To purchase UCR Botanic Gardens branded merchandise please click Pay Online on the website. Please allow 3 days between ordering and in-person pickup. In person pick up: BG Entrance Thursdays 9am-12pm and 1st & 3rd Sundays 9am-12pm. Contact Nancy Cullen for inquiries or call 909-553-0689. 1 Botanic Gardens Dr. Riverside, CA 92507