The Daily Mail has a fascinating feature on David Latimer and his bottle garden, described in the 2015 article as approaching its 54th year, that he started on Easter Sunday back in 1960.
Using a ten gallon carboy, Latimer poured in some compost, a quarter pint of water and carefully lowered in a spiderwort seedling (Tradescantia) using a piece of wire. He then placed the bottle garden by a sun-filled window in his home and let photosynthesis do its thing.
It wasn’t until 1972 (12 years later) that Latimer gave his bottle garden another drink and the 2015 account reported that it remained sealed afterward! How exactly does this work? The Daily Mail explains:
- Bottle gardens work because their sealed space creates a largely enclosed ecosystem that receives light from outside; photosynthesis supplies sugars, while decomposition helps recycle nutrients
- The eco-system also uses cellular respiration to break down decaying material shed by the plant. In this part of the process, organisms in the bottle garden consume oxygen during aerobic respiration and release carbon dioxide which the growing plant can reuse
- The water in the bottle gets taken up by plants’ roots, is released into the air during transpiration, condenses down into the potting mixture, where the cycle begins again
For more pictures and information on this story see the full article on the Daily Mail. Video tutorial on how to make your own below:
HOW TO MAKE YOUR OWN TERRARIUM (BOTTLE GARDEN)
Credits: TwistedSifter
Image Credits: Bnps.co.uk
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Read the timeline before the headline
The age reported in an old feature belongs to that feature's date. Do not automatically extend it into a claim that the garden is unchanged today. A dated account can still be interesting when its observations are kept within the period actually described.
Closed to watering does not mean closed to energy
A sealed bottle can retain much of its water while still receiving energy as light through the glass. Those are different kinds of exchange. The remarkable feature of the reported garden is the long interval without added water, not the absence of an external energy source. Calling it an ecosystem should not obscure the importance of its position and illumination.
The processes inside also have different jobs. Photosynthesis uses light energy to produce sugars; respiration releases usable energy from organic compounds. Decomposition helps return nutrients from dead material to forms that can re-enter the living system. Water can move between the growing medium, plants and air before condensing again. These cycles interact, but they are not interchangeable explanations.
What a home bottle garden still needs
The Royal Horticultural Society's terrarium guide recommends matching plants to the container: small, slow-growing tropical foliage plants suit enclosed conditions, while succulents are better candidates for open arrangements. Its advice favors bright indirect light and avoiding direct summer sun and nearby heat sources. A sealed container is not a reason to stop observing the plants.
The RHS also advises watching condensation and watering sparingly when necessary. Excess condensation can call for temporarily opening the lid, while dead plant material should be removed to reduce problems with mold. That practical guidance is more useful for a new project than trying to reproduce the exact watering interval of a famous example.
Keep a simple record of your own experiment
Photograph the container from the same position and note when you water, open it or move it. Record the species you planted and changes in leaf condition. If growth changes, you then have something concrete to compare with the care history. One successful bottle is a fascinating case; your own record can show how a different container and planting respond under different conditions.
Related reading: PrintGREEN: Printing Seed-Bearing Designs That Can Grow.
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