Bachelor of Science (B.S.) in Horticulture, Horticultural Business Management Concentration

Earn your horticulture degree online

Horticulture is central to how humans survive and thrive on the planet — it feeds us, improves our mental and physical well-being, and creates the settings of our everyday lives. Yet, there are currently not enough skilled horticulturalists to meet growing needs for a safe and healthy food supply, and functional, scenic green spaces. By completing this online horticulture degree from Colorado State University, you can develop the knowledge and skills to nurture a healthier, more beautiful world, and pursue a career in an increasingly in-demand field.

Learn the science and business of growing plants

Growing and managing plants as a career requires you to understand both science and business, and this online horticulture bachelor’s degree completion program emphasizes both of these areas. The curriculum spans the whole system of horticulture — the cycle from seed to product — ensuring you have a well-rounded background that will help you succeed in many facets of the green industry.

This program’s horticulture science courses improve your understanding of plant growth, development, and environmental response, so you can better manage plant production and improve the quality and quantity of your yields. Specifically, you will learn about:

  • Plant identification
  • Pest management
  • Plant cultivation
  • Controlled environment agriculture

Additionally, agriculture-focused business courses train you in areas fundamental to managing a horticultural business. These courses focus on:

  • Finance
  • Marketing
  • Economics
  • Law

Online learning in a hands-on fashion

Horticulture is by nature a hands-on field, and although this program is online, it provides plenty of active and engaging learning opportunities. Projects like developing greenhouse models and writing business plans give you the practical experience you need to succeed in the industry. Many careers in horticulture involve sales, management, and finance, and this program helps you build your skills in these areas through courses with an agricultural focus.

Faculty also make it a priority to facilitate frequent and meaningful conversations through email, online discussion forums, video chat, and other applications. This gives you the opportunity to learn in-depth from researchers and practitioners who are passionate, knowledgeable, and experienced in all aspects of horticulture. Additionally, with an average class size of 21 students, this online horticulture bachelor’s degree program allows you to interact closely with your peers.

In addition to earning your horticulture degree, you have the option to further specialize your knowledge with a degree minor. Choose from nine minors, including:

  • Agricultural Business
  • Anthropology
  • Business Administration
  • Economics
  • Gerontology
  • Global and Environmental Sustainability
  • Media Studies
  • Political Science
  • Sociology

ASHS Certified Horticulturist Program

The American Society for Horticultural Science will cease accepting applications for the Certified Horticulturist Examination as of December 31, 2019. The ASHS Board of Directors decided to terminate the program after 11 years of operation. The program will remain in Legacy status with ASHS. All current ASHS Certified Horticulturists will be able to retain their certification for 3-year intervals by meeting the requirements of attaining 30 continuing education units (CEUs) and paying the appropriate renewal fee. All other regulations regarding revocation of certification in the original application remain in effect for the duration of the certification.

The ASHS Certified Professional Horticulturist and Associate Professional Horticulturist programs are unaffected by this decision and remain in operation for qualified individuals.
Renewal of Certifications
The ASHS Certified Horticulturist designation can be renewed for those who:
• maintain the necessary number of continuing education units (CEUs) to re-certify after 3 years, and
• pay the necessary re-certification fees every 3 years.
Forms for Renewal:
Download the Continuing Education Units Reporting Form
Download the Renewal Form

The ASHS Certified Horticulturist designation ensures clients, consumers, and employers that you possess valuable knowledge and skills in horticulture.

ASHS Certified Horticulturists (CH) are practicing horticulturists who are skilled and knowledgeable in all areas of horticulture. Those with the ASHS CH certification were required to pass a rigorous four-hour exam based on the following areas of horticulture:

  • Landscape Design and Maintenance
  • Production of Fruits, Vegetables, Turf, and Ornamental Plants
  • Shipping and Handling of Final Product
  • Propagation
  • Monitoring and Testing,
  • Diagnosing and Managing Plant Problems
  • Business Practices

The Horticulturist’s Certification Study Guide and the other resources developed for the ASHS CH program are a valuable resource for those preparing for other Horticultural Certifications.

Horticulturist’s Certification Study Guide

146 pages, full color (second printing)
$45, plus shipping – Members
$55, plus shipping – Non-Members

Please allow 3 weeks for processing and shipping a CH study guide book within the United States. If you need it sooner, please choose for a faster shipping method in the shopping cart.

