This 2.7 acre walled garden was built in the 1770's to provide fruit and vegetables for Cally House, former seat of the Murray-Usher family and now a hotel. Robert Heron, Burns' friend, wrote in 1792, 'No expense has been spared to accommodate them to the stately elegance of the house, and to the dignity and fortune of the proprietor. They contain greenhouses and hothouses, with all the variety of foreign herbs and fruits, which, in our climate, it is necessary to cherish'. In 1848 William Pearson, the Head Gardener, noted that 12 gardeners, (earning 50p a week each,) were needed to keep it in good order. During the 1939-1945 war 300 Glasgow children were evacuated to Cally and they 'dug for victory' here.

Since 1987 the garden has been replanted with a unique labelled collection of 3,500 varieties, especially rare perennials and grasses. A selection are available pot-grown in the sales area and by mail order. There are old greenhouses, a bothy and forest trails in the Cally Oak Woods which surround the garden