NOTE: All member and nonmember tickets must be reserved in advance, and masks are strongly recommended for all guests and required for unvaccinated guests ages 2 and up. Learn more about how you can join us!

The Sustainable Horticulture, Landscape and Garden Design, and Native Plant Landscapes Certificate programs consist of courses that teach best management practices necessary for gardening with minimal ecological impact, design priciples and techniques for creating environmentally responsible landscapes, and essential knowledge on how to best use native plants for habitat and ecosystem preservation.

For more details about our programs, or to receive personalized class recommendations from our helpful staff, please feel free to contact us at

Confirmations will be emailed the day before each class, including a Zoom link. Please check your spam/junk mail folder, and if you have not received the link, email

Virtual classes are recorded and made available to all registered participants for one month after the program.

All times are Eastern Time Zone.

Current Classes

Classes Currently in Progress

  • Landscape Graphics | Michele McCann | Mondays: Oct. 4, 11, 18, 25, Nov. 1 and 8 | 7 – 9:30 p.m.

Detailed Listings

History of Landscape Design | Joshua Beblo

Mondays: Nov. 15, 22 and 29, Dec. 6, 13 and 20 | 7 – 9 p.m. Eastern

$132 members | $152 nonmembers

Presented as a live webinar through Zoom

Objective: To be able to integrate design principles with architectural styles based on landscape history knowledge

Level: Beginner to intermediate

Prerequisite: None

A garden’s form and the sense of place it creates can only fully be understood by studying the culture and individuals who brought it into existence. Learn to apply knowledge of garden history in evaluating today’s materials and spaces. Landscape and Garden Design Certificate core course; Sustainable Horticulture Certificate elective. This course has been approved for 6.0 CEUs by LACES.

Virtual Native Plant and Sustainability Conference

Thursday, January 27, 2022 | 1 – 4 p.m.

Early registration (ends Jan. 7):
Members: $40 | Non-members: $45
Late registration:
Members: $50 | Non-members: $55
Virtual program through Zoom

1 – 1:15 p.m. - Introduction and Welcome

1:15 – 1:45 p.m. - Certified Organic Ornamentals:  The how and why of a new approach to tree production, Steve Black, Owner Raemelton Farm 

In 2015 Raemelton Farm became the first and only nursery in the United States to sell USDA Certified ORGANIC B&B trees. The Organic market is no longer a hippie thing; consumers now put a value on the way in which plants are produced. In addition to a more valuable end product, Organic production also protects and sustains the farm ecosystem. Healthier soil, cleaner water, more beneficial insects (and animals) all make for continuous improvement in tree production and plant health. The presentation will cover Raemelton’s innovative techniques for pest and weed control, soil conservation, and farm management.  

Steve Black is Owner and Operator of Raemelton Farm, Adamstown Md. Raemelton Farm produces landscape-ready B&B trees and shrubs for the Mid-Atlantic and Northeastern markets. Steve started the farm in 2004 and grows nearly 350 different species and cultivars, including many USDA Certified Organic landscape trees. In addition to farming, Steve is Past-President of the Maryland Nursery, Landscape, Greenhouse Association (MNLGA), he has served on two USDA Specialty Crop Research Initiative Advisory Boards, and is a member of the board of the University of Maryland’s Harry R. Hughes Center for Agro-Ecology.

1:50 – 2:20 p.m. - Spotlight on Native Plants, Jess Horenstein, Phipps Outdoor Foreman

We will spotlight 10 native plants from our collection of Phipps recommended Sustainable Plants. Learn how they grow and where to fit them into your landscape. Then you can pre-order with our Native Plant Pre-Sale and pick up just in time for planting in the spring. 

Jess Horenstein is the Outdoor Foreman at Phipps. She worked for several years for a private landscaper before getting hired at Phipps. Before that she worked for the Audubon Society and several zoological institutions in avian care before getting interested in horticulture. She is an avid birder and native plant enthusiast. 

2:25 – 2:55 p.m. - Sustainable Garden Awards Winners, Juliette Olshock, Phipps Sustainable Landcare

The Sustainable Garden Awards started in 2021 with the goal of inspiring Western Pennsylvania residents to design and maintain gardens that are both environmentally friendly and beautiful. With so many wonderful gardens to choose from this year, it was a challenge to decide on the winners. We are happy to announce the champions from the following categories: Native Plantings and Wildlife Gardens, Micro-Gardens, Abundant Edible Gardens and Gardens for Personal Retreat (large and small!). 

Juliette Olshock is the Sustainable Landcare Program Coordinator for Phipps Conservatory and Botanical Gardens, where she organizes trainings and educational opportunities for local landcare professionals and homeowners focusing on sustainable landcare principles and practices. Juliette enjoys growing a variety of plants, learning about local wildlife and creating a backyard oasis at her home in Hazelwood.  

3 – 4 p.m. – The Fundamentals of Garden Layers, Benjamin Vogt, Owner Monarch Gardens 

When designing any garden, there is an opportunity to eschew the norms of beauty as the only priority. With careful planning, we can create a space that works in harmony with nature, expands biodiversity, builds healthy soil, and nurtures pollinators and other wildlife. Let’s learn from natural plant communities to increase ecosystem function and climate resilience at home in our designed gardens. From the fundamentals of seasonal and yearly plant succession, to using plant reproduction and sociability to fill ecological niches, the right native plant communities make all the difference for beautiful gardens both wildlife and people crave. 

Benjamin Vogt owns Monarch Gardens, a prairie-inspired design firm. His landscapes have been featured in Garden Design, Fine Gardening, and The American Gardener. Benjamin speaks nationally on a variety of topics and is the author of A New Garden Ethic: Cultivating Defiant Compassion for an Uncertain Future and the forthcoming Prairie Up: An Introduction to Natural Garden Design (fall 2022).

Landscape Graphics | Michele McCann

Mondays: Oct. 4, 11, 18, 25, Nov. 1 and 8 | 7 – 9:30 p.m.

$225 members | $245 nonmembers

Phipps Garden Center in Mellon Park

Objective: To be able to use basic freehand and drafting techniques to produce legible drawings of landscapes

Level: Beginner to intermediate

Prerequisite: This course is the prerequisite to Landscape Design I – IV

In the field, designers rely on graphics to develop and communicate ideas. Working with pencil, practice freehand and mechanical drawing techniques while learning about lettering, sheet layout, title blocks, concept drawing, colored renderings and presentation plan graphics. Landscape and Garden Design Certificate core course

COVID note: Class sizes will be limited to allow for adequate social distancing during class. Masks are required for all guests attending in-person classes. Phipps closely monitors changing guidelines and may need to make adjustments to this class or our requirements to ensure a safe student experience.