To order from the ASHS Online Shopping Cart:

The ASHS CH Study Outline is a 52 page document that reviews the topics every Horticulturist should know:

Download the ASHS CH Study Outline

The CH Sample Quiz tests your knowledge of Horticulture and can be a helpful tool for Horticulture students:

Test your knowledge with sample quizzes in the following 7 topics::

  • Landscape Design and Maintenance
  • Production of Fruits, Vegetables, Turf and Ornamental Plants
  • Handling and Shipping of Horticultural Products
  • Propagation
  • Monitoring and Testing
  • Diagnosing and Managing Plant Problems
  • Business Practices


B.S. in Horticulture – Online

Overview | Curriculum | Careers | Tuition & Fees | Contact Us


As a horticulture major, you will study plant pathology, pest and weed management, soils, ecology, agricultural business and policy within the diverse field of horticulture. You will participate in applied, experiential learning, and our faculty will share their knowledge and research of the latest technologies and trends in the horticulture field.

After completing degree requirements, you will receive a Bachelor of Science in Horticulture from Oregon State University.

Major requirements

Students must complete four main areas in order to graduate:

  1. Baccalaureate core: 33 credits plus a Writing Intensive Course (WIC) of at least 3 credits
  2. Horticulture major core: 71-plus credits
  3. General horticulture option requirements: 54-plus credits
  4. Electives: as needed to meet the 180 credit minimum to graduate

A total of 180 quarter credits are required to graduate, including at least 60 upper-division credits.

To view the horticulture major requirements, please visit Oregon State’s official academic catalog. For additional information about the baccalaureate core, visit our bacc core details page.

Example course topics

  • Plant nutrition
  • Weed management
  • Plant propagation
  • Landscape plant materials
  • Organic farming and gardening
  • Sustainable landscapes
  • Urban forestry
  • Applied ecology
  • Environmental economics and policy

Horticulture internship

Because horticulture is a very applied discipline, it is important for you to gain hands-on field experience in order to successfully use the knowledge you gain from your classes. As part of your studies, you will be required to complete a 360-hour internship.

The internship will be especially important because employers look for graduates who have shown that they can apply academic knowledge to the practical field of horticulture. OSU’s Department of Horticulture encourages you to find as many opportunities to work in the field as you can during your time in school.

NOTE: If you are currently working in the horticultural industry, you may be able to use your employment to meet the internship requirement.

Transfer credit

Some of the degree requirements can be transferred from other colleges and universities. Please note that a minimum of 45 credits of the last 75 must be completed at Oregon State (online or on campus) to meet the academic residency requirement. Previously earned credits will need to be reviewed upon admittance into OSU for appropriate articulation. Additional information about transferring credits is available through the single course search tool provided by OSU’s Office of Admissions.

Add a minor to your degree program

Oregon State Ecampus students have the ability to add a minor to their degree program. OSU offers a diverse selection of minors online. You can combine horticulture and a business minor or horticulture plus a geography minor to create an even more powerful résumé fit for today’s competitive job market.

Notice: Oregon State University students may now take part in internships anywhere in the United States. Read more about Ecampus’ authorization to operate in your state.

Waterperry Gardens Ticket Price, Hours, Address and Reviews

With breathtaking views in every direction, the Waterperry Gardens is truly a delight to visit. Flowers, ponds, trees, shrubs, bushes, lawns, it has everything one expects from a garden, and more. Complete with nurseries, orchards, a plant sales centre and a tearoom, this is a garden like no other you have seen. A walk around this tranquil place enables you to meditate and clear your mind. The Museum of Rural Life, Waterperry House and the church of St Mary the Virgin are few of the other attractions at this place. Coach parties and group visits are welcome here, though make sure to pre-book if you are more than 20 members. Guided tours are available on request and are a great way of learning about the gardens. There are various courses offered here as well, from garden photography to green roof to garden design. With different colours painting the landscape in different seasons, the Waterperry Gardens is an all-year destination.

More about Oxford

To personalise your visit to the city, you can use an all-inclusive Oxford trip planner for the same that will give detailed information about visiting the city.

You can add cozy hotels in Oxford like The Sportsview Guest House, Old Black Horse Inn and Newton House Guesthouse.

Chalk out the best way to discover the city with Oxford vacation packages. Check out various modes for how to reach Oxford.

How to Reach Waterperry Gardens

  • Rent a taxi or a cab.

Love this? Explore the entire list of places to visit in Oxford before you plan your trip.

Fancy a good night’s sleep after a tiring day? Check out where to stay in Oxford and book an accommodation of your choice.

