People of all ages will enjoy this festive event at the Greater Des Moines BOOtanical Garden! Trick-or-Trees will feature interactive activities, entertainment, and opportunities to learn about trees and spooky botanicals throughout the outdoor gardens. Costumes are encouraged! An outdoor screening of "Little Shop of Horrors" will begin at 7 p.m. On-site activities throughout the three-day event will include: educational activities about trees and spooky botanicals, botanical potions activity, festive, botanical displays from Garden supporters, carved pumpkins throughout the Garden and so much more!