Fernglen Gardens is a native plant garden and bush reserve at 36 Kauri Road, between numbers 34 and 48, in The Gardens area of Auckland. It covers about 9 acres of Kauri Association bush, with about half an acre under cultivation for growing and preserving New Zealand plants. Walking tracks take visitors past very old kauri and rimu, and many species are labelled with botanical, Māori and common names.
Highlights include an enclosed fernery with the Prince of Wales Feather Fern, a bush walk through a nīkau tree fern gully, and a self-guided tour with a guide sheet from the kiosk. Birds such as the grey warbler, kererū, tūī and silvereye can be seen all year. Entry is free, and the gardens are open daily during daylight hours. Visitors are asked to keep dogs on a lead and clean their shoes at the kauri dieback stations. Fernglen is run by volunteers from the Fernglen Native Plant Gardens Committee and Trust, and the site is owned by Auckland Council.