Overwintering on the balcony greenhouse is not an unsolvable problem for most plants. Even small greenhouses can be upgraded to be frost-proof with double-walled or hollow-chamber panels without major material expenditure, so that even exotic plants can get through the cold season unscathed.
Even small greenhouses can be converted to spend the winter on the balcony
If you don't have a garden yourself, you can alternatively use your greenhouse on the balcony to overwinter certain plants with the help of a few technical precautions. For example, those that cannot stand the dark basement or are too voluminous to tow them down several floors. A frost-proof conversion can already be achieved by converting your already used balcony greenhouse completely covered with plastic sheets.
Twin-wall panels as greenhouse insulation
The relatively inexpensive panels are made of polycarbonate, are shockproof, UV-resistant and available in various thicknesses. Cut to size and mounted on a wooden frame with hinges, an insulating panel for the balcony greenhouse is quickly bolted together, which can then be opened and closed in milder temperatures can also be used for ventilation can. If necessary, the panels can be covered with bubble wrap, which means that even particularly severe frost cannot harm your plants.
tips
The installation of an additional heating system should be avoided, if only in the interest of fire protection, but also in the interest of peace in the house with neighbors and landlords. Polycarbonate panels are even used in aircraft construction and are frost-resistant down to -25 °C.