Planter Terrariums

Measure the available display area and choose a terrarium that leaves clearance for watering and airflow; smaller geometric glass terrariums suit desks and shelves, while larger cylindrical or boxy ones work for tables or floor displays and allow room for more plants and layers

Select plants that match the terrarium’s humidity and light: succulents and cacti prefer open or low-humidity terrariums with bright light, while tropical ferns, mosses and fittonia thrive in closed, higher-humidity glass containers with indirect light

Use a drainage layer (gravel or activated charcoal) under the soil, avoid overwatering by testing soil moisture before watering, provide adequate airflow occasionally by opening a closed terrarium, and remove dead foliage promptly to reduce decay and mold

Look for clear, tempered or thick glass for durability and visibility, a stable base, a removable lid or vents if you need humidity control, and a wide opening for planting and maintenance; metal frames and silicone seals can add strength but may affect weight

Most glass terrariums are designed for indoor use because they can overheat or be damaged by weather; if using outdoors, place them in shaded, protected areas and choose sturdy materials rated for outdoor exposure

Prices vary by size, material and brand; many options fall under $50 for small to medium units, while larger or specialty terrariums can cost more, with the category averaging around mid-range prices

Essential supplies include a small watering tool or squeeze bottle, long tweezers or tongs for placement and pruning, a small brush for glass cleaning, potting mix appropriate to your plants, and activated charcoal to help control odors and biofilm