Mason jar terrarium
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A closed tropical terrarium layered with pebbles, charcoal, potting soil, moss and small plants in a large jar.
What You’ll Need
- Large clear glass jar (apothecary jar; large mason jar, cookie jar or similar also works)
- Pebbles or small rocks (or aquarium rocks)
- Mesh or landscaping fabric
- Activated charcoal (or horticultural charcoal)
- Tropical potting soil (or indoor potting mix)
- Terrarium plants (for example a pink fittonia and a dwarf maidenhair fern)
- Sphagnum moss
- Optional: larger rocks and driftwood
- Equipment: bowls, garden trowel, gardening tweezers (optional), spray bottle or mister (optional)
Equipment
- mason jars
Directions
- Collect your supplies.
- Spread a layer of pebbles or small rocks on the bottom for drainage; top with mesh or landscaping fabric so the soil does not wash down.
- Spread a layer of activated charcoal over it.
- Fill in with tropical potting soil.
- Set the plants in with sphagnum moss; add larger rocks and driftwood for decoration if you like.
- Put the lid on.
Notes
Closed terrarium: water about every couple of months (more if the lid is opened often). Don’t overwater; pooling water means too much. Bright, indirect light; glass magnifies heat in direct sun. Use plants with similar needs; succulents and cacti in open containers only. Mist until soil is lightly damp, not soggy; a little condensation is normal.