What Is a Terrarium?

A terrarium is a small glass container that houses plants and soil, creating a miniature indoor garden. Closed terrariums recycle moisture like a tiny greenhouse, while open terrariums suit succulents and cacti. They are perfect for Bangladeshi apartments where outdoor space is limited.

Types of Terrariums

1. Closed Terrariums

Closed terrariums have a lid and keep humidity high. They are best for moss, ferns and small tropical plants that love moisture.

2. Open Terrariums

Open terrariums have no lid and dry out faster. They are ideal for succulents, cacti and air plants that need airflow.

Materials You Need

  • Glass container with or without a lid
  • Small stones or pebbles for drainage
  • Activated charcoal to prevent odours and mould
  • Potting soil suitable for your chosen plants
  • Moss, ferns, succulents or small indoor plants
  • Decorative stones, sand or mini figurines

Step-by-Step Terrarium Setup

  1. Clean the glass container thoroughly.
  2. Add a 2-3 cm layer of pebbles for drainage.
  3. Sprinkle a thin layer of activated charcoal.
  4. Add potting soil, shaping small hills for interest.
  5. Plant the largest plant first, then add smaller ones around it.
  6. Mist lightly and add decorative top dressing.
  7. Place in bright, indirect light.

Terrarium Plant Recommendations

For closed terrariums, use baby tears, moss, ferns and fittonias. For open terrariums, use echeveria, haworthia, jade plants and small cacti. Always match plants with the same light and water needs.

Care and Maintenance

Closed terrariums usually only need watering every few weeks because moisture recycles. If the glass is constantly foggy, open the lid for a few hours. Open terrariums with succulents need watering every 7-10 days. Remove dead leaves and trim plants to prevent overcrowding.

Common Mistakes to Avoid

  • Overwatering, which causes root rot and mould.
  • Placing terrariums in direct afternoon sun.
  • Mixing moisture-loving and drought-tolerant plants.
  • Using containers without drainage layers.

Conclusion

Terrariums are a beautiful, low-maintenance way to enjoy indoor greenery. With the right container, plants and care, your miniature garden can thrive for years on a desk, shelf or windowsill.

Shop terrariums and accessories at Banomala, or contact us for ready-made terrarium options.

Frequently Asked Questions

How often should I water a closed terrarium?

Closed terrariums rarely need watering. If the soil looks dry or plants wilt, mist lightly every 2-4 weeks.

Can I keep a terrarium in direct sunlight?

No. Direct sunlight can overheat the glass and burn plants. Bright, indirect light is best.

Do terrariums need air holes?

Closed terrariums do not need air holes. Open them occasionally if too much condensation builds up.