- HS 100 - Home Horticulture
- HS 201 - Principles of Horticulture
- HS 211 - Ornamental Plants I
- HS 212 - Ornamental Plants II
- HS 215 - Basic Agricultural Genetics
- HS 252 - Landscape Graphic Communication
- HS 290 - Perspectives in Horticultural Science
- HS 301 - Plant Propagation
- HS 302 - Gardening with Herbaceous Perennials
- HS 342 - Landscape Horticulture
- HS 357 - Site Design and Construction Materials
- HS 371 - Interior Plantscapes
- HS 400 - Residential Landscaping
- HS 401 - Landscape Construction Studio
- HS 411 - Nursery Management
- HS 416 - Principles of Ornamental Planting Design
- HS 421 - Physiology and Culture of Temperate-Zone Tree Fruits
- HS 422 - Small Fruit Production
- HS 431 - Vegetable Production
- HS 432 - Introduction to Permaculture
- HS 440 - Greenhouse Management
- HS 442 - Production of Floricultural Crops
- HS 451 - Plant Nutrition
- HS 462 - Postharvest Physiology
- HS 471 - Tree and Grounds Maintenance
- HS 492 - External Learning Experience
- HS 493 - Special Problems in Horticultural Science
- HS 495 - Special Topics in Horticultural Science
- HS 502 - Plant Disease: Methods and Diagnosis
- HS 525 - Advanced Plant Propagation
- HS 541 - Plant Breeding Methods
- HS 542 - Advanced Vegetable Crop Management
- HS 590 - Special Problems in Horticultural Science
- HS 601 - Seminar Techniques and Technology
- HS 610 - Special Topics in Horticultural Science
- HS 615 - Advanced Special Topics
- HS 685 - Master's Supervised Teaching
- HS 688 - Non-Thesis Masters Continuous Registration - Half Time Registration
- HS 689 - Non-Thesis Master Continuous Registration - Full Time Registration
- HS 690 - Master's Examination
- HS 693 - Master's Supervised Research
- HS 695 - Master's Thesis Research
- HS 696 - Summer Thesis Research
- HS 699 - Master's Thesis Preparation
- HS 701 - Carbohydrate Metabolism and Transport
- HS 702 - Biology of Plant Hormones
- HS 703 - Breeding Asexually Propagated Crops
- HS 704 - Plant Nomenclature
- HS 705 - Physiology Of Flowering
- HS 706 - Fruit Development and Postharvest Physiology
- HS 707 - Environmental Stress Physiology
- HS 715 - Weed Science Research Techniques
- HS 717 - Weed Management Systems
- HS 718 - Biological Control Of Weeds
- HS 720 - Molecular Biology In Plant Breeding
- HS 722 - Mineral Nutrition In Plants
- HS 725 - Herbicide Chemistry
- HS 727 - Herbicide Behavior In Soil and Water
- HS 729 - Herbicide Behavior In Plants
- HS 732 - Vegetable Crop Physiology
- HS 745 - Quantitative Genetics In Plant Breeding
- HS 746 - Breeding Methods
- HS 748 - Breeding For Pest Resistance
- HS 790 - Special Problems in Horticultural Science
- HS 815 - Advanced Special Topics
- HS 860 - Plant Breeding Laboratory
- HS 861 - Plant Breeding Laboratory
- HS 885 - Doctoral Supervised Teaching
- HS 890 - Doctoral Preliminary Examination
- HS 891 - Research Principal
- HS 893 - Doctoral Supervised Research
- HS 895 - Doctoral Dissertation Research
- HS 896 - Summer Dissertation Research
- HS 899 - Doctoral Dissertation Preparation