Home  ›  Schedule of Classes  ›  Ecatalog Subject List

Ecampus Schedule of Classes - Fall 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 112 – Introduction to Horticultural Systems, Practices and Careers (2)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11710	400	2	Gearhart, A.	Online	Open	45	25	10	10
	Registration Restrictions Major Restrictions: +145 (Horticulture)
	Class Notes: Distance students will have alternatelearning activities in lieu of the field trip.Campus restrictions for this section will lift after Week 10. 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 112 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 120 – Introduction to Hemp (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	20190	400	3	Jeliazkov, V.	Online	Open	47	45	0	0
	Class Notes: Campus restrictions for this section end Monday of Week 10. 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 120 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 212 – Introduction to Organic Agricultural Systems (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	13803	400	4	Lloyd, D.	Online	Open	50	34	5	5
	Class Notes: Campus restrictions for this section will lift after Week 10. 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 – +Science for Self and Society (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	13072	400	3	Hooven, L.	Online	Open	70	66	0	0
	Class Notes: No textbook required.Campus restrictions for this section will lift after Week 10. 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 226 – Landscape Plant Materials I: Deciduous Hardwoods and Conifers (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11709	400	4	Blanchard, D.	Online	Open	75	55	10	10
	Class Notes: Campus restrictions for this section will lift after Week 10.Textbooks 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 226 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 270 – Introduction to Therapeutic Horticulture (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	17287	400	3	Bierman, M.	Online	Open	35	26	0	0
	Class Notes: This is the first course in a 6 course, 14 credit sequencein therapeutic horticulture required for completion of the Therapeutic Horticulture Option and registration with the American Horticultural Therapy Association.Campus restrictions for this section will lift after Week 10. 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.)
F25	20312	401	3	Bierman, M.	Online	Open	10	10	0	0
	Registration Restrictions Campus Restrictions: +DSC (Dist. Degree Corvallis Student) Level Limitations: +04, +05, +06 (Non-Degree / Credential, Professional, INTO OSU GE/AE/Pathways)
	Class Notes: Campus restrictions will extend beyond week 10. 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 270 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)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11823	400	3	Staff	Online	Cancelled	0	0	0	0
	Registration Restrictions Major Restrictions: +1200, +145 (Crop Science, Horticulture) Recommended: General biology or botany sequence.
	Class Notes: All course activities are online.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 .Campus restrictions for this section will lift after Week 10. Textbooks [ Textbooks]
	Syllabus: Available in Canvas to students enrolled in this course. Or contact department to request syllabus.
F25	20217	401	3	Contreras, R.	Online	Open	60	45	10	10
	Registration Restrictions Major Restrictions: +120, +145 (Crop and Soil Science, Horticulture) Recommended: General biology or botany sequence.
	Class Notes: Campus restrictions for this section end Monday of Week 10. 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 308 – Weed Management in Organic Cropping Systems (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	14141	400	3	Lloyd, D.	Online	Open	45	29	5	5
	Class Notes: Campus restrictions set to extend through Monday of Week 10. 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 308 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 314 – Principles of Turfgrass Maintenance (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	12122	400	4	Schmid, C.	Online	Open	30	22	5	5
	Registration Restrictions Recommended: CSS 205 or CSS 305 or SOIL 205
	Class Notes: Distance students will have alternate learning activities inlieu of the field trip.Lab kit available through OSU Beaver Bookstore.Campus restrictions for this section will lift after Week 10. 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 314 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 316 – Plant Nutrition (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11708	400	4	Kowalewski, A.	Online	Open	100	47	10	10
	Registration Restrictions Enforced Prereqs: CSS 205 [D-] or CSS 305 [D-] or SOIL 205 [D-] or SOIL 205H [D-]
	Class Notes: Campus restrictions for this section will lift after Week 10. 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 316 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)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11824	400	3	Lambrinos, J.	Online	Closed	25	0	0	0
	Registration Restrictions Campus Restrictions: +DSC (Dist. Degree Corvallis Student)
	Class Notes: Distance students will have alternate learning activities in lieu of outdoor activities.Campus restrictions for this section will extend after Week 10. 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)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	12017	400	3	Miller, B.	Online	Open	40	19	10	10
	Class Notes: If course is full, please check ENT 300 for openings.Campus restrictions for this section will lift after Week 10. 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 (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	12305	400	4	Hooven, L.	Online	Open	35	22	0	0
	Registration Restrictions Class Limitations: -1, -2 (Freshman, Sophomore)
	Class Notes: If course is full, please check ENT 331 for openings.Campus restrictions for this section will lift after Week 10. 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 350 – Urban Forestry (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11560	400	3	Killian, J.	Online	Open	25	16	5	5
	Registration Restrictions Recommended: Foundational forestry and horticulture courses
	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 350 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)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	20189	400	4	Kowalewski, A.	Online	Open	30	25	5	5
	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: Campus registration will lift week 10. 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 401 – Research (1-16)

This course is repeatable for a maximum of 16 credits.

