GARDEN CENTRES ARE A VITAL ASSET OF HORTICULTURE, AND ARE REGULARLY FREQUENTED BY THOUSANDS OF GARDENING ENTHUSIASTS. THEY ALSO PLAY THEIR OWN IMPORTANT ROLE IN THE ECONOMY, ESPECIALLY IN THE UK, WHICH HAS AN ESTIMATED 2000 GARDEN CENTRES. BUT BY THEIR VERY NATURE, THESE BUILDINGS REQUIRE AMPLE AMOUNTS OF LIGHTING - AND THIS USES MORE ENERGY THAN YOU MAY THINK.