Hillsides, banks and sloping areas can be dangerous to mow and troublesome to look after. Heavy rain causes erosion washouts and often the only remedy is to build expensive walls or retaining structures.
Etera Sedum Tiles® are wonderful alternative. They are colorful, easy to plant (and look after), they are virtually evergreen, and are a perfect way to deal with these difficult areas.
Here's a video that explains how easy they are to install and some ideas on where (and how) you can use them around your home.