On Wednesday 6th May 2026, Riverhill Himalayan Gardens will be opening from 10am until 5pm for the NGS. Riverhill Himalayan Gardens, Riverhill, Sevenoaks, Kent, TN15 0RR. This beautiful hillside garden has been privately owned by the Rogers family since 1840. Visitors can admire spectacular rhododendrons, azaleas and fine specimen trees. Explore the Edwardian Rock Garden with its extensive fern collection. The Rose Walk and Walled Garden with sculptural terracing look great at this time of year. Take the Bluebell walk and enjoy a spectacle of flowers. Riverhill Himalayan Gardens enjoy extensive views across the Weald of Kent. There will be plants for sale at this opening. For more information, please click here.