Drying Patchouli

Just by smelling the leaves of the plant I can see where it would be a stress reducer. I have tried to dry the leaves but the smell is not the same. How can I get a lasting smell from my plants? Thank you, Marian

The most intense scent is in the seedheads. Patchouli does not flower that freely – it seems to take a year or so for it to reach flowering size. But when it flowers and forms seed heads, the scent is unmistakeable. Gather the seed heads and dry normally.