Almost every Victoria itinerary includes Butchart, and the practical question is how to get there. The express shuttle from downtown is the cheapest way to arrive with your own timetable; the combined tours add a narrated loop of Victoria's landmarks before or after the gardens and usually include admission; private tours put a driver-guide at your disposal for a half day and often add the Malahat SkyWalk, Brentwood Bay or the peninsula's wineries.
Admission is priced by season and is sometimes included in a tour and sometimes not — the listing will say. Summer evenings bring Saturday fireworks and outdoor concerts; December brings the Magic of Christmas lights; spring is bulbs and blossom. The gardens are open year-round and the winter garden is a real garden, not an off-season apology.
For cruise passengers the combined tours with pickup at Ogden Point are built around ship schedules; check the tour's return time against your all-aboard time rather than assuming.