DIY Succulent Terrarium October 30, 2018 in The Designer Hack What you’ll need:Succulents & Cacti Potting SoilShovel Decorative rocksLarge vase or glass container Start with making sure your container is clean. Then open your potting soil Fill the bottom of your container with soil to create the foundation of your terrarium. Use our shovel to remove plants from the store bought packaging. Arrange and replant inside the container. Add your decorative rocks for a little accent. We used white for a nice contrast. You can completely cover the top layer of soil witch colorful stones or add just a little. This is the perfect DIY indoor gardening project to do with your kids.