Horticulture Classes

Develop the vital skills needed to protect and manage landscapes, maintain healthy trees, design attractive gardens, and produce landscape plants. Many horticulture students start their own businesses or pursue rewarding careers in a breadth of areas, including landscaping companies, nurseries and garden centers, public parks, botanical gardens, and private estates. Enroll in a single class or pursue a Horticulture Certificate.

Location Day/Night Instructor Sort Keywords  
Classes

September
Learn about common diseases of woody and herbaceous ornamentals and turfgrass caused by bacteria, fungi, nematodes, viruses, and abiotic factors and the cultural, biological, and least toxic strategies for their control. Discuss diagnoses of plant problems, including identification of disease– more...
09/06 We 04:30pm-07:30pm Hall
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
09/09 Sa 10:00am-01:20pm Alvarez
MDTN
This course is designed for horticulturists and gardeners who are familiar with the basic culture of perennials. Learn the identifying characteristics, classification, scientific and common names, and landscape uses of approximately 51 summer- and fall-blooming native and non-native perennials. Please more...
09/09 Sa 10:00am-01:45pm Hagen
NYBG
Learn about common diseases of woody and herbaceous ornamentals and turfgrass caused by bacteria, fungi, nematodes, viruses, and abiotic factors and the cultural, biological, and least toxic strategies for their control. Discuss diagnoses of plant problems, including identification of disease– more...
09/09 Sa 10:00am-01:00pm Kenney
NYBG
Learn the fundamental principles of design in this studio-oriented course, including site analysis, schematic and finished planting plans, and various garden styles. Study the effective use of color when selecting specific garden plants and learn various color schemes such as more...
09/09 Sa 10:00am-12:50pm McKillop
NYBG
This course is designed for horticulturists and gardeners who are familiar with the basic culture of perennials. Learn the identifying characteristics, classification, scientific and common names, and landscape uses of approximately 51 summer- and fall-blooming native and non-native perennials. Please more...
09/12 Tu 10:00am-01:00pm Ruggiero
NYBG
  09/13 We 10:00am-01:00pm Brands
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates. Learn the principles and techniques of plant propagation by seed and cuttings. Explore the basics of sexual and asexual propagation, with attention to fruit development, seedling more...
09/18 Mo 05:45pm-08:45pm Weinstein
NYBG
  09/19 Tu 05:45pm-08:45pm Storrs
NYBG
Prepare for the Core (Basic) and Category 3 (Ornamentals and Turf) exams that New York State Department of Environmental Conservation require of all pesticide applicators. We'll cover the handling, use, storage, and application of pesticides; safety and environmental considerations; and more...
09/26 Tu 04:15pm-08:45pm Gabel
NYBG
This course is also required for the Gardening Certificate and Landscape Design Certificate. Examine the use of plants in the landscape with an emphasis on choosing the right plant for the right place, based on site-specific design and more...
09/26 Tu 06:15pm-08:50pm Ruggiero
NYBG
Learn the basic techniques of landscape gardening, with an emphasis on ecologically appropriate practices. Topics include soil preparation, efficient water and fertilization practices, planting and transplanting, cultivation techniques, and maintaining healthy plants. Wear sturdy shoes, and come prepared to work more...
09/27 We 04:30pm-07:30pm Weinstein
NYBG
This course is also required for the Landscape Design Certificate.
Explore how to identify and use major groups of shade trees and shrubs native to and hardy in our region in the landscape, including Acer, Quercus, and Viburnum, which more...
09/27 We 04:30pm-06:30pm Ruggiero
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
09/28 Th 02:00pm-04:40pm Grossman
NYBG
  09/28 Th 10:00am-12:20pm Paltseva
NYBG
This course is also required for the Gardening Certificate and Landscape Design Certificate. Examine the use of plants in the landscape with an emphasis on choosing the right plant for the right place, based on site-specific design and more...
09/29 Fr 10:00am-12:40pm D'Antonio
NYBG
October
Learn native and non—native broadleaved evergreens; become familiar with their cultural requirements, identification features, and landscape uses. Learn how to incorporate this important group of plants into both naturalistic and formal landscape settings. Major plant groups studied include Ilex, Rhododendron, more...
10/03 Tu 04:30pm-06:30pm Curtis
NYBG
Learn the basic principles and best practices of greenhouse and nursery construction and design, and commercial greenhouse and field plant production. Understand how to manage a commercial growing operation, including site selection, planning and layout, and production methods of greenhouse more...
10/03 Tu 04:30pm-07:05pm Hachadourian
NYBG
Learn native and non—native broadleaved evergreens; become familiar with their cultural requirements, identification features, and landscape uses. Learn how to incorporate this important group of plants into both naturalistic and formal landscape settings. Major plant groups studied include Ilex, Rhododendron, more...
10/04 We 10:00am-12:15pm Grossman
NYBG
Examine the most important factors in the management and maintenance of commercial and residential landscapes using sustainable techniques. Learn to develop programs that reduce adverse effects on the environment, including alternative approaches to conventional lawn management. Focus on how to more...
10/04 We 01:30pm-04:00pm Morrell
NYBG
Learn how to identify and manage the common turf and landscape weeds found in residential and commercial sites. Examine a variety of weed control methods, including herbicides and non-chemical approaches. Study weed biology, biochemical pathways, and equipment calibration and care, more...
10/04 We 05:00pm-08:00pm Laswell
NYBG
Soil is a dynamic, living organism and the very foundation of sustainable horticulture and agriculture. This course focuses on the texture, structure, density, and color of different soils and the dynamic relationship that exists among soil, water, and plants. Learn more...
10/05 Th 02:00pm-05:00pm Lozefski
NYBG
A WILDER WORLD: The Plants and Places that Inspired Laura Ingalls Wilder
Marta McDowell in conversation with Thomas Rainer

