Bees and other pollinators are more likely to visit gardens that are in bloom all year and have a wide variety of flowers and plants. The findings, which come amid concerns about shrinking bee populations and the potential for food supplies to be undermined, were published after a series of tests involving a range of garden types. Writing in the journal PLOS One, a team of US-based researchers said keeping a garden in bloom non-stop counts for more than what is in the surrounding fields or land, which some botanists have long seen as key to pollinators being active in and visiting a garden in …