On Sunday 26th April 2026, Manor of Dean Garden will be opening from 2pm until 5pm for the NGS. Manor of Dean, Tillington, Petworth, West Sussex, GU28 9AP. This garden extends to around three acres of traditional English garden with extensive views of the South Downs. Spring flowering bulbs, walled kitchen garden. NB some parts of the garden may be affected by building work. For all the details, please click here.