Botanischer Garten Krefeld, Botanical garden in Krefeld, Germany.

The Botanischer Garten Krefeld, formally the Botanischer Garten der Stadt Krefeld, is a municipal botanical garden at Sandberg 2 in the Oppum district, on the edge of the Schönwasserpark. Its 3.6 hectares hold about 5,000 species and varieties, edged with deciduous trees, shrubs and conifers. Sections include a rose garden of some 3,000 specimens in 150 varieties, an alpine garden, a medicinal herb garden, a rhododendron area and a Lower Rhine farm garden; greenhouses keep cacti from South America, African succulents, Canary Islands plants, carnivorous plants and orchids.

The garden grew out of a small school garden in 1927–1928, on the edge of the Schönwasserpark in the Oppum district of Krefeld. It was laid out as a municipal botanical garden with scientific departments and themed sections, and by 2008 it held around 5,000 plant species on 3.6 hectares. The cacti house was stocked largely with plants from the collections of the Krefeld cactus enthusiasts who care for it.

The Apothekergarten holds about 100 medicinal plants arranged by their uses, with signs giving each species' name, origin and active compounds; boards explain the history of herbal medicine and correct dosage, and poisonous plants are shown alongside. The Niederrheinischer Bauerngarten is worked as a school garden: classes and working groups from the nearby Hauptschule Schmiedestraße tend the beds every week. The rose garden's roughly 3,000 roses are reached by a small wooden bridge leading to the rhododendron area.

The garden lies at Sandberg 2 on the edge of the Schönwasserpark in the Oppum district, and admission is normally free. The cactus greenhouse opens only on the first Sunday of each month from May to October, when members of the Krefeld cactus society answer questions. The open grounds are best visited in spring and summer.

The cacti house opens only on the first Sunday of each month from May to October, when members of the Krefeld cactus society answer questions; most of the plants come from their own collections. The Lower Rhine farm garden is worked as a school garden by classes from the nearby Hauptschule Schmiedestraße.