Bristol · Gloucester Road · since 2019

Plants that look after themselves for nine months.

A closed terrarium is a small water cycle. Moisture lifts out of the moss, condenses on the inside of the glass, and runs back down. Nothing escapes and nothing needs topping up.

Kits from £16 Vessels from £42 4.8 from 412 orders Free UK delivery over £60
Hand-blown vessel · ground neck · cork mat
Bell jar cloche, 24 cm, with three mosses and a springtail colony £95 planted
One

The vessel does the work

Hand-blown glass with a ground neck, so the lid seats without a gasket. A rubber gasket perishes in about two years and the jar dries out quietly. Ground glass lasts as long as the glass does.

Two

The substrate is layered, not mixed

Charcoal, then sphagnum, then mineral soil, then moss. Mixed together they rot. Layered, the charcoal keeps the water clean and the whole thing carries on by itself.

Three

Springtails, not chemicals

Every vessel leaves with a colony of springtails. They eat the mould before you would have seen it. It is what happens on a forest floor, and it costs us about forty pence.

I bought one in March and forgot about it until August. It was still green. That has never happened with any houseplant I have owned. Priya · Leeds

Saturdays, twice a month

Build one yourself, at the long bench.

Two and a half hours, six people, everything provided. You leave with a planted vessel and the confidence to keep it alive. £65, and it does not matter if you have never touched moss before.

Six places All materials Take it home No experience needed
Book a place · £65

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