"Dr. Ergot Ratbane" tells stories about the evil deeds of plants, then provides a flashlight tour of weird and dangerous plants in the gardens, from 4:30 p.m. to 9 p.m., Wednesday, April 27. $8 adult; $4 child age 4 to 12; free member and child age 3 and younger. Includes admission to the gardens. Call or visit tucsonbotanical.org
for more information.