The project offers 62 jobseekers six-month employment placements in the first year. It targets people recovering from mental ill health and disabilities and adults with learning difficulties.
A representative said: "The project offers those looking for work the chance to learn and provides Perthshire's businesses with plants, advice and equipment.
"The Shaw Trust also runs enterprises in retail, woodwork and recycling. Horticulture helps us help people across a wider range of fields and is a good way of making our presence known."
Perth & Kinross councillor Dave Doogan added: "Ultimately the aim is to celebrate the exit of people from the social enterprise into permanent employment opportunities or training."
Shaw Trust chief executive Roy O'Shaughness said: "Our partnership with Perth & Kinross Council helps people overcome hurdles on their journeys into employment.