Check out this Totoro Terrarium I made for my office:Want to make your own? Here’s what you’ll need:
Large glass container, wide openings work best
Activated Charcoal (You will only need this if you are making a closed terrarium. You can get this at a nursery or pet supply store.)
Small rocks or gravel (I used aquarium gravel.)
Several small plants
Potting Soil – all purpose houseplant potting soil is fine.
Decide what type of container you want to use for your terrarium. Do you want to use an open or closed container? If you are using a lid, keep in mind that you will want plants that can tolerate humidity. If you are keeping an open top, you could even plant succulents. I picked my container up at Wal-Mart for around $10. You could also check out your local thrift stores or you could turn to the Internet to find something suitable.
When you are choosing your plants, remember to select plants that have the same needs as far as light, moisture & humidity. Your local nursery can help you pick plants suitable for your project. My local nursery (Great Big Greenhouse) has a nice selection of terrarium plants. They also offer free classes on terrarium making, check their website for a schedule.
Once you have your container, plants and other supplies begin layering your terrarium. If your terrarium will have a lid, start with a layer of activated charcoal on the bottom. It will help keep things fresh. You may want to pour the charcoal onto some paper towels before adding it to your container. It can be dusty straight from the box. Next, add at least a 1” layer of small gravel for drainage. Now you are ready for your potting soil. Make sure your soil level is deep enough to entirely cover the roots of your plants. Plant time! Plant taller plants towards the back and shorter ones toward the front. Try to avoid placing your plants directly against the glass.
Now you are ready to add your decorations – small figurines or toys, rocks, bits of wood. Get creative! I think my next terrarium is going to be Star Wars themed – check out these great examples from Pinterest.
More information on my blog: http://lessonslearnedfromtheinterwebs.com/?p=118