Plant Science

Regular and Co-op

banner stating "plant science"

Understand the importance of plant structure, physiology and functioning to enhance the agriculture, pharmaceutical and biotechnology industries.

Plant science is the study of the intricacies of plant diversity, growth and development, plant-environment interactions, advances in molecular biology, and the wide variety of economic uses for plants.

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What's Unique?


The Honours B.Sc. major in Plant Science is an exciting, interdisciplinary program offered through the Departments of Plant Agriculture, Integrative Biology, Molecular and Cellular Biology and the School of Environmental Sciences. You will receive a solid foundation in plant science through courses in anatomy, genetics, physiology and systematics, from which you can expand into the areas of applied plant science, botany, plant biotechnology and/or plant environmental science.

Check-out What Are Our Students Doing at the University of Guelph:

Program Details 

Explore the intricacies of plants through the study of their diversity, growth, development, environmental interactions, and various economic uses. Gain knowledge of advances in molecular biology, plant ecology, systematics, physiology, botany, genetics, agriculture, ethnobotany and biotechnology. Opportunities exist for hands-on experience in labs, field courses and individual research projects, and access to an active herbarium, special growth facilities and a renowned arboretum. Become a leader in the field of plant science and contribute to society's need for the efficient production of healthy foods and improved environmental management.

  • Plant Growth and Development
  • Metabolism in Whole life of Plants
  • Plant Pathology
  • Plant Genetics

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Admission Requirements

~80-83% average 

  • 12U English
  • Advanced Functions
  • 2 courses from: 12U Biology, Chemistry, Physics
  • 2 additional 12U or M courses

All three sciences are recommended

*Please note that admission cut-offs stated above is an approximate based on previous years applicant pool. This cut-off range will vary from year-to-year and can be higher or lower based on the applicant pool. Meeting the minimum average does not guarantee an offer of admission. Admissions averages are calculated using the six required courses. 


You can expect to learn how to:

  • Demonstrate knowledge in mechanisms related to the molecular, biochemical, physiological, organismal and ecological levels of plant organization from systems-based approaches
  • Demonstrate knowledge in the fundamental vegetative, reproductive and genetic attributes of plants
  • Demonstrate knowledge in the ecological interaction of plants with biotic and abiotic factors in natural and agricultural systems
  • Demonstrate knowledge in plant diversity and genetic variability and their relationship to evolution, speciation and adaptation
  • Demonstrate knowledge in the role of plants and their improvement to impact global, cultural and societal issues

Career Options

With Faculty pooled from one of the largest concentrations of plant scientists in Canada, this major will provide you with the qualifications required for further study at the graduate level or a career in agriculture, biotechnology, environmental policy or ecology.


Co-Op Options

Students enrolled in a major with co-op, will complete COOP*1100 either in the winter of first year or the fall of second year. This course prepares students for their work terms by helping them develop professional attitudes and skills expected in the workplace as well as helping to build a toolkit of resume and cover letter writing as well as interview skills. 


Where our Alumni are working:

Associate Editor at Canadian Journal of Plant Science   |  Agriculture and Argi-Food Canada

Plant Phenomics, Plant Pathology

Crop and Campaign Manager  |  Bayer Crop Science

Research Technician |  Syngenta

Policy Analyst | Natural Resources Canada


Ontario Agriculture College and College of Biological Science

Plant Science is an interdisciplinary major suppoted by both the Ontario Agriculture College (OAC) and the College of Biological Science (CBS)?

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Explore CBS

Research & Faculty

Find out more about the research and faculty involved in the Plant Science major.

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Course List

A complete listing of all courses required for this major can be found in the Schedule of Studies located in the undergraduate calendar.

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Questions about Admissions?  

General Inquiries 

Phone: (+1) 519-821-2130 
Office Hours: Monday - Friday: 8:30 AM to 4:30 PM

B.Sc. Specific Questions 
Office Hours: Monday – Friday 8:30 AM – 4:30 PM (closed over lunch)