Horticulture Part-time Courses

Students who do not wish to pursue a full time horticultural programme with Teagasc can opt to complete a single module or a number of modules on a part time basis. The list of modules below are available:

Location and further details:

  • Teagasc College of Amenity Horticulture, National Botanic Gardens, Glasnevin, Dublin 9 Tel: 01 8040201 Email: [email protected]
  • Teagasc College of Horticulture, Kildalton, Piltown, Co Kilkenny Tel: 051 644400 Email: [email protected]

Plant Identification & Use (Level 5 Component Award – QQI 5N2527)

Students will acquire the knowledge, skills and competence to identify a wide range of plants, their characteristics and use in different horticultural situations. A plant portfolio will be completed as part of the assessment.

Horticulture Mechanisation (Level 5 Component Award – QQI 5N2527)

The course will equip students with the knowledge, skills and competence to operate and maintain a range of hand and powered horticultural machinery and implements. It is designed for people who wish to further their knowledge and experience of the safe use and maintenance of a wide range of hand and pedestrian operated equipment used in the horticultural sector.

Fruit and Vegetable Production (Level 5 Component Award – QQI 5N2552)

This course is for anyone who wants to deepen their knowledge of the production of food crops, or for those with a general interest in horticulture. Students will be taught the skills to grow and manage a wide variety of fruit and vegetables across all seasons.

Landscape Construction & Maintenance (Level 5 Component Award – QQI 5N1908)

Learn how to construct and maintain hard and soft landscape features. Suitable for those interested in planning and building gardens and care of plants. It is suitable for those interested in pursuing a career in the landscape sector.

Plant Propagation (Level 5 Component Award – QQI 5N2547)

Students will be taught the propagation of a wide range of plants. This course outlines the principles of division, layering & grafting. Learn to take a range of cuttings and carry out bench grafting amongst other things.

Plant Protection (Level 5 Component Award – QQI 5N2546)

Learn how to protect plants and horticultural crops from the harmful effects of weeds, pests and diseases, and to select appropriate safe and sustainable control measures. Designed for anyone involved in the management and care of plants.

Ecology & the Environment (Level 6 Component Award – QQI 6N3624)

This course is designed for those currently employed in any area of horticulture who would like to deepen their scientific and applied knowledge in the area of ecology & environment. The student will learn how to assist in the management of the natural environment.

Horticulture – USA, Diploma


How Will You Benefit?

  • Fast track your career as a horticulturalist with the Horticulture – USA course at the International Career Institute (ICI) – USA
  • Learn the inside secrets of how to become a horticulture pro in months not years!
  • Study a horticulture course that was designed in conjunction with senior members of the profession
  • Free up valuable time, don’t waste time and money travelling to classes
  • Study at your own pace whenever and wherever you are
  • Have access to a tutor who works in the industry you are training for
  • Easy interest free payment plans from as low as $39 per week

Start reaping the benefits by enrolling today!

Career Prospects

Horticulture presents a very diverse range of career opportunities. Many positions require working outdoors with the use of management, science, design, planning and technical skills. The most common areas of horticulture include:

Arboriculture: the care and management of urban trees.

Design: designers work to create gardens that are attractive to the eye as well as practical. Sites typically include private gardens, public parks and reserves, indoor facilities and newly developed housing estates. Designers are frequently self-employed.

Gardens and landscape: gardening make over television shows have never been more popular. Business is booming for those in the landscaping business. It is a wonderful opportunity for self employment or seeking employment with an established landscaping company.

Nurseries: plant growing is the foundation of horticulture. Nurseries range from growing, where new plants grown in special conditions to retail, where sales of plants are made to the public.

Sports turf management: The production and maintenance of special grasses is required for sporting facilities such as golf courses, cricket pitches and football ovals. The industry involves turf grass research, science and technology as well as the production, marketing and sales of turf grass products and services.

Horticulture experts have vast career prospects in various areas of the horticulture industry. Fast track your career in horticulture by enrolling in the ICI horticulture course now!

Organic Growing and Sustainable Living Skills

  • One year full-time Quality and Qualifications Ireland (QQI) Level 5 Course where you choose your modules leading to a certificate in Horticulture
  • You’ll develop organic gardening skills so you’ll be able to grow fruit, veg and herbs the healthy organic way
  • Part time and Distance Learning options are also available

Leading to a QQI Level 5 Certificate in Horticulture.

One Year full-time course. (Part time options available)

This course is one of only a few like it in Ireland and runs from mid September to late May. It features lectures, demonstrations and group discussions, field trips and tours.