Wednesday, October 11
11 am-12:30 pm | Ross Hall, NYBG

The inspiration for Laura Ingalls Wilder's beloved Little House books more...
10/11 We 11:00am-12:30pm McDowell
Rainer
NYBG
This course is also required for the Gardening Certificate and Landscape Design Certificate. Examine the use of plants in the landscape with an emphasis on choosing the right plant for the right place, based on site-specific design and more...
10/11 We 10:00am-12:40pm Ruggiero
NCNC
  10/12 Th 10:00am-12:40pm Ruggiero
NYBG
Saving the American Ash Summit
Friday, October 13, 10 am-12:30 pm | Ross Hall, NYBG

In this landmark summit, experts discuss the natural and cultural history of the magnificent Ash-and the deadly crisis it faces today.

more...
10/13 Fr 10:00am-12:30pm Knight, Ph.D.
Church
Atha
Rosenthal, M.S.
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
10/15 Su 02:00pm-04:40pm Grossman
NYBG
This course is also required for the Landscape Design Certificate.
Explore how to identify and use major groups of shade trees and shrubs native to and hardy in our region in the landscape, including Acer, Quercus, and Viburnum, which more...
10/15 Su 10:00am-01:00pm Ruggiero
NYBG
  10/15 Su 01:30pm-04:30pm Ruggiero
NYBG
This course is also required for the Gardening Certificate and Landscape Design Certificate. Examine the use of plants in the landscape with an emphasis on choosing the right plant for the right place, based on site-specific design and more...
10/15 Su 10:00am-12:40pm Grossman
NYBG
This course introduces students to the practical skills required for growing plants in greenhouses with an emphasis on integrated management techniques. Topics include structures and equipment, soils and other growing media, irrigation and fertilization practices, potting and repotting, and cultural more...
10/19 Th 04:30pm-07:30pm Gershberg
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
10/24 Tu 06:15pm-08:55pm Lincoff
MDTN

