The Dunedin Botanic Garden is New Zealand's first botanic garden and is also a Garden of International Significance. It is home to more than 6,800 plant species and is spread across both rolling hills and flatlands. Wild native bellbirds, wood pigeons and tui can be heard on most days. The garden occupies 30.4 hectares in North Dunedin. Its varying range of floriculture and horticultural includes roses, herbaceous and perennial borders, a rock garden, New Zealand native plants and four hectares of Rhododendron Dell. It also houses a New Zealand Native plant collection including cultivation of rare and endangered native plant species.