I prepared the are in advance as described in the on-line literature. The sedum mats arrived at a nice early time on the panned day which gave me plenty of time to get them laid in daylight. They were on a pallet wrapped in film to keep them fresh. The driver was great and helped me get the pallet right up to where I wqs going to lay them. Some of the mats looked a bit patchy but they once they were in place everything has filled out beautifully. I'd definately recommend, everything happened on time and as it should. The mats look great surrounding my little tree fern forrest.