Plants and organics are on garden retail buyers' minds this year, the Garden Center Magazine annual survey revealed. The top three categories, out of 47, that retailers reported increasing orders for were plants: perennials (64 percent), herbs (58 percent) and annuals (56 percent). Organic fertilizers and organic pest and disease controls ranked fifth and sixth. Pots and planters ranked fourth. The survey asked retailers about purchasing trends in 47 product categories, and 245 retailers re...