Timing is the whole argument, so here is the calendar as I would run it. April is the driest month on average here (40.8 mm) and May the sunniest (194.7 hours) - book the walkway and the garden lawns into those weeks. July brings the Jazz & Blues Festival (16-25 July 2027). In the cold months the garden fights back after dark: Christmas at the Botanics runs 19 November to 30 December 2026, ticketed, with relaxed sessions at 4pm on 29 November, 2 and 9 December. And the indoor anchors, if you build a trip around them: Barenaked Ladies at the Queen's Hall on 7 December 2026, Count Arthur Strong at the EICC on 30 May 2027, Jo Whiley's 90s Anthems at the Corn Exchange on 28 May 2027.