Treeline Native Nursery is a native plant nursery at 17 Stewart Road in Kaharoa, Rotorua, at 419 metres above sea level. It grows New Zealand native plants in bulk for revegetation, restoration, landscaping and farm planting, and also sells smaller numbers for home gardens. It has supplied regional and district councils, the Department of Conservation, subdivisions, landcare groups and private landscapers, and its plants are ecosourced from the local region. Orders of a thousand dollars or more get competitive freight charges, quoted job by job, and plants travel on a trolley system. The nursery publishes a monthly availability list and holds an early-season wetland plant sale. Customers praise the staff's knowledge and the careful labelling of plants by project. The nursery is open Monday to Friday from 9am to 4pm by appointment only, and it is run by Diane's son Sam Edmonds and his wife Caroline.