Cliveden, Cliveden Road, Taplow, Maidenhead, Buckinghamshire, SL1 8NS. National Trust. Visitors to Cliveden can enjoy walking through a sea of bluebells in the ancient woodlands that surround the gardens. There are many wild flowers growing at this National Trust garden; look out for anemones, violets, cowslips, and celandines. Cliveden is open daily from 9.30am until 5.30pm. Information for disabled visitors can be found here.