Irish Moss - Stays green all year, even in the dead of winter! This hardy, long-lasting ground cover spreads quickly in handsome, densely matted clumps with dainty white blooms. Great in rock gardens or hillsides!
Use tulle netting to cover beds - works great/light weight/cheap/has tiny holes. Rain gets in just fine, as does the sun. Can get it at fabric stores or craft stores and buy it on sale. about 50 cents a yard. Look for widths.