The planting
Six spoonfuls of beech loam, river charcoal, and a thumb-sized stone from Bracken Gill. Rainwater added: 187 ml.
IPrivate collection glasshouse room 04
A worldunder glass.
Planted by hand in March 1972. Watered once. Sealed, mostly. Still making its own weather.
54years closed
6.8 Lliving volume
98%humidity
Closed cycle stable
Glass temperature 20.6°
descend into the canopy
01 Custodial record
Care, in the loosest sense.
“Sealed. Opened once, 1994, regretted.”
The opening
A loosened seal admitted dry August air for eleven minutes. Two fronds curled by nightfall. Humidity recovered after 43 days.
IIStill breathing
No intervention. The small fern at western glass produced its 416th measured crozier. Condensation pattern normal.
IIIA closed garden is not unattended.
It is attended by everything inside it.
02 Species census
Six citizens.
No arrivals recorded.
Counts are taken through glass each solstice, using a brass lens and unreasonable patience. The colony has arranged itself without us.
01 / 06
Maidenhair spleenwort
Asplenium trichomanes
17 crowns02 / 06
Veil moss
Hypnum cupressiforme
38% ground cover03 / 06
Thread liverwort
Cephalozia bicuspidata
9 mapped mats04 / 06
Creeping fig
Ficus pumila ‘Minima’
2.4 m traced stem05 / 06
Heartleaf pennywort
Hydrocotyle cordifolia
31 visible petioles06 / 06
Glasshouse springtail
Folsomia candida
Population uncountableUninvited but tolerated Springtails, one pale millipede lineage, and the silver dust of an unnamed slime mould.
Locally vanished Cushion moss, last confirmed 1981. Its stored water likely persists in everything else.
03 Closed-cycle study
Nothing leaves.
Everything changes.
Morning light warms the leaf litter. Water rises, gathers on glass, and falls. Old tissue becomes soil; soil becomes frond; frond becomes shadow.
- Day
- 20.6° C
- Night
- 17.2° C
- Cycle
- ≈ 9 h 40 m
One atmosphere
in continuous repair
in continuous repair
04 Observer’s ledger
Things seen
through the glass
Selections from the uninterrupted record of E. Vale, custodian from 1978–2011, and her granddaughter Mara, who inherited the key that must not be used.
The first drop
Forms above the northern fern. It hesitates for almost a minute, holding the whole garden upside down, then chooses the old path.
A green weather
Sun through the eastern window. Oxygen pearls gather at the moss tips. The jar appears briefly full of stars.
The fern remembers
A new crozier leans toward the pale scar left by the opening. There is no reason it should remember. It does.
Respiration
The inner pane dims from below, as if the soil itself has breathed upon it. Room temperature unchanged.
Never polish the inner surface.
— E.V.
The oldest instruction remains the best