Bentley Training Centre helps young people in areas like growing fruit and vegetables, hard landscaping and grounds maintenance.
The Doncaster centre is being changed by students as part of their studies and will include allotments for fruit and vegetables, a paving training area and a shop.
The shop will sell bird boxes, benches and hanging baskets made by the students, said cabinet member for children and young people Councillor Patrick Wilson.
Youngsters study City & Guilds Level 1 in horticulture and will have a chance to gain a placement with the council's neighbourhood-management team.
This could lead to an apprenticeship for the 12 part-time students aged 16 to 18. The centre hopes to take on more students in the next academic year. Food grown in the centre's allotments will be used in school meals, and long-term plans include community classes on making hanging baskets and healthy eating. Funding for the training centre comes from Doncaster's work, skills and enterprise programme.