The open-or-closed decision does most of the work in terrarium keeping, and it happens before any plant arrives. Open vessels — the bowls, the hanging globes — move air, which is what succulents and air plants require to avoid rot. Closed jars trap humidity, which is what mosses and small tropicals prefer. Choose the environment first and the plant will confirm the choice; choose the plant first and the glass will eventually deliver the verdict. Everything in this collection states its airflow plainly, because a beautiful terrarium that suffocates its tenant is just an attractive coffin.
Care under glass is mostly restraint. Water sparingly — the glass slows evaporation and shows you the moisture level, which is a diagnostic advantage no opaque pot offers. Air plants want a light mist and a vessel that breathes; how to care for air plants reduces almost entirely to airflow and neglect in the correct ratio. Chive designs the range in Toronto, and the glass has been road-tested by people who unpack boxes for a living.
