I bought a lavender plant ( non specific in type) in a pot from Tesco in the Summer. I have left it in the pot and it blossomed well. Now the flowers are fading and I was wondering what I need to do with it so it remains healthy over the winter.
You need to cut it off hard now - to remove virtually all the existing grey leaves. If you don't, those shoots turn to woody material and you end up with a very leggy plant.