Gardens daily dawn to dusk. Building open Mon.-Fri. 9-5, Sat.-Sun. 10-5. Ninety-minute guided tours are given Tues. at 10 and Thurs. at 6, May-Sept.; phone ahead to confirm availability. Tours leave from the Toronto Botanical Gardens at 777 Lawrence Ave. E. Information center open Mon.-Fri. 9-4, Sat.-Sun. noon-4. Closed statutory holidays.