"Gardening With Wildflowers" takes place at 10 a.m., Saturday, Oct. 17, in Classroom 1 of the Education Center. $4 members; $8 nonmembers. "When Grass Is Not a Lawn: Designing With Native Grasses" takes place at 2 p.m., Saturday, Oct. 17. $8 members; $10 nonmembers. Call or visit www.tohonochulpark.org for more information.