The pots, which were developed by Caledonian Tree Company managing director Jamie Single, encourage the growth of stronger root systems.
Single offered to give Oatridge a supply of the pots on the condition that horticulture tutor George Gilchrist would undergo a crash course at the company’s demonstration nursery at Stair in Ayrshire.
Gilchrist said: "Jamie could have made a quick sale, because I wanted to buy some, but instead he made an offer not to charge, on condition that he got the chance to explain the whole concept. He was right, because to be successful you have to radically rethink traditional growing methods."
Oatridge has built a new 6x12 metre Keder Greenhouse for the Air Pots-grown plants and the college has also invested £2,000 in an automatic irrigation system, which will be installed soon.