Plastic lawns may appear to be the perfect solution to the inconsistencies of nature, providing the vision of a green garden without all the effort of cutting the grass or tending to brown patches. What owners may not realise is that they will likely end up regularly hoovering their garden, as nature creeps in.A council has had to warn people it will not remove healthy trees to stop leaves, blossom and catkins being deposited on the increasing number of artificial lawns installed by its resident