Information Package / Course Catalogue
Bulbous and Tuberous Ornamental Plants
Course Code: PSB123
Course Type: Area Elective
Couse Group: Short Cycle (Associate's Degree)
Education Language: Turkish
Work Placement: N/A
Theory: 2
Prt.: 1
Credit: 3
Lab: 0
ECTS: 3
Objectives of the Course

The aim of this course is to teach the morphological characteristics, propagation methods, cultivation requirements, maintenance practices, and use of bulbous, tuberous, cormous, and rhizomatous ornamental plants in landscape design and cut flower production. Within the scope of the course, students are expected to recognize economically important bulbous and tuberous ornamental plant species and evaluate their production and maintenance processes in accordance with basic professional principles.

Course Content

The course covers the definition, classification, morphological characteristics, ecological requirements, propagation methods, planting time and planting techniques, maintenance practices, lifting, storage and preservation conditions, disease and pest management, and the use of bulbous and tuberous ornamental plants in landscape design and cut flower production. Important species such as tulip, daffodil, hyacinth, lily, gladiolus, freesia, iris, dahlia, begonia, anemone, and ranunculus are discussed as examples.

Name of Lecturer(s)
Learning Outcomes
1.Explains the definition, scope, and basic characteristics of bulbous, tuberous, cormous, and rhizomatous ornamental plants.
2.Classifies bulbous and tuberous ornamental plants according to their morphological structures, intended uses, and cultivation requirements.
3.Recognizes the main bulbous and tuberous ornamental plant species and relates them to appropriate uses in landscape design and cut flower production.
4.Explains planting, maintenance, irrigation, fertilization, lifting, storage, and preservation practices in bulbous and tuberous ornamental plants.
5.Evaluates basic cultivation problems, disease and pest risks, and solution approaches in bulbous and tuberous ornamental plants.
Recommended or Required Reading
1.De Hertogh, A., & Le Nard, M. (1993). The Physiology of Flower Bulbs: A Comprehensive Treatise on the Physiology and Utilization of Ornamental Flowering Bulbous and Tuberous Plants.
2.Kamenetsky, R., & Okubo, H. (Eds.). (2012). Ornamental Geophytes: From Basic Science to Sustainable Production. CRC Press.
3.Hartmann, H. T., Kester, D. E., Davies, F. T., Geneve, R. L., Wilson, S. B., & Hartmann, D. E. (2018). Hartmann and Kester’s Plant Propagation: Principles and Practices (9th ed.). Pearson.
4.Dole, J. M., & Wilkins, H. F. (2005). Floriculture: Principles and Species (2nd ed.). Pearson/Prentice Hall.
5.Lecturer’s Course Notes.
Weekly Detailed Course Contents
Week 1 - Theoretical & Practice
Introduction to bulbous and tuberous ornamental plants; definition, scope, and economic importance.
Week 2 - Theoretical & Practice
Concepts of bulb, tuber, corm, and rhizome; morphological characteristics and differences.
Week 3 - Theoretical & Practice
Classification of bulbous and tuberous ornamental plants; species groups and intended uses.
Week 4 - Theoretical & Practice
Ecological requirements of bulbous and tuberous ornamental plants; light, temperature, soil, humidity, and drainage conditions.
Week 5 - Theoretical & Practice
Propagation methods in bulbous and tuberous ornamental plants; offset bulbs, tuber division, cormels, rhizome division, and seed propagation.
Week 6 - Theoretical & Practice
Planting practices in bulbous and tuberous ornamental plants; planting time, planting depth, planting spacing, and planting techniques (Assignment)
Week 7 - Theoretical & Practice
Maintenance practices in bulbous and tuberous ornamental plants; irrigation, fertilization, weed control, and support practices.
Week 8 - Theoretical & Practice
Growing media in bulbous and tuberous ornamental plants; evaluation of drainage, maintenance practices, and cultivation conditions (Midterm exam).
Week 9 - Theoretical & Practice
Cultivation of tulip, daffodil, hyacinth, and lily species; morphological characteristics and areas of use.
Week 10 - Theoretical & Practice
Cultivation of gladiolus, freesia, iris, and anemone species; production techniques and maintenance practices.
Week 11 - Theoretical & Practice
Cultivation of ranunculus, dahlia, begonia, and other important species; species identification and practical evaluation (Practical).
Week 12 - Theoretical & Practice
Lifting of bulbs and tubers; drying, storage, and preservation conditions.
Week 13 - Theoretical & Practice
Diseases, pests, and physiological disorders in bulbous and tuberous ornamental plants; basic control approaches.
Week 14 - Theoretical & Practice
Areas of use of bulbous and tuberous ornamental plants; landscape design, potted plant production, and cut flower production.
Assessment Methods and Criteria
Type of AssessmentCountPercent
Practice1%5
Assignment1%5
Midterm Examination1%30
Final Examination1%60
Workload Calculation
ActivitiesCountPreparationTimeTotal Work Load (hours)
Lecture - Theory141242
Lecture - Practice141128
Assignment1112
Midterm Examination1112
Final Examination1112
TOTAL WORKLOAD (hours)76
Contribution of Learning Outcomes to Programme Outcomes
PÇ-1
PÇ-2
PÇ-3
PÇ-4
PÇ-5
PÇ-6
PÇ-7
PÇ-8
PÇ-9
PÇ-10
OÇ-1
5
2
3
2
OÇ-2
5
2
2
4
4
OÇ-3
5
2
3
5
4
OÇ-4
5
2
3
5
3
5
OÇ-5
4
4
4
3
5
2
4
Adnan Menderes University - Information Package / Course Catalogue
2026