To him is you can always count on: Eventually, the Frost comes and the leaves in the garden, the charming Structure of seed stands, autumn fruits and the last of the flowers. However, for sensitive plants, the Frost often brings death.
Whether trees and shrubs survive the cold of winter or not, depends on how well you can adapt. A fostresistente Plant know long before it's cold is that you must prepare for the icy Season. It measures the length of day, "knows" the date, and the probability that there is Frost.
The cell juice, thickened
Already the beginning of September, the Plant begins with the preparations: it slows down your growth. Trees form the base of the leaf stalk, a separation layer, the Discard of the leaves allows. And in the interior of the Plant and the protective devices are in full swing. Because the interior of the cell is allowed to freeze in any case. Frost hardy plants can make it to pump water out of the cells in the intermediate areas. If it freezes there, it does no harm to the cell itself.
The ice Crystals from growing in the spaces beyond the cell, running water and dry them to some extent. The probability that the cell freezes, it is thus smaller and the frost tolerance of the Plant rises steadily. The cell juice is thickened but remains unfrozen. Thus, the bonding of the important proteins and membranes Inside the cell in the thick juice settles the Plant in the cells of various substances, which prevent this.
With a fleece wrapped in a wind-protected wall, The Winter can come. Photo: Peter sky, Huber (Zoonar)
With all these adjustments, the plants are able to brave the cold. Forever green exotic garden shrubs such as rhododendron and cherry Laurel is in the Winter, however, a particular challenge: unlike deciduous plants they do not have to bring only the buds and the branches through the Winter, but the whole foliage. The Thermometer drops below minus 25 degrees, these plants reach their limits and die, because then the formation of ice also covers the Interior of the cells.
Particularly cold-sensitive exotic species and annual plants, which have no strategies to combat the Freezing, the first Frost, completely unprepared. Your cells would freeze, sometimes for 1 to 2 minus degrees, on bursting, the cell fluid occurs, the Plant dies. Some plants, including several Mediterranean trees and shrubs, such as Laurel, Oleander or olive tree, can cope with a couple of minus degrees. In our latitudes, however, you will need a suitable winter protection to survive the cold Season unscathed.
So bring your plants through the Winter
Depending on the micro climate in the garden, the plants need more or less protection. A Plant in a wind-protected place, where they benefited perhaps more from the heat radiation of a wall, needs a lot less, in the best case, even no winter protection. In an exposed location, however, cold sensitive plants may not survive the Winter unscathed. Smaller shrubs, such as rosemary, thyme or sage, go well with Tannästen protect: First, Leaves or straw around the floor, then put around the Branches in the earth plug and this plug in the top with coir string tie. Young Fig trees or fresh set of kiwifruit may be Packed.
The main problem with pot plants in the Winter is that the earth freezes in the pot, so the Plant can not absorb any more water and dried.
With Leaves, the earth and the spaces between the Plant cover and then with good insulating Material to wrap with, for example, Plastic bubble wrap, or coconut Mat. Plastic wrap can also be with a Jute-wrapped. This is visually beautiful and isolated as well. Jute alone and isolated too little. The pot not only all around, but the bottom wrap up and throughout the Winter on a piece of Styrofoam set. Even with this protection from the cold of the pot in between, can freeze, but only for a short time and the Plant can in between to absorb water again.
When palm trees are tied the leaves up together and with the Foliage filled, so that the heart is well insulated. It is then wrapped around the palm heart is a non-woven. This method is also recommended for sensitive stem roses.
potted plants also need to be in the Winter, poured, however, never in minus temperatures, because then the roots no water can record. Most of the plants that will not survive the Winter, not had to be cold, but to little water and are dried up.
Created: 30.10.2019, 20:30 Uhr