Horticulture Knowledge Series

Presented by the Minnesota Landscape Arboretum and University of Minnesota Extension; Endorsed by MSHS, MNLA, and ASLA-MN

2022 Extension ProHort Core Course

Online class series at-your-own-pace starting January 6, 2022 

$550 Arb, MSHS, MNLA or ASLA-MN member
$590 non-member

Registration Deadline: January 3, 2022. 

The ProHort Core Course includes the same online classes offered for the Master Gardener Volunteer Core Course, developed and created by University of Minnesota Extension. Receive the same instruction at the same time as the Master Gardener Interns, without the Master Gardener obligations of volunteering or continuing education!

ProHort is for

  • Green industry professionals
  • Homeowners
  • Landowners
  • Hobbyists
  • Educators
  • ...Anyone looking for comprehensive horticulture foundation education!

14 modules
Course modules can be completed online, at-your-own-pace. There is a knowledge quiz at the end of each module:

  • Botany & Horticulture
  • Soils, Composting & Fertilizers
  • Herbaceous Plants
  • Woody Plants
  • Lawn Care
  • Weeds
  • Growing Vegetables
  • Growing Fruit
  • Indoor Plants
  • Integrated Pest Management
  • Plant Pathology
  • Plant Diagnostics
  • Entomology
  • Living with Wildlife

Watch a video about ProHort (1 min 30 sec)

Laura Vogel, teaching assistant for ProHort online

(Optional) Introductory Online Meet-&-Greet for Registered Students
Thursday, January 6, 2022, 5-6 p.m.

There will be an optional introductory meet-and-greet with Laura, your Course Coordinator, and fellow students! We will go over how to log in, share our burning questions we're hoping to learn from the course, and talk about live learning opportunities along the way. The meeting is optional and will be pre-recorded for those who cannot attend the live session. Please check your email: a link to this optional online meeting was sent in your class registration confirmation.


(Optional) Live-Online Facilitated Q&A Sessions
6:30-8:30 p.m. Thursdays, January 20 - April 21, 2022

You may optionally choose to virtually attend a Q&A session with your classmates and facilitators (and occasional guest experts) online to review the module content. Registered attendees will receive links to attend these sessions if desired.


How it works - onlineGardening tools and computer, photo StockAsso/Shutterstock 
Registered participants will receive course login information and details by email from your Course Teaching Assistant, Laura, on or before January 6, 2022. The online course is self-paced, and you will have access to complete all the online information, modules, and quizzes through December 2022. If you have questions or challenges with accessing the online course, Laura will be available to assist you (reference her contact information below)!


Reference manual is included
A hard-copy reference manual will be mailed to you prior to the course start date, approximately mid January. When you register for the course, be sure to complete the question box to enter your mailing address where we should send the manual. Or write -no manual- in that question box if you do not want a paper manual (help save a tree!).


Student learning on a computer, fizkes/shutterstockTime Commitment 
Expect an average of 40 - 60 hours to complete all the course material and quizzes.

Certificate of Completion 
Earn a Certificate of Completion by passing each of the 14 online knowledge quizzes that are available after each module. 

Cancellation policy 
A $5 cancellation fee is applicable to all cancellations prior to December 20, 2021. No refunds after December 20, 2021, but course registration is transferable through January 3, 2022 by contacting the Education Office at See cancellation policy.

Questions for the ProHort Course Coordinator?
Contact Laura Vogel at

Limit 250

Print ProHort flier

Endorsing Organizations of the ProHort Course

Minnesota State Horticulture Society

Minnesota Nursery & Landscape Association

American Society of Landscape Architects - MN Chapter

ASLA-MN logo

Become an Endorsing Organization!
Endorsing Organization Guidelines


Get an email notification when new Gardening & Horticulture classes are added!
Subscribe here (select Adult Classes > Gardening & Horticulture) to receive an email notification when new classes are added


Arboretum Education Office
Mon - Fri, 9 a.m. - 4:30 p.m.*
*We are temporarily working from home, we may return phone messages from a home phone 

Cancellations & Exchanges
Cancellation policy

The best chance of being enrolled in a sold out class is to add your name to the waitlist. Click the orange "waitlist" button next to the class and complete the form. There is no obligation to register if a spot opens. If the waitlist shows enough demand, additional sessions may be added.

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Use this feedback form to share anonymous feedback about educational programming with the Arboretum Education Team.

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