Host John Cretti and guest Harriet McMillan discuss the many benefits of terrariums, and explain that these miniature gardens are ideal for winter gardeners, travelers and negligent gardeners. They also show how to create a basic terrarium from any common glass container, such as an aquarium, fish bowl or lidded candy jar. Finally, they demonstrate how to grow small tropical plants that require high humidity, and discuss the range of plants that work best in terrariums.
Materials
- horticulture charcoal
- soiless mix / squeegee
- tank or fish aquarium
- water pitcher
- sheers
- teaspoon
- Plexiglas (cut to size to cover tank)
Best Types of Containers for Terrariums
- basic fish aquarium
- fish bowl
- enclosed brandy snifter
- glass bowl (curved)
Suggested Terrarium Plants
- a starter palm (may need to be removed if it gets too big)
- any starter houseplant
- needlepoint ivy
- polka dot plant
- pilonia (trailing plant)
- African violet (miniature form)
- Pilea involucrata
- dampened forest sheet moss
Creating a Terrarium
- Begin with a layer of horticultural charcoal, which creates a base for the potting media, facilitates drainage and helps keep the soil "sweet."
- Next, use a basic soil-less medium with ample moisture and coarse gravel to increase the porosity of the soil and further improves drainage.
- When planting, keep in mind that it may be necessary to reduce the root system.
- Enhance the topography of the terrarium with driftwood, rocks, or other natural items.
- Prune plants as needed and remove any that grow too large.
- Water plants well, and pack the soil firmly around the roots.
- Add moss and other ground cover to give the terrarium a finished look.
- Place a lid or cover on top of the container. Remove or crack the lid if the interior becomes too moist.
