Terrariums have become a popular DIY project, and you’ve likely seen tutorials everywhere from lifestyle magazines to home blogs. They look impressive, but a traditional terrarium can require several layers of materials and specific steps. If you want a quick, low-cost version that still looks charming and keeps a plant happy, this simplified glass terrarium is a great option. We’ve had ours going strong for over a month, so here’s a straightforward way to create a tiny indoor greenhouse without a pile of supplies.
Most tutorials recommend layering pebbles, activated charcoal, moss, and soil to form a balanced terrarium ecosystem. Those steps are useful, but they aren’t always necessary for a simple indoor display. For this quick DIY terrarium, we used only two inexpensive items: a large dinner plate and an inverted glass hurricane vase. The result is a cozy, moist environment that mimics the feel of a full terrarium without the fuss.
To build this easy terrarium, choose a small potted plant that prefers a humid setting—ferns are ideal, as are orchids or even a venus flytrap. We picked a compact “Fluffy Ruffle Fern” from a garden center. Place the pot on the dinner plate so any excess water drains onto the plate instead of your surface. Then, flip the glass hurricane upside down and place it over the plant to form an enclosed, humid microclimate. The glass dome traps moisture and creates a misty atmosphere that helps the plant thrive.
When selecting a plant, make sure it fits comfortably beneath the glass dome. The leaves should not be pressed tightly against the glass; leave enough space for air circulation so the plant doesn’t feel cramped. This setup functions as a passive humidifier for the plant, reducing how often you need to water it. In our experience, watering has become infrequent because condensation recycles moisture inside the glass.
That said, occasional ventilation is important. If the glass becomes overly fogged or if water droplets are constantly forming on the inside, lift the dome for a few minutes to let the air dry out slightly. We typically remove the glass briefly once a week or whenever it looks too damp. This prevents the plant from becoming waterlogged while still maintaining a humid environment most of the time. Regular checks also let you spot any signs of mold, pests, or yellowing leaves early on.
There are many creative ways to build a terrarium if you want to expand beyond this minimalist version. Glass apothecary jars, oversized jugs, or other clear containers can serve as the enclosure for slightly larger or more elaborate arrangements. If you’re aiming for a longer-term planted ecosystem, consider adding drainage layers like pebbles and a thin layer of activated charcoal to help filter water and reduce odors. Those additional materials are useful for preventing stagnant water and maintaining soil health, but they aren’t required for a simple, attractive display.
Whether you prefer a simplified DIY terrarium using a plate and a hurricane glass or a fully layered glass garden with moss and charcoal, both approaches can be rewarding. This simple method is especially well suited to beginners, apartment dwellers, or anyone who wants the look of a terrarium without committing to more complex maintenance. Have fun experimenting with plant types and containers, and enjoy creating a small slice of humidity-loving greenery for your home.
If you’re curious about more detailed terrarium techniques, there are plenty of how-to resources and videos that walk through the full layered method for creating a self-sustaining glass garden.