In our February issue of Digger, we’ll have an article on the challenges of watering plants at a garden center. One way to reduce expenses is to capture rainfall from the rooftops and store it for when it is needed. They’re doing this at Al’s Garden Centers in Sherwood, Ore. Another retailer that’s big on the practice is Bunnings, a 242-store home improvement chain (similar to Lowe’s or Home Depot) in Australia and New Zealand. The company spent three years and nearly $7 million (American) to install systems at all of its stores, at a cost of about $60,000 per store. These systems generate way more water than they need to irrigate their garden departments.