Liriope

Just a quick note about  Liriope.  It is a decorative grass that blooms with either a purple or yellow and white spike of flowers.  Grass is actually a misnomer as it is a part of the lily family.  There are two types of Liriope, spicata and muscari.  Liriope spicata is a rapidly advancing ground cover and will spread very quickly.  Care must be used in planting this type of Liriope to ensure that it has room to run and that your garden will not become overwhelmed by its presence.  The other type, Liriope Muscari , grows in clumps.  It does spread but not anywhere near as rapidly and it does not send off runners as the Spicata variety does.  Both varieties enjoy shady, well-worked soil, but will grow almost anywhere.  It is a very effective groundcover for steep banks.  Once established it is very difficult for weeds to come through the thick tuberous root mass.  An added bonus is that it doesn't require mowing.  Liriope will grow 10-20 inches tall and likes sun to partial shade.  Liriope can be transplanted almost anytime of year, however, it is best to avoid the hottest and coldest times of year.   Liriope requires very little care or effort to become a very beautiful, effective ground cover and weed block .