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Jonathan Lehrer - Farmingdale State College. Farmingdale, NY, US

Jonathan Lehrer Jonathan Lehrer

Department Chair and Assistant Professor, Department of Urban Horticulture and Design | Farmingdale State College

Farmingdale, NY, UNITED STATES

Professor Jonathan Lehrer is a native Long Islander whose passion for the natural world extends from early childhood.

Biography

Currently assistant professor and chairman in the Department of Urban Horticulture and Design at Farmingdale State College, Dr. Lehrer returned home eight years ago after completing his doctoral degree at the University of Connecticut. He currently teaches courses in woody plants, native plants, and indoor horticulture. He is active with several groups that address the invasive plant issue, serves on the Long Island Gold Medal Plant committee, and consults privately on horticultural matters. Dr. Lehrer is also a plant hobbyist with special interests in variegated cultivars and traditional Japanese collector plants.

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Areas of Expertise (6)

Urban Horticulture Woody Plants Native Plants Indoor Horticulture Invasive Plant Issue Plant Cultivars

Industry Expertise (4)

Education/Learning Landscaping Floriculture and Horticulture Research

Education (3)

University of Connecticut: PhD, Plant Science 2007

University of Connecticut: MS, Plant Science 2002

Cornell University: BS, Biology 1998

Affiliations (3)

  • L.I. Nursery and Landscape Association
  • L.I. Gold Medal Plant Committee
  • Suffolk County Invasive Species Advisory Board

Languages (1)

  • English

Media Appearances (2)

Alternatives to Invasive Trees & Plants

The Organic View Radio Show with June Stoyer  radio

2014-11-03

Alternatives to Invasive Trees & Plants

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Beauty in the eye of the beholder for LI gardeners "going native"

Newsday  print

2015-08-15

Growing awareness of environmental threats to species like the monarch butterfly is fueling a nascent movement on Long Island that uses native plants to support their survival, restore lost habitat -- and redefine what a garden can be.

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Event Appearances (6)

Not just aggressive, they are Invasive: Invasive plant update

LINLA Fall Education Symposium  Oyster Bay, NY

2013-09-20

Landscaping for the Birds

2015 Spring/Summer Seminar Series  Martin Viette Nurseries

2015-05-02

Long Island Hydrangeas Under Fire

Fireside Chat Program   Clark Botanic Garden

2015-03-01

Long Island Invasive Plant Alternatives

Lecture series  Second District Federated Garden Clubs of New York State

2014-10-17

Native Oaks: Linking Natural History and Horticulture

Native Flora of Long Island: Satisfying Biodiversity in a Modern World   Long Island, NY

2014-09-13

NYS Invasive Plant List/Alternatives to Invasives

22nd Annual NYS ReLeaf Conference  Hofstra University, Hempstead, NY

2014-07-18

Sample Talks (2)

Hydrangeas for Long Island

Hydrangeas are some of the most popular landscape shrubs in the tri-state area, but their cultivation is plagued by confusion and misunderstanding. This lecture presents an overview of common cultivated hydrangea, problems often encountered, and strategies that may be implemented to succeed in residential and commercial settings.

“Invasive Plants”: This topic is of contemporary importance due to the wide-reaching implications of invasive plants, and active legislation at the local and state level. This lecture presents an overview of the issue through a discussion of definitions and scientific concepts. The audience gains an appreciation for the scope of the issue and the consequences. Horticultural solutions are also explored.

Alternatives to Invasive Plants

This talk offers an in-depth exploration of specific alternative plants that may be employed in landscapes to replace species deemed invasive and/or banned by legislation. To begin, a brief overview of the invasive plant issue is given. The bulk of the lecture details plant selections that offer comparable ornamental and cultural traits to important invasive species without the risk of ecological damage.