A succession of spectacular themed plantings—each framing a particular habitat—surrounds the site's grand 19th-century villa with 2,500 species of perennials and grasses, and 400 species of shrubs and trees. Hermannshof sets a new standard in naturalistic planting design that more...
10/25 We 06:00pm-08:00pm Schmidt
OFS
Through course study and hands-on pruning, you will learn the best tools, techniques, and timing to use when you prune to help shrubs, conifers, broadleaves, evergreens, and deciduous plants thrive. Explore how woody plant structure and physiology influence pruning. You'll more...
10/26 Th 10:00am-01:00pm Logan
NYBG
A leader in the New Perennial Movement, Schmidt conducts pioneering research into which specific perennial combinations thrive in a given habitat with minimum maintenance. In this special workshop, he compares the aesthetics and maintenance requirements of distinct perennial designs—from monocultural more...
10/26 Th 10:00am-01:00pm Schmidt
NYBG
November
Through course study and hands-on pruning, you will learn the best tools, techniques, and timing to use when you prune to help shrubs, conifers, broadleaves, evergreens, and deciduous plants thrive. Explore how woody plant structure and physiology influence pruning. You'll more...
11/01 We 02:00pm-05:00pm Logan
NYBG
Invasive Species Summit: Restoration and Long-Term Management, Co Presented with the Lower Hudson PRISM
Friday, November 3, 10 am-4 pm | Ross Hall, NYBG

Stiltgrass! Knotweed! Barberry! Porcelain-berry! A rogues gallery of invasive species is disrupting natural ecosystems and more...
11/03 Fr 10:00am-04:00pm Woodworth
King
O'Brien
Bushell
Arcate Schuler
NYBG
Prepare for the International Society of Arboriculture (ISA) Certified Arborist exam by reviewing each chapter in the ISA Arborists' Certification Study Guide. Participants are strongly advised to read the study guide in advance; copies are available for purchase at NYBG more...
11/04 Sa 09:00am-05:45pm Cahilly
Picciano
NYBG
Through course study and hands-on pruning, you will learn the best tools, techniques, and timing to use when you prune to help shrubs, conifers, broadleaves, evergreens, and deciduous plants thrive. Explore how woody plant structure and physiology influence pruning. You'll more...
11/07 Tu 10:00am-01:00pm Logan
NYBG
To register for the ISA exam, file an application and pay exam fees to the ISA at least 12 working days in advance of the exam date at isa-arbor.com, or by calling 217.355.9411. No exceptions, no walk-ins.
11/11 Sa 08:00am-12:00pm
NYBG
Learn native and non—native broadleaved evergreens; become familiar with their cultural requirements, identification features, and landscape uses. Learn how to incorporate this important group of plants into both naturalistic and formal landscape settings. Major plant groups studied include Ilex, Rhododendron, more...
11/18 Sa 10:00am-12:15pm Simeone
NYBG
December
WHAT PLANTS CAN TEACH US
A Talk with Robin Wall Kimmerer


Friday, December 1
10–11:30 am | Ross Hall, NYBG

As a botanist and member of the Citizen Potawatomi Nation, Robin Wall Kimmerer blends science's polished art of more...
12/01 Fr 10:00am-11:30am Wall Kimmerer
NYBG
Learn how to nurture the soil so it can sustain your plants. Go beyond basic soil chemistry, by understanding the ionic exchange capacities of soil, as well as how a soil's pH affects what nutrients are available to plants. Explore more...
12/06 We 02:00pm-04:40pm Lozefski
NYBG
January
Prepare for the Core (Basic) and Category 3 (Ornamentals and Turf) exams that New York State Department of Environmental Conservation require of all pesticide applicators. We'll cover the handling, use, storage, and application of pesticides; safety and environmental considerations; and more...
01/02 Tu 04:15pm-08:45pm Spencer
NYBG
Explore a holistic approach to keeping trees healthy and vigorous. Topics include planting and transplanting, pruning, fertilization, root system management, common problems, tree defenses, and lightning protection. Samples of tree problems, supplies, and tools are exhibited.

