Popera at the Rose Garden: 25 June Share this Date(s): 25 June, 2017 Time: 3:30 PM Location: High Wycombe,Hughenden Valley,Valley Road Popera at the Rose Garden, High Wycombe. An Open-Air performance of Popular Opera and Musical Classics at The Rose Garden in Hughenden Valley. Tickets priced at £15.00 per person (under 18: £7.50). Two adults at £25.00. Group of 10 for £100.00. Doors open at 2.30pm.