Less frost-resistant than narrow-leaved lavender. In open ground, it requires shelter or transplanting into a container for wintering in a cool, bright room (5−10°C).
Recommendations:- In autumn, carefully prune the inflorescences without touching the old shoots;
- Cover the plant with a layer of mulch and spruce branches, construct an airy dry shelter from non-woven material, such as agrofibre or spunbond.
- During harsh winters, it is advisable to transplant lavender into a container and bring it indoors.