A more reliable air-drying method is considered to be a shelter. You need to do it like this. Install the frames over the roses bushes (the height of which is up to 60 centimeters), on the side and on top you need to lay the insulation (for example, cardboard or peramin). Everything should be covered with a film. The ends of the shelter are left open until the temperature drops to minus 10 degrees. But at the same time, it is necessary to constantly monitor the plants and in the case of warming — the end sides must be opened and ventilated by the plants.
