Closed cases hold humidity and suit tropical foliage and moss. Open cases suit plants that dislike constant damp air.
If your plants want opposite climates, no amount of styling will save the build — match the vessel to the plant list.
Define the difference
Closed means moisture largely stays inside. Open means the room climate wins. Semi-closed (cloche, vented cabinet) sits between.
Outcome to aim for
A plant list that shares humidity and moisture needs, so you are not fighting the vessel every week.
Decision materials
Your vessel, your light, and an honest sense of how often you will water or vent.
Aftercare differences
Closed: watch condensation. Open: watch dryness. Semi-closed: practise lifting and replacing lids on a rhythm.
Troubleshooting
Tropical plants crisping in an open bowl need a lid or a different plant list — not more fertiliser.
