Once you understand that all plants have a form, try arranging some in front of your house (see post prior to this one).
Take a photo, place tracing paper on top, then start creating a nice composition of plants. You don't need to know specific plant materials at this point. Just arrange the forms in a pleasing way...and don't forget to layer your plants. Two to three rows (one in front of the other) is much better than one! Don't stop at one option. Try several until you find the perfect solution for you and your house.