Even if you are new to gardening you can easily create a natural sanctuary on a balcony, along rooftop or beside a busy city street with a container garden. You can fill window boxes with many types of small perennials, lovely shrub roses or have colorful pots of annuals on your patio to welcome your visitors. This is such a simple way to create a garden either by arranging your pots in a group for a lovely mass effect or placing a single container to highlight a small space. You can easily vary the color scheme as the plants finish flowering by replacing with another in your container. You may want to harmonize the color or have contrasting colors but either way make sure that you have a variety of plant heights. You can either use flowers that have a long flowering season or regularly replace the plants and flowers as they finish blooming.