21.   Kathy Tracey, the owner of Avant Gardens in North Dartmouth, Mass. works on a container garden.

22.   Like all container gardens, window boxes can be planted from scratch each spring and fall or, like a wardrobe, updated with a few changes.

23.   Nelson recommends a half day to a full day of sun for most container water gardens.

24.   Plant a container garden.

25.   Place a few flat stones in or near the flower beds or container gardens where butterflies can bask in the sun.

26.   Soil, water and food Local gardening experts agree the most important factor of how well a container garden thrives is the soil the plants live in.

27.   Submersible pumps can also add pleasing movement and sound to ponds and to the simplest container gardens.