Here you will find frequently asked questions and answers.



The temperature should therefore be neither too low nor too high, otherwise it will be too damp or too dry. It’s best between 18 and 29°C without direct sunlight.



The plants selected by us are extra slow growing and additionally live in nutrient-poor soil. Should they nevertheless grow too large, simply cut off the plant above the leaf branch. If only individual leaves are in the way, they can be can easily be removed from the stem.
Your bottle garden should then remain open for about 24 hours, so that all cuttings can heal well.
Dein Flaschengarten sollte anschließend ca. 24 Stunden offen stehen, damit sämltiche Schnittstellen gut verheilen können.



It’s time for watering as soon as the moss appears light green and dry. You can also carefully reach into the glass and touch the moss. If it feels dry, your biotope needs water.
Your bottle garden prefers low lime filtered water, you can buy still water or use rainwater, for example. You spray the water on the inside of the glass, but never directly on the plants. If the glass is wet, the water is running through the soil and down to the stones you watered enough. For watering it’s best to use a water sprayer, otherwise, a shot glass is also helpful.



The plants need a room with at least one window to photosynthesize. However, it is important that your bottle garden is never directly exposed to the sun. As soon as it’s standing in the sun it getting too hot inside of the glass and the plants wither.



Usually, your glass will only steam up slightly from the inside in the morning and evening. If you notice that it is fogging up a lot during the day, you should definitely change the location and leave the glass open for 24 hours. This is usually a sign that it is too hot or too cold outside the glass.

The moss of your bottle garden looks yellow - why is that?

There can be two reasons for this. The moss either becomes paler because it needs water again or because the bottle garden was too bright and the moss is “burnt”. If the bottle garden gets too much light or even direct sun, the moss dries out and burns. In this case look for a new shady place and replace the moss. You can get this from our shop or via

There are little flies in my bottle garden - what do I do now?

Small brown insects with wings – you know them from open pots of house plants. This is the fungus gnat, which lays its eggs on moss or the surface of the earth. If it is only a few specimens, you can try to let them out of your biotope with the lid open. However, if they have taken the upper hand, you can get “yellow boards” from the drugstore. These can be hung in the biotope without any problems, the fungus gnats stick to them after a while. You should also take out your moss and rinse it under running water. If it does not get better after 1 week, contact us via

There is mold in my bottlegarden - what should I do?

The formation of mold in your bottle garden is a completely natural and normal process. It shows you that the biotope works and is alive. Mold usually manifests itself with a white-furry covering, which arises on dead plant parts and does not harm your biotope. In the wild, dead plant parts dry and are returned to the soil. However, since there is high humidity in your biotope, a layer of mold forms to decompose the leaf. You can easily remove the affected leaf. If the white coating has already passed onto living leaves, you can dab them with a clean, damp cloth. Then leave your bottle garden open for about 30 minutes. If you have problems with the mold in your biotope or if you want to ask us a question about it, just send us an email to:


Leaves of the coffee plant/mini mountain palm become brown

If the leaves of the plants in the glass turn brown, your bottle garden is either too moist or too dry. In both cases a change of location is advisable. If your biotope is too humid, then in most cases it is too dark. Find a place closer to the window, but there should be no direct sunlight. If it is too dry in your bottle garden, water it a little and choose a place at least 1m away from the window so that the sun never shines directly into the glass. In addition, brown leaves should always be removed, as the high humidity will cause it to quickly begin to mould.

Biological processes that take place in your bottle garden

In nature there are many different processes that we hardly notice, because they are natural or not visible to us. Let’s have a look at a deciduous tree in autumn: It loses leaves to save nutrients and water for the winter. The leaves fall to the ground, dry out or rot – but not in the city, where they are often disposed of. In the natural cycle of the tree, they should be left lying around, as they decompose and are returned to the ground as nutrients.

The same happens in your bottle garden! Since they are living plants, they too lose leaves from time to time, which are too weak. This is an absolutely normal process, with one major difference: there is a high humidity in your bottle garden. The leaves cannot simply dry out or be decomposed by worms. This is why a light white-fluffy layer of mould grows on fallen leaves and branches.

Mould can also grow on parts of the plant that are still alive. If you put your plants in the glass, you may accidentally injure them. With ginseng bonsai, for example, a small white fuzz can form on the trunk or branches. This is an injured area and can easily be dabbed off with a clean cloth or brush. The healing process can take several days, so you may have to repeat this pro.


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