Approximately 5 acres of semi-wild garden, with natural woodland walks alongside unspoilt River Camel. Many wild flowers, with extensive planted displays of culinary, medicinal and aromatic herbs, shrubs and herbaceous plants. Active mill-leat with water gardens, fountains, aquatics and bog plants. Botanical interest, selection of herbs and aquatic plants for sale. Raised patio pond, stocked with aquatics, koi and other fish. The Old Mill Herbary is located in an idyllic valley setting, with about 3 acres of semi-wild terraced gardens on a steep south facing bank. There are mature woodland walks interspersed with several islands and bridges alongside the unspoilt river Camel, now an SSSI and SAC.
The mini arboretum of approximately 1.25 acres, is planted with over 40 named unusual trees, in a small level meadow adjoining Helland Bridge, which is listed in "The Patent Rolls" of 1381.