Gebr. Valkering are four brothers: Adriaan, Rian, Willem, and Niels. Since 1987, we’ve been running a flower bulb and perennial nursery.

We grow our products on 33,5 hectares (approx. 82,8 acres), in nutrient-rich sandy-soil, at Rinnegommerlaan (Sammerpolder), Egmond aan den Hoef, North Holland, The Netherlands. Here at Gebr. Valkering, we specialize in cultivating high-quality Alliums, Zantedeschias (“Calla Lilies”), and various high-quality perennials. We are the exclusive growers of the Allium Globemaster® and, since 2012, the Allium Red Mohican®.