The expert gardeners at the Smith-Gilbert Gardens in Kennesaw are out to prove that good things really do come in small sizes by devoting an entire day to a celebration of bonsai trees. Programs will showcase the history, culture and art behind the Japanese tradition of growing miniature trees. Founder Robert Gilbert’s personal bonsai collection will be on display, and bonsai expert Rodney Clemons will offer how-to demonstrations. Visitors also can take part in a silent auction of bonsai-related items and purchase their own bonsai trees.

10 a.m.-4 p.m. Nov. 15. Free for garden members, $7 for adults, $6 for seniors and active military, $5 for children ages 6-12. Smith-Gilbert Gardens, 2382 Pine Mountain Road, Kennesaw. 770-919-0248, smithgilbertgardens.com.

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