Which is known as the Garden of Europe?

Keukenhof (English: "Kitchen garden"; Dutch pronunciation: [ˈkøːkə(n)ˌɦɔf]), also known as the Garden of Europe, is one of the world's largest flower gardens, situated in the municipality of Lisse, in the Netherlands. According to the official website, Keukenhof Park covers an area of 32 hectares (79 acres) and approximately 7 million flower bulbs are planted in the gardens annually. Keukenhof is widely known for its tulips, it also features numerous other flowers, including hyacinths, daffodils, lilies, roses, carnations and irises.

Each autumn, 40 gardeners plant the 7 million bulbs, donated to the park by over 100 growers. Planting starts early October and is usually completed by 5 December, around Sinterklaas. The flowerbeds are synchronised to the different bulb flowerings to ensure blooms throughout the duration of park's 8-week opening.To ensure continuous bloom, three bulbs are planted in each location. The shallowest bulb will bloom first for three weeks, followed by the subsequent layers.