Things You'll Need:
- Glass case
- Stones
- Peat moss
- Potting soil
- Seedlings
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Step 1
Obtain a glass case for your rock terrarium. You can purchase a fancy Wardian Case or simply use an old aquarium or large fish bowl as your container. Add water to check the case for leaks, and repair any problems with clear silicone.
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Step 2
Choose your rocks. Select a variety of sizes, shapes and colors, preferably from different regions so that you have a collection of stones that you wouldn't typically find in the same natural setting. Clean the stones with clear water and a new toothbrush. Do not use chemical cleaners that may harm the plants.
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Step 3
Layer the terrarium with 1 inch of small stones. Pea-sized stones work best, but any stones smaller than marbles can work. Aquarium stone also works, but rinse thoroughly it in clear water to remove excess dust and nitrates.
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Step 4
Cover the stone with a 1-inch layer of peat moss, and then a layer of potting soil. You can create hills and valleys if desired, as long as the potting soil is a minimum of 2-inches thick in all areas.
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Step 5
Place your desired rock formation inside the terrarium. Add small plants in strategic areas to highlight the placement of the stones. Choose dwarf plants that will fit within the terrarium at maturity.
