College Garden

College Garden is a private garden of Westminster Abbey in London, open to the public every Tuesday, Wednesday and Thursday afternoon throughout the year. The hours are 10 am - 6 pm in summer and 10 am to 4 pm in winter. The Garden can be visited separately from the Abbey and no charge is made to visit the Garden alone. While visiting College Garden, it is also possible to visit the Little Cloister Garden, a small garden with a fountain in the cloisters, and St Catherine's Garden which is in the ruins of the old monastic infirmary. Probably the best time to visit the gardens is in the spring.

More information on the Wikipedia page [https://en.wikipedia.org/wiki/College_Garden.