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	17288	400	1-16	Gearhart, A.	Online	Open	10	10	0	0
	Registration Restrictions Major Restrictions: +145 (Horticulture) Campus Restrictions: +DSC (Dist. Degree Corvallis Student) Department Approval Required
	Class Notes: Instructor consent required.Campus restrictions for this section extend into Week 10. 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 401 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.

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	12135	400	1-16	Gearhart, A.	Online	Open	10	10	0	0
	Registration Restrictions Major Restrictions: +145 (Horticulture) Campus Restrictions: +DSC (Dist. Degree Corvallis Student) Department Approval Required
	Class Notes: Submission of statement of intent andmeeting with Horticulture Advisor requiredCampus restrictions for this section extend into Week 10. 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.

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	11996	400	1-12	Gearhart, A.	Online	Open	30	19	0	0
	Registration Restrictions Major Restrictions: +145 (Horticulture) Campus Restrictions: +DSC (Dist. Degree Corvallis Student) Department Approval Required
	Class Notes: Submission of statement of intent and meeting with Horticulture Advisor requiredCampus restrictions for this section extend into Week 10. 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 421 – Herbs, Spices, and Medicinal Plants (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	14089	400	3	Staff	Online	Closed	0	0	0	0
	Registration Restrictions Recommended: CROP 200 or equivalent horticulture course
	Class Notes: Campus restrictions set to extend through Monday of Week 10. Textbooks [ Textbooks]
	Syllabus: Available in Canvas to students enrolled in this course. Or contact department to request syllabus.

Find textbooks for HORT 421 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 447 – Arboriculture (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	20295	400	4	Low, S.	Online	Open	15	15	0	0
	Registration Restrictions Recommended: (FES 241 or HORT 226 or HORT 228) and (FOR 111 or HORT 112)
	Class Notes: Campus restrictions for this section end Monday of Week 10 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 455 – Urban Forest Planning, Policy and Management (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	12243	400	4	Ries, P.	Online	Open	5	1	0	0
	Registration Restrictions Enforced Prereqs: FES 350 [C-] or HORT 350 [C-]
	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 455 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 521 – Herbs, Spices, and Medicinal Plants (3)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	14090	400	3	Staff	Online	Closed	0	-1	0	0
	Registration Restrictions Recommended: CROP 200 or equivalent course in HORT.
	Class Notes: Campus restrictions for this section lift after Week 10. Textbooks [ Textbooks]
	Syllabus: Available in Canvas to students enrolled in this course. Or contact department to request syllabus.

Find textbooks for HORT 521 at the OSU Beaver Store (current term only). For questions related to course materials, contact the OSU Beaver Store.

HORT 547 – Arboriculture (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	20399	400	4	Low, S.	Online	Open	6	6	0	0
	Registration Restrictions Recommended: (FES 241 or HORT 226 or HORT 228) and (FOR 111 or HORT 112)
	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 555 – Urban Forest Planning, Policy and Management (4)

Term	CRN	Sec	Cr	Instructor	Type	Status	Cap	Avail	WL Cap	WL Avail
F25	12244	400	4	Ries, P.	Online	Open	5	1	0	0
	Registration Restrictions Recommended: FES 350 or HORT 350 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 555 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.

Request info

Ecampus Schedule of Classes - Fall 2025

Horticulture Course Schedule

Features and Navigation

Academic calendar

Ready to apply?

Ask Ecampus

Footer

Contact Info

About Us

Quick Navigation

Resources

Our Division

Division of Educational Ventures

Social Media and Canvas

For Faculty

Request info

Take a test drive

Ecampus Schedule of Classes - Fall 2025

Horticulture Course Schedule

Features and Navigation

Academic calendar

Ready to apply?

Ask Ecampus