Mainau Island
Baden-Württemberg
Mainau Island is a picturesque German island located in Lake Constance near Konstanz, Baden-Württemberg. Renowned as a 'flowering island,' it boasts a unique subtropical climate that supports an extensive variety of exotic and Mediterranean plants, including banana trees and palms. The island is famed for its large arboretum, established by Grand Duke Friedrich I in 1856, which contains around 500 species of deciduous and coniferous trees, such as some of Europe's oldest giant redwoods and dawn redwoods. Visitors can also explore the tropical greenhouse hosting thousands of butterflies. The island combines natural beauty with historical charm, featuring historic buildings and a park landscape offering stunning views of the lake. Owned by the Lennart Bernadotte Foundation, Mainau Island is a major tourist attraction on Lake Constance, celebrated for its continuous floral displays and environmental stewardship.
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Tip: The best time to visit Mainau Island is during spring and summer when the flowers and gardens are in full bloom. Visitors are advised to purchase tickets in advance, especially during peak tourist seasons, to avoid queues. Discounts may be available for groups, seniors, and families. The island is accessible via pedestrian bridge, ferry services from nearby towns, and has parking facilities on the mainland. Comfortable walking shoes are recommended due to the island's size and varied terrain.
Interesting facts
- •Mainau Island is home to one of Germany's oldest dawn redwood trees (Metasequoia glyptostroboides), planted in 1952.
- •The giant redwoods on Mainau were planted in 1864 from seeds brought from California, making them among the oldest in Europe.
- •The island is affectionately called the 'Flower Ship' by Count Lennart Bernadotte, reflecting its constant renewal of floral displays.
- •Mainau covers approximately 45 hectares and has a circumference of about three kilometers.
- •The island supports subtropical and even tropical vegetation due to its warm microclimate influenced by Lake Constance.
History
Mainau Island's arboretum was created in 1856 by Grand Duke Friedrich I of Baden, who introduced many exotic tree species, including giant redwoods from California.
The island has been inhabited by a small population since at least the late 19th century, with notable stewardship by the Bernadotte family since the mid-20th century.
In 1971, Mainau became part of the city of Konstanz administratively.
The Lennart Bernadotte Foundation, established by Prince Lennart Bernadotte, has owned and maintained the island since 1974, preserving its botanical heritage and promoting sustainable environmental practices.
Place Guide
Arboretum1856
The arboretum is the heart of Mainau Island, featuring 500 species of rare and valuable deciduous and coniferous trees. Highlights include giant redwoods (Sequoiadendron giganteum) planted in 1864 and dawn redwoods (Metasequoia glyptostroboides) planted in 1952, alongside cedars and tulip poplars. It extends northwest from the castle area and showcases the island's rich botanical diversity.
Tropical Greenhouse
A greenhouse maintaining a tropical climate, home to thousands of butterflies and exotic plants not native to the region. It offers visitors an immersive experience of tropical flora and fauna year-round.
Historic Buildings and Castle
The island contains historic buildings including the castle residence of Count Björn Bernadotte, reflecting the island's aristocratic heritage and ongoing family stewardship.
