Ecampus Schedule of Classes - Spring 2025

Horticulture Course Schedule

Click on course title(s) below to access course description, syllabi, and textbook information for your course(s). Contact OSU Ecampus at 800-667-1465 (option 1) or ecampus.ess@oregonstate.edu for assistance.

Note: The Ecampus schedule of classes includes available courses for the current term and up to three future terms. Class offerings are continually updated and may be added, removed, or rescheduled without notice. Check back frequently for current information.

HORT 212 – Introduction to Organic Agricultural Systems (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25549914004Lloyd, D.Online Open501700
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 212 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 217 – Social Impacts of Science (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25597124003Hooven, L.Online Open704900
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 217 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 228 – Landscape Plant Materials II: Spring Flowering Trees and Shrubs (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25516974004Blanchard, D.Online Open753100
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 228 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 273 – Therapeutic Horticulture Programming (2)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25597134002Bierman, M.Online Open301800
Registration Restrictions
Enforced Prereqs: HORT 272 [D-]
Class Notes: This is the fourth course in a 6 course, 14 credit sequencein therapeutic horticulture required for completion of the Therapeutic Horticulture Option and registration with theAmerican Horticultural Therapy Association.Note that withdrawl and refund dates are different for this 5 week course. See

Non-Traditional Course Deadlines for important information.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Session: 1st 5 Week Module. Course runs March 31 to May 2, 2025.
Find textbooks for HORT 273 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 274 – Therapeutic Horticulture Skills II (2)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25597144002Bierman, M.Online Open302000
Registration Restrictions
Enforced Prereqs: HORT 273* [D-]
Class Notes: This is the fifth course in a 6 course, 14 credit sequence in therapeutic horticulture required for completion of the Therapeutic Horticulture Option and registration with the American Horticultural Therapy Association.Note that withdrawl and refund dates are different for this 5 week course. See

Non-Traditional Course Deadlines for important information.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Session: 2nd 5 Week Module. Course runs May 5 to June 6, 2025.
Find textbooks for HORT 274 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 301 – Growth and Development of Horticultural Crops (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25518214003Contreras, R.Online Open60141010
Registration Restrictions
Recommended: General biology or botany sequence.
Class Notes: All course activities are online.Required comment: This course requires online proctored testing, which mayinclude testing fees and the use of security measures, suchas a scan of your testing environment. Please carefullyreview online proctor test information at:https://ecampus.oregonstate.edu/services/proctoring .

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 301 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 307 – Organic System Predicaments (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25537124003Lloyd, D.Online Open402655
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 307 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 315 – Sustainable Landscapes: Maintenance, Conservation, Restore (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25518804004Shay, A.Online Open30355
Registration Restrictions
Recommended: Basic knowledge of plant physiology
Class Notes: No outdoor labs for Ecampus section.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 315 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 318 – Applied Ecology of Managed Ecosystems (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25518294003Lambrinos, J.Online Closed25000
Registration Restrictions
Major Restrictions: +145 (Horticulture)
Campus Restrictions: +DSC (Dist. Degree Corvallis Student)
Class Notes: Distance students will have alternate learning activities in lieu of the field trip

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 318 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 330 – Pests, Plagues and Politics (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25518924003Miller, B.Online Open100400
Registration Restrictions
Recommended: Critical thinking, synthesis, and writing skills
Class Notes: If course is full, please check ENT 300 for openings.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 330 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 331 – Pollinators in Peril (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25523124003Hooven, L.Online Open4021010
Registration Restrictions
Recommended: Completion of a Baccalaureate Core biological science course
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 331 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 344 – Insect and Disease Management in Organic Cropping Systems (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25537174003Stone, A.Online Open301855
Registration Restrictions
Enforced Prereqs: BOT 220 [D-] or CROP 200 [D-] or HORT 301 [D-] or ( (BI 211 [D-] or BI 211H [D-] ) and (BI 212 [D-] or BI 212H [D-] ) and (BI 213 [D-] or BI 213H [D-] ) )(BI 221 [D-] or BI 221H [D-] ) and (BI 222 [D-] or BI 222H [D-] ) and (BI 223 [D-] or BI 223H [D-] ) or (BI 204 [D-] and BI 205 [D-] and BI 206 [D-] )
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 344 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 349 – Diagnosing Plant Problems (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25537404003Edmunds, B.Online Open35255
Registration Restrictions
Recommended: Background in basic biology, plant pathology and/or entomology from a university or practical setting
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 349 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 360 – Irrigation and Drainage (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25544434004Kowalewski, A.Online Open301555
Registration Restrictions
Enforced Prereqs: CSS 305 [D-] or CSS 205 [D-] or ( (SOIL 205 [D-] or SOIL 205H [D-] ) and (SOIL 206 [D-] or SOIL 206H [D-] or FOR 206 [D-] ) )
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 360 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 380 – Sustainable Landscape Design (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25598844003Kowalewski, A.Online Open15200
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 380 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 403 – Thesis (1-16)

This course is repeatable for a maximum of 16 credits.

