I have been searching, but to no avail, for instruction to do an initial prune on a Kew Lavender. The specimen is 30cm tall and has a trunk 2 cm in diameter. 4 cm above the soil line the trunk splits into 5 almost evenly sized branches. Overall it is vase shaped and has a flat crown with evenly distributed second flush flowers. It was purchased from a garden centre this year and grown in the garden. It was transplanted into a perlite,vermiculite, peat moss medium in a shallow 20cm glazed ceramic pot two months ago and suffered no ill consequences. Approximately half the length of each branch is woody. It would freeze if left outdoors so it resides indoors under supplementary lighting with sufficient air flow. Advice appreciated. Thanks.