Castle Hex in Heers, Belgium, is a historic estate dedicated to horticulture and garden enthusiasts. The property serves as an annual venue for Tuindagen & Plantenbeurs (Garden Days & Plant Fair), held each September, featuring rare plant vendors, specialized workshops, horticultural exhibitions, and consultations with experts. The castle grounds provide an exceptional setting for discovering plants and learning about gardening, culinary themes, and plant conservation. Beyond its signature garden festival, the venue hosts concerts and special events throughout the year, functioning as a vibrant community gathering place for nature and gardening enthusiasts.