Required more...
01/03 We 06:00pm-08:00pm Cahilly
NYBG
Learn how to nurture the soil so it can sustain your plants. Go beyond basic soil chemistry, by understanding the ionic exchange capacities of soil, as well as how a soil's pH affects what nutrients are available to plants. Explore more...
01/04 Th 02:00pm-04:40pm Lozefski
NYBG
Learn the basic techniques of winter tree identification using dormant-season characteristics. Buds, bark, fruit, and growth habits on deciduous plants as well as unique aspects of conifers are taught. Specialized techniques and tools of the trade are discussed. Dress for more...
01/04 Th 01:00pm-03:00pm Logan
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
01/08 Mo 10:00am-12:40pm Grossman
NYBG
  01/08 Mo 06:15pm-08:55pm Lincoff
MDTN
Learn how to design, install, and maintain conventional, specialty drip, and micro-drip irrigation systems. Drip systems are useful for rooftop and terrace gardens, planters, raised beds, and many landscape and nursery production systems. We will cover basic hydraulics and review more...
01/09 Tu 10:00am-04:30pm Schilke
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
01/11 Th 10:00am-12:40pm Lincoff
NYBG
Discover the details of making a landscaping business work. Explore the type of business to create: design, installation, construction, maintenance, estimating or some combination. Learn about legal requirements, advertising, customer relations, and human resources. Discuss the monetary aspects: start-up costs, more...
01/12 Fr 10:00am-01:20pm Marsocci
NYBG
Through course study and hands-on pruning, you will learn the best tools, techniques, and timing to use when you prune to help shrubs, conifers, broadleaves, evergreens, and deciduous plants thrive. Explore how woody plant structure and physiology influence pruning. You'll more...
01/19 Fr 10:00am-01:00pm Logan
NYBG
Through lectures, laboratories, and field trips, learn how to work with plants that are difficult to propagate by seed or cuttings. Subjects include advanced seed propagation and techniques of grafting, budding, and micro-propagation. Learn about tissue culture at the Garden's more...
01/22 Mo 05:00pm-08:00pm Weinstein
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates. Learn the principles and techniques of plant propagation by seed and cuttings. Explore the basics of sexual and asexual propagation, with attention to fruit development, seedling more...
01/23 Tu 02:00pm-05:00pm Ruggiero
NYBG
Through lectures, laboratories, and field trips, learn how to work with plants that are difficult to propagate by seed or cuttings. Subjects include advanced seed propagation and techniques of grafting, budding, and micro-propagation. Learn about tissue culture at the Garden's more...
01/23 Tu 05:00pm-08:00pm Weinstein
NYBG
Situated on a bluff with awe-inspiring views of Puget Sound and Mt. Ranier, Dan Hinkley's Windcliff is both a superbly planted home garden and a botanical collection of wild specimens from more than 20 countries. The house is integrated seamlessly more...
01/25 Th 10:00am-11:30am Hinkley
NYBG
Soil is a dynamic, living organism and the very foundation of sustainable horticulture and agriculture. This course focuses on the texture, structure, density, and color of different soils and the dynamic relationship that exists among soil, water, and plants. Learn more...
01/25 Th 06:15pm-09:15pm Lozefski
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
01/27 Sa 10:00am-12:40pm Grossman
NYBG
Soil is a dynamic, living organism and the very foundation of sustainable horticulture and agriculture. This course focuses on the texture, structure, density, and color of different soils and the dynamic relationship that exists among soil, water, and plants. Learn more...
01/27 Sa 10:30am-01:30pm Paltseva
NYBG
Through course study and hands-on pruning, you will learn the best tools, techniques, and timing to use when you prune to help shrubs, conifers, broadleaves, evergreens, and deciduous plants thrive. Explore how woody plant structure and physiology influence pruning. You'll more...
01/27 Sa 01:00pm-04:00pm Bishop
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates. Learn the principles and techniques of plant propagation by seed and cuttings. Explore the basics of sexual and asexual propagation, with attention to fruit development, seedling more...
01/29 Mo 10:30am-01:30pm Ruggiero
NYBG
Soil is a dynamic, living organism and the very foundation of sustainable horticulture and agriculture. This course focuses on the texture, structure, density, and color of different soils and the dynamic relationship that exists among soil, water, and plants. Learn more...
01/31 We 10:00am-12:35pm Lozefski
NYBG
Learn the identification, classification, and landscape use of native and non-native conifers that thrive in the northeastern United States. Major plant groups studied include Chamaecyparis, Picea, and Pinus. Gain a working knowledge of the best species and cultivars of conifers more...
01/31 We 02:00pm-04:00pm Ruggiero
NYBG
February
This course introduces students to the practical skills required for growing plants in greenhouses with an emphasis on integrated management techniques. Topics include structures and equipment, soils and other growing media, irrigation and fertilization practices, potting and repotting, and cultural more...
02/01 Th 04:30pm-07:30pm Johnston
NYBG
The American Society for Horticultural Science (ASHS) offers a national credential validating the knowledge and skills of practitioners in the horticulture industry. The exam assesses performance in 35 tasks in seven major categories of horticultural practice. The application deadline is more...
02/03 Sa 09:00am-01:00pm
NYBG
This course is also required for the Gardening and Horticultural Therapy Certificates.
Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant more...
02/03 Sa 10:00am-12:40pm Satch
MDTN
Whether you are a budding arborist or weekend woodcutter, knowing how to use your chainsaw safely and maintain it properly are keys to success. This lecture-demonstration course by an ISA-certified arborist teaches you the basics of chainsaw use and care, more...
02/04 Su 09:00am-03:30pm Wolf
NYBG
Gain a basic understanding of the structure, growth, ecology, and evolution of insects and their role in human life. Learn how to collect, identify, classify, and preserve a wide variety of insects.

