Holland Flowers Festival. Get off the beaten track and take on the challenge called Holland Flowers Festival. The magnificent location in the Greenery Halls in the Dutch town of Wervershoof is the place to be this year to pick up surprising ideas for your home, garden and free time. Top arrangers have joined forces to put together the world’s largest and most multifaceted flower show, including thousands of tulips, lilies, hyacinths, crocuses and other bulb flowers. Holland Flowers Festival: blooming with ideas and guaranteed a great day out!