Horticulture Classes

Develop the vital skills needed to protect and manage landscapes, maintain healthy trees, design attractive gardens, and produce landscape plants. Our horticulture classes cater to anyone—from beginners to advanced horticulturists—with an emphasis on real world skill-building. Enroll in a single class or pursue a Horticulture Certificate.

Click here for an overview of the certificate program.


February

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. Through lectures more...
253HRT301BO 02/08 Sa 10:30am-12:30pm Bulpitt
ONLINE

This user-friendly intro course surveys the major plant groups-flowering plants, conifers, ferns, and bryophytes-focusing on their form and structure. Become botanically literate and gain practical experience in dissecting and analyzing plant structures.
253HRT300GO 02/12 We 6:00pm-8:00pm O'Brien
ONLINE

Renowned naturalistic garden designer, Jacqueline van der Kloet, has mastered a casual, magical technique where bulbs emerge playfully among other plants, as if dancing freely among the perennials and grasses, creating a painterly scene. Van der Kloet has been commissioned more...
253GAR801C 02/13 Th 11:00am-12:00pm van der Kloet
NYBG

Through classwork and hands-on practice, develop pruning tools and techniques to help shrubs, conifers, broadleaves, evergreens, and deciduous plants thrive. Explore how woody plant structure and physiology influence pruning. Learn how to create and maintain hedges and explore authentic pollarding more...
253HRT321C 02/18 Tu 10:00am-1:00pm Logan
NYBG

Become familiar with the cultural requirements, identifying features, and uses of native and non-native broadleaved evergreens, and incorporate them into both naturalistic and formal landscape settings. Major plant groups studied include Ilex, Rhododendron, Buxus, and evergreen groundcovers.
253HRT332B 02/21 Fr 10:30am-12:45pm Simeone
NYBG

Learn principles and techniques of plant propagation by seed and cuttings. Explore basic sexual and asexual propagation, focusing on fruit development, seedling production, root initiation, stem and leaf cuttings, and layering.
253HRT411A 02/24 Mo 5:30pm-8:30pm Weinstein
NYBG

This user-friendly intro course surveys the major plant groups-flowering plants, conifers, ferns, and bryophytes-focusing on their form and structure. Become botanically literate and gain practical experience in dissecting and analyzing plant structures.
253HRT300EO 02/26 We 6:00pm-8:00pm Simeone
ONLINE

March

Learn principles and techniques of plant propagation by seed and cuttings. Explore basic sexual and asexual propagation, focusing on fruit development, seedling production, root initiation, stem and leaf cuttings, and layering.
253HRT411B 03/01 Sa 10:00am-1:00pm Ruggiero
NYBG

Soil compaction, construction damage, and land development practices can lead to tree decline and early tree mortality. Examine the biology of trees, and learn how they respond to changes in the urban environment. Explore techniques for assessing and preserving tree more...
253HRT426 03/01 Sa 11:00am-2:00pm Finley
NYBG

Learn to prune like NYBG! In this two-week course, our plant experts will guide you through essential pruning techniques for woody plants like small trees and shrubs, and more.
253PLT140 03/05   Finley
ONLINE-FLEX

Explore the basics of successful, environmentally friendly gardening. Topics include soils and their improvement, seed sowing, vegetative propagation, planting, pruning, watering, weeding, mulching, and disease and pest control. This course is also required for the Therapeutic Horticulture Certificate.
253GAR301DO 03/07 Fr 10:00am-12:00pm Marsh
ONLINE

Graphics are essential in developing and communicating your ideas. Practice various graphic techniques on a range of materials and equipment and learn how to organize and render landscape plans on paper for optimal presentation to clients. Homework is required.
253LAN311DO 03/08 Sa 1:30pm-4:30pm Miller
ONLINE

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. more...
253HRT342 03/11 Tu 1:30pm-3:30pm McDowell
NYBG

This user-friendly intro course surveys the major plant groups-flowering plants, conifers, ferns, and bryophytes-focusing on their form and structure. Become botanically literate and gain practical experience in dissecting and analyzing plant structures.
253HRT300DO 03/12 We 10:30am-12:30pm Day
ONLINE

Design, plant, and harvest a cutting garden that's productive throughout the seasons. You'll get hands-on practice starting seeds to ensure you always have something fresh to cut. We'll cover traditional and unexpected annual and perennial cut flower species and varieties more...
253HRT142BO 03/17 Mo 6:00pm-8:00pm Breyer
ONLINE

This course is designed for horticulturists who are responsible for maintaining outdoor landscapes. We will cover how to calculate area to help estimate plant and soil needs, apply rates for fertilizers, and calculate amounts of soil amendments.
253HRT356O 03/20 Th 5:00pm-7:00pm Weinstein
ONLINE

Examine sustainable techniques for managing and maintaining commercial and residential landscapes. Develop programs that reduce adverse effects on the environment, including alternative approaches to conventional lawn management.
253HRT443 03/20 Th 4:30pm-7:30pm Laswell
NYBG

Explore theories, traditions, and principles that have shaped the design of landscapes from antiquity to the present, through visual presentations, assigned readings, projects, and classroom discussion.
253LAN301DO 03/24 Mo 6:15pm-9:15pm Bunnell
ONLINE

Go beyond basic soil chemistry and examine how a soil's pH affects what nutrients are available to plants. Explore the ionic exchange capacities of soil, the complex nitrogen cycle, and the effects of composted soil amendments and fertilizers. Discover how more...
253HRT302 03/26 We 11:00am-2:00pm Lozefski
NYBG

Explore the basics of successful, environmentally friendly gardening. Topics include soils and their improvement, seed sowing, vegetative propagation, planting, pruning, watering, weeding, mulching, and disease and pest control. This course is also required for the Therapeutic Horticulture Certificate.
253GAR301E 03/27 Th 10:00am-12:00pm Ruggiero
NYBG

April

Choose the right plant for the right place, based on site-specific design and maintenance criteria. Learn landscape values such as size, texture, color, and flowering and fruiting seasons. Review trees, shrubs, groundcovers, annuals, and perennials suitable for this region.
254HRT358B 04/19 Sa 10:00am-12:40pm D'Antonio
NYBG