Perennial herbs, such as lavender, thyme, sage and tarragon mugwort can overwinter both in the ground and in pots.It should be remembered, however, that herbs in pots are more prone to freezing and therefore may require covering with agrotextile or, for example, conifer branches (Fir twigs are the best).For specimens in containers, the most dangerous periods are periods of severe frost, not accompanied by snowfall, as well as prolonged rainfall and sleet.
Due to the limited volume of the pot, any rapid change in weather conditions is immediately "transferred" to the container.When the temperature drops, the earth cools down; when it is still raining, the roots are at risk of rotting.In such cases, the pots should be preventively placed in a greenhouse or a bright room in the house.Lemongrass is especially sensitive to cold, which must be moved to a bright room with a temperature of about 15 ° C.
The potted herbs should be watered and fed rather moderately, because their requirements during the rest period are not too high (the metabolism is significantly slowed down).You cannot, of course, make the substrate completely dry (this also applies to outdoor wintering plants).
Those that stay in the house should be checked frequently for the presence of pests, especially whitefly and mealybugs, for which the warm housing is an ideal place to live.