Chicago Botanic Garden Winter 2019

Regenstein School | Adult Education 30 To register, visit chicagobotanic.org/education or call (847) 835-6801. The Orchid and the Pot Orchid success is in the roots. This class intro- duces you to orchid cultural requirements, fo- cusing on the root system and the importance of proper potting. Discover what makes a good potting mix, how to pot for different growing conditions, and how to troubleshoot poor growth, a lack of flowers, and dying leaves. A tour of the Orchid Show is included. Anne Nies, horticulture educator $32/$40 | Plant Science Lab, Regenstein Center Saturday, March 7, 1 – 3 p.m. Pruning Principles Using the correct technique for pruning is key to maintaining healthy plants. Learn the principles of pruning, including proper tool use, techniques for pruning trees and shrubs, and the best time to prune both evergreen and deciduous plants. We will also explore a variety of good tools for pruning. Tim Johnson, director of horticulture, Chicago Botanic Garden $32/$40 | Classroom 4, Learning Center Sunday, March 8, 1 – 3 p.m. Soils: Where Are Your Roots? Understanding soils is key to gardening suc- cess. Participate in an in-depth discussion of soils, including structure, fertilizers, pH balance, soil amendments, and water management. You will also explore proper horticultural techniques for a healthy soil ecosystem. Glenn Grosch, horticulturist and agronomist $42/$53 | Classroom 4, Learning Center Saturday, March 14, 9:30 a.m. – noon Success with Trees and Shrubs Learn about growing woody plants, both deciduous and evergreen. Whether you are a beginning or experienced home gardener, you can improve your skills to choose, plant, and place the perfect tree or shrub, as well as short- and long-term care techniques. Glenn Grosch, horticulturist and agronomist $42/$53 | Classroom 4, Learning Center Saturday, April 4, 9:30 a.m. – noon Spring Lawn Care for Homeowners Learn the basics of lawn care. Using the Gar- den’s holistic turf-management program as a model, explore how to cultivate a thriving lawn while lessening pesticide use. We will cover turf culture, mowing, aerating, watering, fertilizing and weeding, and insect and disease control. Please dress for the weather. Tom Fritz, plant health care specialist, Chicago Botanic Garden $32/$40 | Classroom 4, Learning Center Saturday, April 11, 9 – 11 a.m. Horticulture Certificate of Merit Program Certificate classes are open to all, as long as prerequisites have been met. For details, visit chicagobotanic.org/certificate. Certificate Programs Graduation If you will be completing your certificate pro- gram by the end of 2019, you must register for graduation no later than Tuesday, December 17, at chicagobotanic.org/certificate. Ceremony is Friday, January 24. New! Winter Tree and Shrub Trimming It is fun and simple to trim your trees and shrubs when their leaves are absent. Through demonstrations, discussion, and hands-on experience, learn the basics of tree physiology and how it is affected by trimming, proper practices of trimming during winter months, and the advantages of winter trimming for maximum health and plant performance. Please dress for the weather. The School’s CEUs=2 hours OPC elective Gilbert and Lesley Bruce Smith, Arborsmith $52/$65 | Linnaeus Room, Regenstein Center Saturday, January 18, 9 – 11 a.m. Plant Health 1 Learn to identify, diagnose, treat, and prevent some of the most common diseases, insects, animal pests, and environmental problems encountered by our region’s landscape industry. Topics include Integrated Pest Management (IPM), cultural care, basic entomology and pa- thology, pesticides and alternatives, and animal management. A supply list will be sent. PGL 1, PGL 2, and GDC requirement Chris Beiser, plant health manager, Nels Johnson Tree Experts $287/$359 | Classroom 6, Learning Center 6 Tuesdays & 6 Thursdays, January 21 – February 27, 6 – 8 p.m. (snow date March 5) Gardening Techniques: Session B Learn tips and techniques used by professional gardeners through a combination of lecture and hands-on activities. Acquire solid garden- ing skills and determine best management practices. Topics range from general grounds maintenance, winterization, plantings, and other horticultural practices. This is a pre-pro- fessional class designed for students entering the green industry. A supply list will be sent. Dress for the weather. PGL 1, PGL 2, GDC requirement TBD $249/$312 | Classroom 4, Learning Center 6 Saturdays, January 25 – February 29, 7:30 – 10:30 a.m. Trees and Shrubs with Winter Interest Attractive and interesting landscapes are achievable during the long winter season. Colorful fruits and bark stand out in the gray skies, as do the branching habit and shape of plants. Learn about the trees and shrubs that add interesting form, color, and texture to the winter landscape. Dress for the weather. The School’s CEUs=2 hours OPC elective Mark Zampardo, Ph.D., horticulture educator $52/$65 | Classroom 5, Learning Center Thursday, February 13, 9 – 11 a.m. New! Poisonous Mushrooms of Illinois Along with the many edible mushrooms dotting our Illinois landscape, our woodlands, flood plains, ravine communities, and even our own backyards often contain poison- ous mushrooms. Get introduced not only to mushrooms that can make you very sick and those that are deadly, but also to the various toxins these mushrooms contain. The School’s CEUs=2 hours OPC elective Moira O’Keefe, wild mushroom expert $52/$65 | Classroom 4, Learning Center Saturday, February 22, 11 a.m. – 1 p.m. Junipers, Arborvitaes, and Yews These stalwarts of the landscape are hardy, easy to care for, and with proper siting and selection, can remain attractive for many years. Learn about the many options available from this great group of plants. Dress for the weath- er. The School’s CEUs=2 hours OPC elective Mark Zampardo, Ph.D., horticulture educator $52/$65 | Classroom 4, Learning Center Tuesday, March 3, 6 – 8 p.m.