Orpington is a very easy destination to reach by train from Charing Cross, Waterloo East and London Bridge or Victoria (Fast from London Bridge - 20mins)

 

Trains from Beckenham, Bromley, Tunbridge Wells and Sevenoaks are direct to Orpington on the Hastings line
 

Come out of the town centre exit and take any number of buses to Orpington High Street, alight at the Walnuts Centre and the gardens are a 5-minute walk.