The University of Delaware Botanic Gardens will host an illustrated presentation, “Give Your Yard Panache With Perennials,” by garden expert and author Ruth Clausen from 7-8 p.m., Tuesday, March 22, the Townsend Hall Commons on UD’s South Campus. The cost is $15 for UDBG Friends and $20 for nonmembers. Clausen advocates for selecting treasures based on the form, color and texture of foliage, as well as the flowers and cultural needs, to complement a garden’s design. The maintenance and cultural needs of species and selections will be examined and potential pest and disease problems, especially with deer, will be explained. Clausen’s latest books, Essential Perennials and 50 Beautiful Deer-Resistant Plants, will be available for sale and signing. Call 302-831-2531 or email BotanicGardens@udel.edu to reserve a spot. Clausen, trained in horticulture in the United Kingdom, has been gardening more than 50 years and was horticulture editor for Country Living Gardenerfor over seven years. She has written several garden books. In 1989, Random House published Perennials for American Gardens; Hearst Books published Dreamscaping in 2003; and 50 Beautiful Deer-Resistant Plants from Timber Press was published in 2011. In 2015, Timber Press released her latest book with Thomas Christopher, Essential Perennials. The UD Botanic Gardens are open year round to provide ideas and inspiration, or for a quiet stroll. UDBG contributes to an understanding of the relationships between plants and people through education, research, cooperative extension and community support. This article can also be viewed on UDaily.