Communications adviser Mary Anne Gill says the garden is a great extension on from the room, which has played a big part in helping those with intellectual disabilities.
"There is a lot of research that says participating in a sensory room is good for you," Mary said.
"You see people coming in, going into the sensory room agitated and then they come out all calm.
"The latest research now talks about the benefits of a sensory garden, touching and feeling of plants, somewhere people can get a sense of what is around them."
The garden is fully accessible, with a wheelchair ramp and plenty of room to navigate around.
Plants line the walls around the garden, while a pebble patio shares the space with a small grass section, a hammock set-up on the grass, the sound of trickling water providing ambience for those passing through.
The garden has been in planning for three years now. Occupational therapy students were involved in the design and helping with the accessibility within the garden.
In May, the construction began with four months of non-stop work going into the build.
The budget was small and largely depended on donations from outlet stores such as Mitre 10, Placemakers and The Warehouse.
A group of volunteers helped with the construction of the garden, which had a few bumps on the way according to Elroy Liddington, one of the volunteers.
"The hardest part was the concreting. We levelled it and then it absolutely poured and ruined the concrete. A friend had to come in with a special machine and make do with what was left, just a matter of persistence," Mr Liddington said.
Graphic designer Neda Nourmohammadi helped with the design of the garden, after seeing an advertisement appear on Volunteer Waikato.
"I'm happy with it, there were some small changes but if they are happy then I am happy," Ms Nourmohammadi said.
The garden has officially started accepting appointments from Tuesday, September 5. Parents and support workers must attend a workshop before using the MSE room and garden.
