plants for a sloping bank

Hi GerryI have a sloping bank at the back of my house with a wet corner at one end. Can you recomend plants that are easy to maintain. I will be mulching between the plants. Are there are pictures of landscapped slopes that are mature. Sometimes it nice to see what the effect will look like in a few yearsWhat would you think of dogwood (red and yellow). Is this a hard plant to maintain.The effect of this plant in winter is nice.Mary