Gardening Garden Design Garden Projects DIY Pond Box: How to Create a Mini Water Garden for Your Home This mini ecosystem brings the pleasure of a water garden to your deck. By Viveka Neveln Viveka Neveln Instagram Viveka Neveln is the Garden Editor at BHG and a degreed horticulturist with broad gardening expertise earned over 3+ decades of practice and study. She has more than 20 years of experience writing and editing for both print and digital media. Learn about BHG's Editorial Process Updated on September 30, 2022 Share Tweet Pin Email Water lilies are a popular choice for ponds. Lack room for a spacious in-ground water feature? Don't despair. You can still enjoy your own aquatic haven by crafting this nifty pond in a box that fits on a small balcony, deck, or patio. And it's easy to build. Once constructed, fill the planter section with a mixture of ferns and grasses and surround with rock. In the water, add floating plants such as duckweed, a potted dwarf cattail, and ornamental items such as a gazing ball. What You'll Need 15 feet of 1×8 cedar boardsHandsaw or circular sawDrillWood screwsScrap woodWater sealantPlastic linerWater plantsPotting soilPea gravel or landscape rocksGazing ball or other ornaments Step 1 Cut two 30-inch boards for the sides and two 15-inch boards for the ends. Step 2 Assemble the outer box frame using wood screws. Measure the interior dimensions and cut boards to fit as a base, then attach using wood screws every 6 inches along the edges of the sides and ends. Step 3 Cut and secure a piece of wood as a divider inside the box. This will divide the planting space from the pond space. We divided our box to one-third planter and two-thirds pond. Step 4 Cut four 1×2-inch pieces of scrap wood. Apply sealant to one side of each piece. When dry, nail a piece, sealant side down, to each corner. Step 5 On the inside of the box, install a plastic liner or use a water sealant that is safe for aquatic life. Read the sealant label carefully or check with an expert. Apply one coat more than recommended on both the pond and planter sides. On the planter side, drill three holes in the bottom for drainage. Step 6 Fill it! Add water, plants, fish, and ornaments to your planter and pond, then sit back and enjoy. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit