Terrariums

Terrariums for indoor plants and miniature gardens

A planted terrarium turns a collection of small plants into a landscape you can enjoy up close. Combine contrasting leaves, delicate fronds and carefully placed wood or stone to create anything from a simple foliage display to a miniature tropical garden. The best starting point is not a particular brand or style, but an enclosure that suits the plants you want to grow.

Choose a size and shape that works for your plants

Think about the finished planting, rather than just the size of the plants when you buy them. Low, wide terrariums lend themselves to moss gardens and spreading foliage, while taller designs offer room for upright growth, climbing stems or planting on raised supports. Allow for the space taken up by the growing medium, any drainage arrangement and decorative materials. Leave room for leaves to develop without crowding the sides, and check that you can comfortably reach the planting for pruning and maintenance.

Match the plants to the growing conditions

For a humid tropical terrarium, consider compact Fittonia, suitable Peperomia and Pilea, small tropical ferns and mosses adapted to the conditions. Choose naturally small or slow-growing varieties, and group plants with similar light, temperature and moisture needs. A young houseplant is not necessarily a miniature plant: check its eventual size before adding it. Cacti and drought-loving succulents need a different approach, with brighter conditions, greater ventilation and a growing medium that can dry appropriately.

Understand ventilation, lighting and watering

Not every terrarium is a sealed ecosystem. Closed designs retain moisture, while open or mesh-ventilated enclosures exchange more air with the room and usually need more frequent watering. Choose the design around your plants rather than assuming every terrarium maintains the same humidity.

Many tropical foliage plants suit bright, indirect light or an appropriate grow light. Avoid strong direct sun that could overheat an enclosed display. Use a growing medium suited to your plants and check its moisture before watering. A layer of stones does not make a container without an outlet freely draining, so excess water still needs careful management.

Build a display that is easy to enjoy

Plan access before you fill the enclosure. Consider how you will trim spreading plants, clean the viewing surfaces and remove fallen leaves without disturbing the whole layout. A restrained planting scheme with room to grow is often more practical than filling every gap on day one. Check each product listing for its access arrangements, ventilation, assembly requirements and included components. Choose any lighting or other equipment separately according to the needs of the finished setup.

Terrarium or paludarium?

A terrarium focuses primarily on land-based planting. For a design that combines a planted land area with a permanent pool or other substantial water section, explore our paludariums instead. Either approach can be enjoyed entirely as a plant display. Keeping animals is optional and requires an enclosure and environment that meet the needs of the particular species.