World Bonsai Day at the Chicago Botanic Garden is May 12 from 11am to 3pm when Bonsai curator Chris Baker and bonsai volunteers demonstrate bonsai rock planting and bonsai tree styling.

FREE- in Nichols Hall. Tour meets in Runnells Courtyard

Garden bonsai volunteers present on-going demonstrations of bonsai repotting, pruning, wiring and design from 11 a.m. to 3 p.m. At 1:30 p.m., Chris Baker leads a tour of the Bonsai Collection. Spring-blooming highlights in the collection may include wisteria, crabapple, and azalea.