A multi sensory activity area was opened at Chailey Heritage Foundation which cares for young people with complex disabilities.
Money was raised by pupils from Oriel High in Crawley, who collected more than £14,000 with a sponsored ten mile walk.
Students who raised the money celebrated the opening by planting the new raised beds on Thursday March 26.
They tested the equipment and enjoyed refreshments made by the young people and staff at the centre in Haywards Heath Road, North Chailey.
Dr Martin Langner, the charity’s senior engineer, said: “Many of our young people have difficulty in understanding how they can make things happen around them.
“Multi-sensory environments improve the development of thought, intelligence and social skills whilst also offering those with cognitive impairments and other challenging conditions the opportunity to enjoy and control a variety of sensory experiences.”
Chailey Heritage development director, Sally-Anne Murray said: “We all feel incredibly humbled by the enthusiasm and determination of the pupils at Oriel High to raise the funds to build this fantastic outdoor multi-sensory activity area for our young people.
“To have raised so much is a remarkable achievement and one they should be really proud of.”
Mum Amanda, whose daughter Rosie, 14, lives at Chailey Heritage, said: “Rosie can feel and smell the flowers in the raised garden beds, play with the water feature, explore the light tunnel, and rest in the shade.”