How to Take Care of Your Terrarium During Hot Summer Months

Terrariums are beautiful, low-maintenance mini gardens—but summer heat can be challenging if not handled properly. With the right care, your terrarium can stay healthy and fresh even during the hottest days. Here’s how to protect your terrarium in summer.

1. Keep It Away from Direct Sunlight

Terrariums should never be placed in direct sunlight, especially during summer. The glass can trap heat and act like a magnifying lens, which may burn the plants. Choose a bright spot with indirect light near a window instead.

2. Monitor Temperature Carefully

Terrariums thrive best in temperatures between 18°C and 25°C (65°F–77°F). Keep them away from heat sources such as windowsills, balconies, ovens, and electronic devices. In extreme heat, a well-ventilated room or air-conditioned space is ideal.

3. Adjust Watering Habits

In summer, overwatering is more harmful than underwatering.

• Closed terrariums need very little water—if you see condensation all day, leave the lid open for a few hours.
• Open terrariums may need light watering, but only when the soil feels dry.
  Always avoid waterlogging the soil.

4. Improve Air Circulation

Hot weather can encourage mold and fungus. Open closed terrariums once or twice a week to let fresh air circulate. Good airflow keeps plants healthy and prevents bad odors.

5. Trim Regularly

Summer promotes fast growth. Trim overgrown plants to prevent overcrowding and allow airflow inside the terrarium. Remove any yellow or dead leaves immediately.

6. Watch for Signs of Stress

• Heat stress can show up as:
• Yellow or wilting leaves
• Mushy stems
• Excessive condensation
  If you notice these signs, move the terrarium to a cooler spot and reduce watering.

7. Avoid Fertilizers in Summer

Terrariums don’t need fertilizers, especially during hot months. Fertilizers can cause rapid, weak growth and damage delicate plants.

8. Choose Summer-Friendly Plants

If you’re creating a new terrarium, select heat-tolerant plants like:

• Fittonia
• Ferns
• Moss (for shaded areas)
• Peperomia (for open terrariums)

Final Thoughts

A terrarium is a living ecosystem that responds to its environment. With a little extra attention during summer, your mini garden can stay green, fresh, and beautiful all season long.

A cool spot, gentle care, and patience are all your terrarium needs to survive the summer heat. 🌱