Obviously not as the sole cover of course, but they do fine on the north side have green, flowers and fruit. Plus once you start them on that surface they'll spread and cascade by themselves so you won't need to worry about replacing them for absolutely ages, if ever.
@Sam_w a left field suggestion, strawberries.
Obviously not as the sole cover of course, but they do fine on the north side have green, flowers and fruit. Plus once you start them on that surface they'll spread and cascade by themselves so you won't need to worry about replacing them for absolutely ages, if ever.