Horticulture (HRT) at Patrick Henry Community College


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HRT 100 - Introduction to Horticulture
Introduces commercial horticulture industry with emphasis on career opportunities. Examines equipment, facilities, and physical arrangements of production, wholesale and retail establishments. Surveys individual areas within horticulture industry.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 110 - Principles of Horticulture
Introduces concepts of plant growth and development. Covers horticultural practices, crops and environmental factors affecting plant growth.
Lecture 3 hours per week.
3 credits
HRT 115 - Plant Propagation
Teaches principles and practices of plant propagation. Examines commercial and home practices. Provides experience in techniques using seed-spores, cuttings, grafting, budding, layering and division.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 125 - Chemicals in Horticulture
Emphasizes basic chemical principles and their application to horticulture. Introduces principles of inorganic and organic chemicals. Studies chemical activities of insecticides, fungicides, herbicides, fertilizers, and growth regulators.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 150 - Theory of Landscape Design
Presents the theoretical aspects of landscape planning and design. Uses theory to analyze and solve design problems.
Lecture 3 hours per week.
3 credits
HRT 190 - Coordinated Internship
Supervises on-the-job training in selected business, industrial or service firms coordinated by the college.
Credit/practice ratio not to exceed 1:5 hours. May be repeated for credit. Variable hours.
1-5 credits
HRT 195 - Topics In
Provides an opportunity to explore topical areas of interest to or needed by students.
May be used also for special honors courses. May be repeated for credit. Variable hours.
1-5 credits
HRT 199 - Supervised Study
Assigns problems for independent study incorporating previous instruction and supervised by the instructor.
May be repeated for credit. Variable hours.
1-5 credits
HRT 201 - Landscape Plants I
Studies landscape use of plants. Considers ornamental value, growth habit, identification, and limitations. Part I of II.
Lecture 2-3 hours. Laboratory 2 hours. Total 4-5 hours per week.
3-4 credits
HRT 202 - Landscape Plants II
Studies landscape use of plants. Considers ornamental value, growth habit, identification, and limitations. Part II of II.
Lecture 2-3 hours. Laboratory 2 hours. Total 4-5 hours per week.
3-4 credits
HRT 207 - Plant Pest Management
Teaches principles of plant pest management. Covers morphology and life cycles of insects and other small animal pests and plant pathogens. Lab stresses diagnosis, chemical and non-chemical control of specific pests, and pesticide safety.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 226 - Greenhouse Management
Discusses the theoretical and applied practices of managing a greenhouse facility. Emphasizes greenhouse construction and design, environmental control, energy conservation, and related topics.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 228 - Turfgrass Management I
Applies scientific principles for the establishment and maintenance of intensely managed turfgrass. Topics covered include cultivar selection, seeding, sprigging and sodding techniques, fertilization, watering, weed identification and control, insect identification and control, fungus identification and control, soil structure, drainage, topdressing, and mowing frequency and height.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 231 - Planting Design I
Applies landscape theory and principles of drawing to the planning of residential and small scale commercial landscape designs.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 233 - Landscape Drawing Applications
Applies theories of landscape design and drawing to actual design projects and tasks. Emphasizes drawing techniques and use of advanced media in applications. Includes hard line, free-style, and computer-assisted landscape drawing in simple landscape drawing applications.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 246 - Herbaceous Plants
Studies identification, culture and uses of herbaceous plants in landscaping. Includes perennials, biennials, common bulbs and annuals. Teaches scientific and common names of plants.
Lecture 1-2 hours. Laboratory 2 hours. Total 3-4 hours per week.
2-3 credits
HRT 249 - Perennial Plants
Considers the perennial plants used in the landscape. Includes site selection and evaluation for perennial culture, perennial plant selection, perennial culture under various environmental conditions, taxonomic identification, and control of insects and diseases.
Lecture 1-2 hours. Laboratory 2 hours. Total 3-4 hours per week.
2-3 credits
HRT 259 - Arboriculture
Studies the techniques of tree care. Covers surgery, pruning, insect and disease recognition and control, fertilization, cabling, and lightning rod installation.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 260 - Introduction to Floral Design
Teaches skills required for the composition of basic table arrangements. Includes the history of design styles, identification of flowers and green, identification and use of equipment, and conditioning and handling of flowers.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 269 - Professional Turf Care
Covers turf grass identification selection, culture, propagation, and pest control. Surveys commercial turf care operations and use of common equipment.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 275 - Landscape Construction and Maintenance
Examines practical applications of commercial landscape construction techniques, and materials used. Covers construction, planting, and maintenance.
Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
3 credits
HRT 290 - Coordinated Internship
Supervises on-the-job training in selected business, industrial or service firms coordinated by the college.
Credit/practice ratio not to exceed 1:5 hours. May be repeated for credit. Variable hours.
1-5 credits