Create a Sunken Container Water Garden for Temperature-Stable Plantings

Instead of placing a container on the soil where it's vulnerable to temperature swings, sink a pot into the ground so it's surrounded by insulating earth. The minipond looks especially attractive at a path's edge or nestled among other plants.

What You Need

• Shovel
• Plastic planter
• Sand or gravel
• Flat stones or flagstones (optional)
• Plants

Zones: 5–10 Time: About 1 day

Plant Options

• Dwarf papyrus
• Water fringe
• Hardy water canna
• Duckweed
• Water snowflake

Step 1: Dig Hole

Using the pot as a guide, dig a hole slightly larger and deeper so the rim sits flush with ground level. Level the bottom; add sand or gravel if needed.

Step 2: Place Pot

Set the container in the hole and backfill with sand, gravel, or excavated soil to secure it. (Use excess soil elsewhere.)

Step 3: Plant

Fill with water, let stand several days, then plant with one water lily, a small lotus, or three to five small potted/floating water plants. Camouflage the rim with flat stones.

Use a horse trough: Almost anything works for a water garden. Sink an old or new metal trough (horse, cattle, or pit) following the same steps. Add rocks to connect visually, camouflage the rim, and install a fountain at one end.