Thousands of visitors are expected at Chatsworth, as the country house in Derbyshire hosts the RHS flower show.
13 show gardens will feature in this year's event, in addition to exhibitions from 74 award-winning nurseries.
There will also be 15 long borders, which is twice the number last year.
The event runs from tomorrow to Sunday, June 9.
It comes as Chatsworth begins the biggest transformation of its celebrated, 105 acre garden since Joseph Paxton's work more than 200 years ago.