does it take to make compost?

Composting can take weeks or months, depending on how much air and moisture the compost receives. By turning the compost regularly to incorporate air you should make compost in 3-6 months. In winter it will take longer because cold weather slows the process down.

• Why does compost turn wet and slimy?

Usually because you have put in too much soft material, grass clippings and vegetable peelings etc. By adding chopped up twigs and wood chips and some shredded or crumpled newspaper you will give the compost a better texture.