Perry-Leonard smDr. Leonard Perry has served as an Extension Horticulture Specialist at the University of Vermont for 34 years. In this role, Dr. Perry provides information and programming to the industry of Vermont, region, and North America. His prior training includes an undergraduate degree in landscape design from Auburn University, and both M.S. and PhD. Degrees from Cornell University.

Home gardeners in Vermont and surrounding areas know him from his frequent television appearances on the regional Across the Fence program, periodic radio interviews, and from his regular news articles. As a Professor, Dr. Perry has an active research program on all aspects of perennial production and overwintering. Students know him from his online courses each semester through Continuing and Distance Education at UVM . Online courses offered yearly include Garden Flowers, Indoor Plants, Perennial Garden Design, Home Vegetable Growing, Home Fruit Growing, and Home Hops Growing.
His book, The Fruit Gardener’s Bible from Storey Publishing, a 4-color total revision of Lewis Hill’s Fruits and Berries for the Home Garden, was published in January 2012 and is in its second printing.

Dr. Perry has become known across North America for his internet web site– Perry’s Perennial Pages — at which he features information, links, news articles, research and more on herbaceous perennials. Look him up through this site name on Google or other search engines, or at


Perennials in the Landscape

Placing perennials properly in landscapes is both an art and science– the art involves some key design principles, while the science involves matching the plant needs with the site or habitat.  Photos of flower combinations will be used to illustrate the principles and provide design ideas.  Various types of habitats, varying with soil and sun, will be covered with examples of some new and underutilized perennials for each.

Perennials and Cold Hardiness

Using what we have learned when selling to your customers For over 30 years we’ve been studying perennial hardiness (Zones 3 & 4) — many different plants as well as the factors that influence their survival.

This presentation will provide you with the key factors to consider towards best winter survival, whether plants are in containers, in the field, or in landscapes. In particular, we’ll mention recent field studies in our cold Vermont climate with coralbells, coneflowers, and ornamental grasses