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25520994001-16Gearhart, A.Online Open101000
Registration Restrictions
Major Restrictions: +145 (Horticulture)
Campus Restrictions: +DSC (Dist. Degree Corvallis Student)
Department Approval Required
Class Notes: Submission of statement of intent and meetingwith Horticulture Advisor required.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 403 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 410 – Internship (1-12)

This course is repeatable for a maximum of 12 credits.

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25518634001-12Gearhart, A.Online Open302500
Registration Restrictions
Major Restrictions: +145 (Horticulture)
Campus Restrictions: +DSC (Dist. Degree Corvallis Student)
Department Approval Required
Class Notes: Submission of statement of intent and meetingwith Horticulture Advisor required.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 410 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 414 – Precision Agriculture (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25577364004Verhoeven, E.Online Open10133
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 414 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 418 – Golf Course Maintenance (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25544454004Schmid, C.Online Open201200
Registration Restrictions
Recommended: HORT 314
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 418 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 447 – Arboriculture (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25518284004Low, S.Online Open15933
Registration Restrictions
Recommended: (FES 241 or HORT 226 or HORT 228) and (FOR 111 or HORT 112)
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 447 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 456 – Physiology and Production of Berry Crops (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25561134004Lukas, S.Online Open251555
Registration Restrictions
Enforced Prereqs: HORT 301 [D-]
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 456 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 480 – Case Studies in Cropping Systems Management (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25561594004Duval, A.Online Open25500
Registration Restrictions
Recommended: CROP 300/HORT 300 or HORT 301; prior knowledge of plant physiology, soils, entomology, weed science, plant pathology, and plant nutrition
Class Notes: Distance students have alternate activities in lieu of field trip.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 480 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 482 – Design and Management of Organic Cropping Systems (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25544464003StaffOnline Waitlisted0055
Registration Restrictions
Enforced Prereqs: HORT 212 [C-] and CROP 355 [C-] and HORT 306* [C-] and HORT 307* [C-] and HORT 308* [C-] and HORT 344* [C-] and SOIL 360* [C-]
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact department to request syllabus.
Find textbooks for HORT 482 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 483 – Case Studies in Urban Agriculture (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25544474003Nelson, M.Online Open40155
Registration Restrictions
Recommended: General background or previous coursework in agriculture
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 483 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 485 – Advanced Permaculture Design Tools for Climate Resilience (3)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25533954003Orion, T.Online Open201855
Registration Restrictions
Enforced Prereqs: HORT 285 [B]
Class Notes: Permaculture Institute of North America certifies coursecompletion. Meets international standards.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 485 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 499 – Special Topics (1-16)

This course is repeatable for a maximum of 16 credits.

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25579304001-16Myers, J.Online Open10300
Section Title: Special topic: plant breed seeds org systm
Class Notes:

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 499 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 547 – Arboriculture (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25521574004Low, S.Online Open6300
Registration Restrictions
Recommended: (FES 241 or HORT 226 or HORT 228) and (FOR 111 or HORT 112)
Level Limitations: +02 (Graduate)
Class Notes: Does not meet Graduate School's stand-alone requirement.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 547 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 556 – Physiology and Production of Berry Crops (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25561354004Lukas, S.Online Open5200
Class Notes: Does not meet Graduate School's stand-alone requirement.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 556 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.


HORT 580 – Case Studies in Cropping Systems Management (4)

TermCRNSecCrP/NInstructorTypeStatusCapAvailWL CapWL Avail
Sp25561604004Duval, A.Online Open101000
Class Notes: Does not meet Graduate School's stand-alone requirement.

Textbooks  [ Textbooks]

Syllabus: Available in Canvas to students enrolled in this course. Or contact instructor to request syllabus. (Note: An ONID account is required to view OSU's online directory.)
Find textbooks for HORT 580 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.



Legend
= Signifies the course as a Baccalaureate Core Course.
= Signifies that fees may apply to the course.
+ = Include restriction.
- = Exclude restriction.
* = Prereq may be taken prior to or simultaneously with this course.