He has now visited six of 14 schools in the Acorn Group - a specialist schools group for vulnerable and hard to place young people - and started projects at all of them as part of two-year educational project Acorn Grows which started in November.
Pupils are now busily working on a new wildlife garden at Crookhey Hall School, Lancashire, an outdoor classroom at Belmont School, Lancashire, raised beds for ornamentals, vegetables and salads at Longdon Hall School in Lancashire and similar projects at Underley Garden School, Cumbria, The Grange Therapeutic School, Rutland and The Shires, Lincolnshire.
Visiting Belmont School, which caters for boys aged from 7 to 18 with social, emotional and behavioural difficulties, last week, he said he was "delighted" with the pupils’ attitude.
The horticulture students carried out surveys and planned design including hard and soft landscaping.
Frost said: "I’ve been working with some extraordinary pupils and teachers, and it’s confirmed something I’ve always thought. My world, the world of horticulture, is perfect for these youngsters.
"What each child gets out of it is different. For some, it’s an opportunity to get stuck in and burn off some of their energy tackling some heavy, physical tasks. Other children get a real sense of peace in the garden and a sense of solace. For all of us, gardening can offer a therapeutic escape from our problems."
Headteacher Mike Stobart said horticulture was a popular subject at the school.
"This project will provide a really useful outdoor space for students and staff. It’s great for pupils and staff to be working with Adam."
Belmont plans for the designs developed by the City and Guilds horticulture students will be built by those taking City and Guilds construction courses.