The Content Of The Article:
If you buy a palm in the specialized trade, you will always find the maximum average temperatures that the species tolerates. This temperature should be remembered, or keep the note on which they are noted, well.
If winter breaks in then you should not protect the palm immediately. Only when the expected temperature is only about 5Â° C above the maximum temperature that can cope with the palm, a winter protection is necessary. It is then useful to attach a so-called min-max thermometer to the palm. These special thermometers are also available in the garden market. They indicate the coldest and warmest temperature at the location of your palm, so you can tell if winter protection is needed. Often, the prevailing temperatures vary significantly from those measured by the weather service in open fields.
This variant is especially recommended if your palm tree is in the protected area of the house walls. Because here are often extreme temperature differences.
Once it is time to protect your palm, there are a few basics to consider. In general, the root ball of the palm tree is the most sensitive to frost. That is, palm trees set in planters can freeze faster than those planted directly in the protective soil. The trunk of the palm tolerates a little more frost, the leaves on the other hand, most of the frost. Although some leaves of the palm fall off in winter, this is no cause for concern, because as they grow annually, this does not affect the life of the entire plant.
For light frosts, you can loosely tie the palm leaves together with a rope. Be careful not to tie them too tightly to prevent the formation of rot. Also, a tie-down wire is not suitable because it could cut into the delicate leaves. The root ball should be covered with straw, leaves or bark mulch. So it is optimally protected from the cold.
If medium winter protection is necessary due to the temperatures, the leaves are tied together and the roots are covered. In addition, the leaves are wrapped with a jute sack or a straw mat. As soon as the temperatures start to rise again, you should also remove them to give the plant air to breathe.
Protect your palm against heavy frost by tying it together as described above, instead of wrapping it with a jute sack but with special bubble wrap. Make sure you have sufficient ventilation. Because especially in winter, you do not notice the power of the sun, but under the bubble wrap creates a true greenhouse effect. This may then lead to wetness and rot of the plant under certain circumstances.
Even if you want to use a temporary greenhouse for the palm, this should be easy to ventilate. Because even here there is a risk of decay. As there are often several sunny and warm days in a row, even in winter, you should free your palms during this time from their winter protection. So the plants can breathe easier and the danger of rot decreases considerably.
In some cases it is also possible and necessary to install an additional heater for the palms, in the form of a radiant heater. It is best to place it on a box to protect it from moisture rising from below. The supply lines should also be moisture-resistant if possible. You should avoid direct heat radiation directly on the palm, as this would not be able to cope with the extreme temperature differences.