Elizabeth Przygoda of Boxhill Design discusses ways to update a landscape that's no longer in style, from 9 a.m. to noon, Saturday, March 23, in Ed. Center 1; $8, $6 senior, $5 active military, $4 student with valid ID, $2 ages 5 through 12, free member or child younger than 5, includes admission to the park. Reservations are required. Visit tohonochulpark.org
for more information.