RHS favourite Jekka McVicar has fronted the RHS grow-your-own campaign's herbs element and has won huge media coverage for her show exhibits, books and nursery.
Vale of Glamorgan-based Herbs in Wales co-owner Sarah Maurice said: "We've known Jekka for a long time. She has done the market a lot of good. She inspired us to start and now we are anticipating increased demand.
"Herbs are a big part of the grow-your-own boom. People like trying new things and are fed up of food being tampered with."