Ornamental Grass Garden Where are the flowers? The Grasses Garden is an example of a xeric garden. Xeric refers to a dry environment, one that needs no supplemental watering. Xeric gardens have a natural beauty in spring, summer and fall. Open Daily: 9am - 4pm (815) 965-8146 Email Klehm ADMISSION Adults: $6 Seniors (62+): $3 Students (18+ with ID): $3 Children: $3 Children 2 and under: free Open Daily: 9am – 4pm (815) 965-8146 Email Us ADMISSION Adults: $6 Seniors (62+): $3 Students (18+ with ID): $3 Children: $3 Children ( 2 yrs or under): Free Members: Free Donation Day is the first Tuesday of every month. AHS Reciprocal Gardens List Klehm Arboretum & Botanic Garden is a 501(c) (3) not-for-profit organization. We are dog-friendly!