Style

Availability

  • Keynote
  • Moderator
  • Panelist
  • Workshop Leader
  • Corporate Training

Research Focus (1)

Cultivar Invasiveness Assessment Protocol

2012-01-01

Chairs a committee (2012-present) representing diverse constituencies to develop the “Cultivar Invasiveness Assessment Protocol,” a unique decision-making tool that evaluates cultivars (unique varieties) of invasive plant species using rigorous science-based standards. If these plant varieties meet stringent standards they may be declared exempt from legislative prohibitions placed on their sale by Nassau/Suffolk counties and New York State. This protocol has been accepted by the NYS DEC and in spring 2015 the first set of exempt cultivars was published in the state register.

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Research Grants (3)

Implementation of a Permanent Plant Labeling System Within the Teaching Gardens at Farmingdale State College to Enrich Horticulture Student Education and Green Industry Outreach Efforts

Long Island Nursery and Landscape Association  $800

2011-09-01

Implementation of a Permanent Plant Labeling System Within the Teaching Gardens at Farmingdale State College to Enrich Horticulture Student Education and Green Industry Outreach Efforts

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Thermal Plant Label Printer Facilitates Horticulture Education at Farmingdale State College Via Marketing and Development Opportunities

Long Island Nursery and Landscape Association  $1618

2015-05-01

Thermal Plant Label Printer Facilitates Horticulture Education at Farmingdale State College Via Marketing and Development Opportunities

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Enrichment of Horticulture Education through Student Involvement in Restoration of the Teaching Gardens Pinetum

Farmingdale State College $2,500

2011-06-01

Enrichment of Horticulture Education through Student Involvement in Restoration of the Teaching Gardens Pinetum

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Published Articles (3)

Layers of Intrigue: Physocarpus and Powdery Mildew American Nurseryman

2012-01-01

Layers of Intrigue: Physocarpus and Powdery Mildew

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From Cast-iron to Gilded Gold: The Introduction of New Cultivars Heralds an Aspidistra Renaissance, with selections that offer spots, stripes, frosts and gorgeous green American Nurseryman

2011-01-01

From Cast-iron to Gilded Gold: The Introduction of New Cultivars Heralds an Aspidistra Renaissance, with selections that offer spots, stripes, frosts and gorgeous green

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Shedding New Light on Aucuba American Nurseryman

2009-01-01

Shedding New Light on Aucuba

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Courses (5)

HOR 211 - Woody Plants I

The Woody Plants courses give a picture primarily of the woody plants grown in nurseries for landscape purposes, and secondly of those found in arboretums, woodlands, and fields of Northeastern United States. Emphasis is on identification, culture, uses, flowers, and fruits, and ecological relationships. Several of the evergreens, broad and narrow leaf, as well as some of the deciduous trees and shrubs will be covered in this first study.

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HOR 212 - Woody Plants II

A continuation of Woody Plants I covering additional evergreens, broad and narrow leaf, as well as deciduous plants, trees, shrubs, vines and ground covers.

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HOR 218 - Indoor Plants

A study of various plants that are suitable for indoor culture. Emphasis will be placed on identification, propagation, cultural requirements, ecological and aesthetic values.

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HOR 311 - Woody Plants III:Advanced Topics

This course supplements topics addressed in the core woody plant curriculum and expands in new directions. Contemporary topics will be discussed such as native vs. non-native plants, invasive plants and alternatives, xeriscaping and sustainable plant selection. It is hoped that students will hone their ability to select appropriate woody plant material for challenging landscape situations and become aware of contemporary issues in horticulture. Guest speakers, outdoor laboratory exercises and field trips will be organized to complement classroom instruction.

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HOR 312 - Selecting and Designing with Native Plants

The appropriate selection and use of native plants (herbaceous and woody species) balances aesthetic demands with environmental concerns and the needs of local flora and fauna. This course will first explore the meaning of "native" and the scientific basis for utilizing species indigenous to the New York City metropolitan area. We will then address plant selection in the context of specialized ecological communities and the design of landscapes with native plant material. Classroom instruction will be supplemented with visits by experts and trips to sites that illustrate course concepts.

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