Build a Mini Garden: A Fun Terrarium Activity for Kids

Tried every craft and looking for something new? This activity can bring the excitement back: creating a home terrarium with your kids.

A terrarium is a tiny garden inside a glass jar, built with layers of stones, soil, and small plants. It’s a simple, hands-on activity that turns into meaningful quality time. Along the way, children learn patience, responsibility, and care. And when that first little leaf appears, the sense of pride is real.

What You’ll Need

Everything can be found at home or in a nearby garden:

• A clear, large glass jar (a clean pickle jar works perfectly)
• Small stones or gravel for drainage
• Potting soil
• Small, moisture-loving plants such as moss, tiny succulents, or sprouts. You can also use small artificial plants
• Small decorations like colorful stones, shells, or tiny figurines

How to Make It

Start with the Base Layer

Place a layer of small stones at the bottom of the jar, about 2 cm high. This layer helps excess water drain and prevents the roots from rotting.

Add the Soil

Pour in a layer of potting soil, filling about half the jar. Let your kids gently press it down with their hands. The sensory experience is part of the fun.

Plant the Garden

Make small holes in the soil using a finger or spoon and place the plants inside. Choose plants that grow slowly so the garden stays balanced over time.

Design the Landscape

Now comes the creative part. Add decorative stones, create little paths, or place small figurines inside the jar. Let your kids design their own miniature world.

Water Gently

Add a small amount of water using a spray bottle or spoon. The soil should be moist, not muddy.

Watching It Grow

Place the jar in a bright spot, but avoid direct sunlight.

This is a great opportunity to teach kids about the water cycle. In the morning, they may notice condensation on the glass. This is moisture released by the plants, which then returns to the soil like a tiny rain cycle inside the jar.

You can also turn this into a simple weekly ritual. Encourage your kids to check on their garden and notice changes. Did something grow? Did a new leaf appear?

A Small Project with a Big Impact

Beyond being fun, this activity helps children connect with nature in a simple, tangible way. It teaches patience, observation, and care—all through something they created themselves.

A Quick Note

Since this activity involves glass and soil, it should always be done with adult supervision.

Good luck!