02/05 Mo 12:00pm-03:00pm Nguyen
NYBG
  02/07 We 12:00pm-03:00pm Nguyen
NYBG
This course is designed for horticulturists who maintain or direct the maintenance of outdoor landscapes. We'll review methods of calculating areas, application rates for fertilizers, and amounts of soil amendments during the first session, and analyze a set of homework more...
02/20 Tu 04:30pm-06:30pm Weinstein
NYBG
Learn the fundamental principles of design in this studio-oriented course, including site analysis, schematic and finished planting plans, and various garden styles. Study the effective use of color when selecting specific garden plants and learn various color schemes such as more...
02/21 We 06:15pm-09:05pm McKillop
NYBG
Allt-y-bela is a medieval renaissance tower house cradled in a valley between grazed and wooded hillsides. Here, Arne Maynard is creating a garden with a strong bond to its setting and a powerful sense of place, but one that's manageable more...
02/22 Th 10:00am-11:30am Maynard
NYBG
March
This course is also required for the Gardening Certificate and Landscape Design Certificate. Examine the use of plants in the landscape with an emphasis on choosing the right plant for the right place, based on site-specific design and more...
03/03 Sa 10:00am-12:40pm D'Antonio
NYBG
Learn the basic techniques of landscape gardening, with an emphasis on ecologically appropriate practices. Topics include soil preparation, efficient water and fertilization practices, planting and transplanting, cultivation techniques, and maintaining healthy plants. Wear sturdy shoes, and come prepared to work more...
03/13 Tu 04:30pm-07:30pm Weinstein
NYBG
Soil is a dynamic, living organism and the very foundation of sustainable horticulture and agriculture. This course focuses on the texture, structure, density, and color of different soils and the dynamic relationship that exists among soil, water, and plants. Learn more...
03/15 Th 10:30am-01:05pm Paltseva
NYBG
This course is designed for horticulturists, gardeners, or designers who want to learn to identify and classify familiar and unusual spring-, summer-, and autumn-flowering bulbs. We will also focus on understanding their biology. Prerequisite: Introduction to Plant Science

Materials
Assorted more...
03/15 Th 10:00am-12:00pm McDowell
NYBG
  03/15 Th 04:30pm-06:30pm Hagen
NYBG
Learn how to manage annual and perennial gardens using a variety of in-season and post-season maintenance practices. Topics include soil and weed management, watering, basic pest identification and control, and seasonal clean-up. Develop a management plan for a small perennial more...
03/17 Sa 10:00am-12:40pm Carsto
NYBG
HUMANITIES INSTITUTE SYMPOSIUM
March 22, 2018

With Peter Wohlleben, author of The Hidden Life of Trees In his best-selling book, heralded as groundbreaking by the New York Review of Books, forester Peter Wohlleben reveals startling new discoveries about how trees more...
03/22 Th 10:00am-12:00pm Wohllenben
NYBG
For Edwina von Gal, a garden is a collaboration with a piece of land about relinquishing, or establishing, just the right amount of control. Her property is a long, five-acre rectangle, with tidal wetland on one side, a former forest more...
03/29 Th 10:00am-11:30am von Gal
NYBG