Create a composition with plants by selecting ones that vary in form, texture, color, and size. Chose a combination of edge, submerged, and floating plants. Select one plant that will add vertical interest. Line the perimeter with trailing plants that extend the garden outside the box.

If you’re mixing plants with different growing requirements, place them in containers and set them in the box. Otherwise, fill the garden section with potting soil and choose plants with similar light and watering needs.

Any floating plants should be placed on a brick so they sit 2 inches below the water surface. Finally, add ornamental elements such as a glass gazing ball or a wrought-iron piece.

Next: Make a Water Garden: Planting Tips