Synopsis by Hal Erickson
Jack (John Ritter) and the girls find some rather exotic-looking weeds growing in Mr. Roper's garden. They collect the weeds and hand them to Mrs. Roper (Audra Lindley), who then brings them to her flower-arranging class. The problem: those "weeds" are actually marijuana plants -- and can it be that Mr. Roper (Norman Fell) has suddenly gone to "pot"? This episode was based on "How Does Your Garden Grow?," an installment of Three's Company's British sitcom prototype Man About the House.