Making a terrarium, a self-sustainable ecosystem with a living, growing plant inside a sealed bottle, is a pretty easy project and the plant growing inside can survive for decades without any watering or other care.  Here’s how you can build a terrarium on your own. How to make a terrarium, vivarium, or garden in a bottle First, find a suitable sealed glass bottle or jar. A bottle with a wide mouth will be much easier to work with. Make sure the bottle has a lid or cork which can be sealed tightly. Fill the bottom of the bottle with pebbles. You need at least enough pebbles to cover the bottom of the bottle but can add more if the bottle is taller. Try to fill…
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