The Sustainable Horticulture Certificate program consists of a series of core courses that includes Basic and Advanced Horticulture, Soils, Diagnosing Plant Problems and Botany for Gardeners. These classes teach best management practices necessary for gardening with minimal ecological impact. Electives further enhance students’ understanding of sustainable practices that help protect soil health, water resources, air quality and land usage, and result in the creation of aesthetically pleasing gardens.

For more details about our programs, or to receive personalized class recommendations from our helpful staff, please feel free to contact us at edu@phipps.conservatory.org.

Tree and Shrub Maintenance | Walter Jarosh

Tuesdays: Jan. 23 and 30; Feb. 6, 13 and 20 (Snow date: Feb. 27) | 7 – 9 p.m.
Field day: Sat., Feb. 17 (Snow date: Sun., Feb. 18) | 10 a.m. – noon

$132 members | $152 nonmembers
Phipps Garden Center in Mellon Park

Objective: To understand the basics of woody plant care and to use this knowledge to ensure proper personal and professional selection and maintenance of trees and shrubs
Level: Beginner to intermediate
Prerequisite: None

Learn the basics of arboriculture as we cover tree biology, plant selection, site preparation, planting, pruning, fertilization, and diagnosis and control of insect and disease problems. Plus, attend a hands-on field session in Mellon Park. Sustainable Horticulture, Landscape and Garden Design, and Native Plant Landscapes Certificate elective; PCH 12.0 | LA CES 12.0

Garden Paths | Leslie Kaplan

Tues., Jan. 30 (Snow date: Feb. 6) | 7 – 9 p.m.

$22 members | $27 nonmembers
Phipps Garden Center in Mellon Park

Objective: To be able to design an attractive and functional garden path for your home
Level: Beginner to intermediate
Prerequisite: None

Every garden needs walking paths, but deciding what types to use and where to place them can be challenging. Consider both practical details and aesthetic choices in design, materials, construction and in-path planting to enhance beauty, access and the practical layout of your garden and yard. Sustainable Horticulture and Landscape and Garden Design Certificate elective; PCH 2.0 | LA CES 2.0

Winter Tree ID | Walter Jarosh

Sat., Jan. 27 (Snow date: Feb. 17) | 12:30 – 4 p.m.

$35 members | $40 nonmembers
Phipps Garden Center in Mellon Park

Objective: To be able to identify trees without their leaves
Level: Beginner to intermediate
Prerequisite: None

Discover differences and clues to help you identify trees by their shape, bark, twigs and buds. Plus, learn how to understand samples and use a key. The class will take place both outdoors and in the classroom. Dress warmly, and bring a 10x hand lens or magnifying glass if you have one. Sustainable Horticulture, Landscape and Garden Design, and Native Plant Landscapes Certificate elective; PCH 3.5 | LA CES 3.5

Seed Starting | Linda Kramer

Tuesdays: March 13 and 20 (Snow date: March 27) | 7 – 9 p.m.

$44 members | $49 nonmembers
Phipps Garden Center in Mellon Park

Objective: To be able to successfully start seeds at home
Level: Beginner
Prerequisite: None

Learn the steps to successfully start seeds and transplant them. Discuss heirloom and hybrid qualities, and gain the confidence to successfully start seeds at home for spring. Sustainable Horticulture and Native Plant Landscapes elective; PCH 3.5

History of Landscape Design | Joshua Beblo

Thursdays: Feb. 1, 8, 15 and 22; March 1 and 8 (Snow date: March 15) | 7 – 9 p.m.

$132 members | $152 nonmembers
Phipps Garden Center in Mellon Park

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; PCH 12.0

Plants for Winter Interest Walking Tour | Joshua Beblo

Sat., March 3 (Snow date: March 10) | 10 a.m. – noon

$22 members | $27 nonmembers
Meet at Frick Park Traffic Circle/Homewood Gate

Objective: To be able to use evergreens effectively in the winter garden
Level: Beginner to intermediate
Prerequisite: None

Landscape architecture instructor and passionate plantsman Joshua Beblo leads this walk in Point Breeze and introduces you to nearly 20 plants that can be used in the garden to provide winter interest. Dress for the weather. Sustainable Horticulture and Landscape and Garden Design Certificate elective; PCH 2.0 | LA CES 2.0

Soil Ecology | Walter Jarosh

Thursdays: March 22 and 29; April 5 and 12 | 7 – 9 p.m.

$88 members | $98 nonmembers
Phipps Garden Center in Mellon Park

Objective: To understand soil’s role in the garden and to learn to modify it for successful gardening
Level: Beginner to intermediate
Prerequisite: None

Healthy soil and the beneficial bacteria, fungi and other microorganisms it harbors provide the foundation for optimal plant growth and development. Learn about the physical properties of soils, best management practices, and soil tests and fertilizers. Sustainable Horticulture, Landscape and Garden Design, and Native Plant Landscapes Certificate core; PCH 8.0 | LA CES 8.0

Landscape Design I: Overview and Design Preparation | Michele Frey McCann

Mondays: April 16 and 30; May 7 | 7 – 9:30 p.m.
Field work: Sat., April 21 | 9 a.m. – noon

$200 members | $220 nonmembers
Phipps Garden Center in Mellon Park

Objective: To be able to complete a site inventory and analysis and create a conceptual diagram for a preselected site
Level: Beginner
Prerequisite: Landscape Graphics. Please note: completion of Landscape Graphics is required before enrolling in Landscape Design I.

Explore practical aspects of the landscape design process, including site documentation, client interviews and program development. Develop a site inventory and analysis and a conceptual diagram. Please bring the following tools to the first class: engineer’s scale, architect’s scale, straightedge triangles (45° and 30°-60°-90°), mechanical pencils (one soft lead, one hard lead), chisel point black marker, extra fine point black Sharpie® marker, small roll tracing paper (bum wad) and engineer’s paper. Space is limited to eight participants; early registration is encouraged. Landscape and Garden Design Certificate core course and Sustainable Horticulture Certificate elective; PCH 10.0 | LA CES 10.0

Principles for Natural Garden Design | Joshua Beblo

Tuesdays: April 10, 17 and 24 | 7 – 9 p.m.

$66 members | $76 nonmembers
Phipps Garden Center in Mellon Park

Objective: To begin to be able to design a garden based on the natural ecology of the site and incorporate appropriate native plants and wildlife needs into the landscape
Level: Intermediate to advanced
Prerequisite: None

Let the natural environment dictate the design of the landscape. Starting with a site analysis, become inspired by natural plant communities and structural elements that keep ecology in mind. With an emphasis on sustainability, incorporate native trees, shrubs and wildflowers into your landscapes. Native Plant Landscapes core course; Landscape and Garden Design Certificate and Sustainable Horticulture Certificate elective; PCH 6.0; LA CES 6.0

Great New Plants: 2018 | Leslie Kaplan

Tues., April 24 | 7 – 9 p.m.

$22 members | $27 nonmembers
Phipps Garden Center in Mellon Park

Objective: To be up to date on new plants coming to market this spring
Level: Beginner to intermediate
Prerequisite: None

A passionate horticulturist with an eye for exceptional horticulture, Leslie Kaplan will divulge which plants are new in horticulture. Be ready to be the first on your block with the hot new plants this year. Sustainable Horticulture and Landscape and Garden Design Certificate elective; PCH 2.0 | LA CES 2.0