Open Gardens of Belgium: http://www.jardinsouverts.be/ (in French) http://www.open-tuinen.be/ (in Dutch)
Nursery Epimedium: http://www.epimedium.be/engels/home.html
Tourist office city of Damme:http://www.visitdamme.be/en
Tourist office city of Bruges: https://www.visitbruges.be/en
Tourist office Knokke-Heist: https://www.myknokke-heist.be/en
Tourist office city of Brussels: https://visit.brussels/en
Tourist office city of Ghent: https://visit.gent.be/en/home
Tourist office city of Antwerp: http://www.visitantwerpen.be/en