The first frosts sometimes rage quite early in the fall when we did not expect it. Frost plants that have not yet been protected from frost may leave a few branches there. Fortunately, there are solutions to save a frozen plant, whether in the ground or in a pot. This is what Charly from Jardiland confirmed to us.
Are all plants doomed to die because of severe frost?
Absolutely not. Many plants withstand excessively low temperatures, especially when they have been in the ground for many years. If it were not the case, the earth would be only a sad desert!
What type of plants is frost fatal for?
It is not so simple. The frost is not fatal to all plants, and certain frost plants - that is to say sensitive to frost - can resist the latter once you have prepared the arrival of winter by mulching them, protecting them with a winter veil, stopping watering and storing indoor potted plants. When the cold shows up early and you haven't prepared for it yet, frostbite plants can suffer.
What are the solutions to recover a plant in the ground that has frozen?
Even if it sometimes looks bad, a frozen plant is not necessarily dead. Its leaves have dried in a few hours, are curled up and of a very suspicious brown color. So you can see that the aerial part of the plant has suffered. However, the roots - since they are found in the ground - have probably not suffered the same outrages. Nature does not need to be systematically involved in this case. Leave the frozen foliage in place as it will continue to isolate the roots and protect them from subsequent frosts. Wait for the installation of spring, or even the beginning of June for certain plants: you should note the recovery of the plant by the birth of new shoots.
And how do you save a frozen potted plant?
In this case, the case gets tougher because the roots are in a small volume of soil which does not manage to warm them. Often they also suffer from being compressed due to the transformation of water into ice. It is for this reason that when frost threatens, it is absolutely necessary to ban any watering of potted plants such as lobelia, begonia, geranium, fuchsia or even camellia and azalea. When the damage is done, there may still be a way to save a frozen potted plant if a very small part has been spared. Cut all burned branches without delay with a disinfected pruner, keeping only those that are intact, if there are any, or as close to the ground as possible if the entire aerial part is frozen. You will have more chances of saving the roots. Then store your plant in a well sheltered place. Perhaps you will have the chance to see new sprouts reappear some time later… In any case, you will have to take more precautions the following year. And also beware of dangerous spring frosts for the apricot tree, for example.