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Here are my step by step instructions on how to make a plant terrarium with no drainage. Plant terrariums with no drainage require little maintenance - you only need to water every 2 to 3 weeks, or when needed.
I had a neat terrarium in my room when I was a kid and I really wanted to make one with my son.
This simple but cute summer project can be made in minutes, but you can enjoy it for a long time! It's good for kids or adults.