The sun-hungry lavender originally comes from the Mediterranean region and is therefore - with the exception of real lavender - not hardy. Seedlings and young plants in particular are very sensitive to cold. In order for the subshrub to thrive and bloom profusely in your garden (or in a pot), it needs warmth in addition to the right location and optimal care. In order to grow lavender successfully, it is important to plant at the best possible time.
When is the ideal time to plant lavender?
Lavender should be planted outdoors between mid-May and early August, after the Ice Saints and without risk of frost. Potted lavender can be planted any time from March to September as long as the location is protected. Indoor lavender is best in spring.
Don’t plant lavender too early
You should only plant lavender outdoors when frosty periods are no longer expected. This is usually the case from mid-May - i.e. after the Ice Saints. You can then plant the plants in the garden until around the beginning of August; it is better not to plant them out later. Lavender planted too late no longer has enough time to develop strong roots and prepare for winter.
Pot planting possible almost at any time
Unlike garden lavender, potted lavender can be planted at any time during the growing season between March and September - provided the plant is in a protected location. During the cold season, lavender should be kept as cool as possible - but frost-free - over the winter, with the plant largely ceasing growth activities. Therefore, planting or transplanting during this period makes little sense, as the roots cannot grow. Indoor lavender should also ideally be planted in spring.
Prefer lavender
Lavender can be grown from seeds from February / March on the windowsill or in the greenhouse with sufficient lighting conditions - the plant is a light germinator. Planting early ensures that the lavender will still bloom that same year. Even the early plants can only be put into the bed from mid / end of May, or even better in June.
Tips: Young lavender plants are quite sensitive to cold and other unfavorable growing conditions. Older plants tolerate short periods of cold better, especially if they are well rooted.
Additional information on cutting lavender is compiled here for you.
