Toyota (yes the car company) has developed squares of turf for your roof. Made by Toyota Roof Garden, a division of the automaker, the squares of grass mat (called TM9 turf mats) come in 20×20 inch patches specifically designed to go on a flat roof. Theyâ€™re made of slow growth Korean velvet grass (korai shiba), meaning you only need to cut it once a year, and feature built-in irrigation holes so you donâ€™t need to worry about over watering them. Put a couple of these together and youâ€™ve got a lawn that looks good and provides insulation, which should help cut energy costs. 10 square feet will run $43, which doesnâ€™t seem too steep for a ready to go do it yourself lawn option. Unfortunately these are currently only available in Japan, so cross your fingers that youâ€™ll get to see them at your local gardening store some time in the future.
[Via: Pink Tentacle]