The course consists of modules, some of which are nationally written and common to other Education bodies under Quality and Qualifications Ireland (QQI). Many of the modules have been specially written by teachers within the Organic and Co-operative movement. Because it is modular based and nationally certified, students wishing to continue to study further can have their awards recognised at whatever level achieved.

The Modules included in this course are as follows:

Organic Standards and Principles (5N2550)

This modules covers all the basics you’ll need to know about growing crops organically in Ireland – this is especially useful if you are aiming to sell organic certified produce with a symbol.

When you successfully complete this module you will:

  • be familiar with organic principles and practices
  • be aware of regulations and standards in the field of organic production
  • appreciate the role of organic food production within the wider environmental movement
  • have acquired skills in propagation, cultivation, and harvesting of food crops organically
  • appreciate the organic approach to the control of soil fertility, weeds, pests and disease.

An important part of the module is the project where you grow a crop in your garden.

Topics on Organic Production Principles include:

Produce from our orchard and gardens sold in An Siopa Glas

  • The history and principles of organics
  • Organics in Ireland
  • Benefits of organic methods
  • Organic organisations
  • Organic standards
  • Seed saving
  • Rotations
  • Converting to organics, farm inspection and record keeping
  • Financial assistance for organic producers
  • Weed and pest control
  • Local food, marketing, farmers markets and box schemes

Fruit and Vegetable Production (5N2552)

This module goes into the detail of how to grow specific fruit and vegetable crops organically. Together with Soil Science and Growing media it gives you a sound introduction to organic growing. It specifically recommends the best techniques and varieties for growing in Irish conditions.

When you successfully complete this module you will:

  • be capable of preparing and cultivating a site suitable to food crop production
  • have acquired skills in propagation, cultivation and harvesting of food crops
  • be capable of selecting weed, pest and disease control measures appropriate to specific situations

After completing this module you will have acquired the skills necessary to grow and harvest your own vegetables throughout the growing season.

Topics include:

  • Planning, ground prep, yield and year round supplies
  • Overwintering crops
  • Protected cropping: growing in polytunnels and under cover
  • Rotations and the vegetable families
  • Seeds and seedlings
  • Successional sowing
  • Fruit and orchards
  • Harvesting, storing, eating, cooking and selling!

Soil Science and Growing Media (5N2530)

The soil is the most important part of an organic system (except for you)! Organic growing begins and ends with the soil – it’s critical to everything we do – by developing a healthy soil you’ll find you grow healthier crops and that the work of gardening gets easier. This module will give you the skills to understand your soil and how to improve it.

Understanding the soil and fertility is crucial to becoming a good organic grower.

When you successfully complete this module you will be:

  • be familiar with the origins, characteristics and properties of
  • be capable of manipulating the properties of soil to support crop production
  • appreciate the importance of the practices and requirements of soil nutrition and cultivation for organic crop production
  • care and foster a respect for the environment as a finite resource.

Topics include:

  • Soil origins profiles, and Soil Types
  • Soil drainage and erosion
  • Soil water, air and temperature + Irrigation
  • Soil nutrition and soil pH and liming
  • Nitrogen cycle and nitrogen fixation
  • Soil Ecology
  • Organic matter
  • Cultivation, Dig and no dig
  • Compost
  • Organic manures and fertilisers
  • Green manures
  • Mulches
  • Soil-less growing media and liquid feeds

Beekeeping (5N2554)

This module will allow students to become novice beekeepers, giving them all the information they need to set up and maintaining an apiary, to understand the year in the honeybee colony and the annual cycle of work in an apiary. It also covers the importance of:

  • site selection
  • legal methods of sourcing bees within Wildlife Act

By way of theory classes and hands on work on the Organic College’s six beehives The students will identify, through visual inspection, the stages of bee development, different bee types, comb and brood health.

The students will also learn about the common plants used by bees for pollen and nectar and how to ensure a near year round natural food supply as well as how and when to supplementary feed.

Health and safety in beekeeping will be dealt with in detail for both beekeeper;

  • the possible effects of honeybee stings on humans and methods for treating them,
  • select a range of personal protective equipment, maintain it safely and hygienically and
  • procedures to create and maintain a safe working environment including safety standards regarding lifting, carrying and handling plants, tools and equipment.

And bees;

  • the threats to a bee colony
  • recognising the symptoms of common bee bacteria, viruses, fungi and parasites
  • methods for dealing with bee disease

During the year students will have the opportunity to

  • assemble a frame,
  • use hive tools,
  • manage the beehive through the year as well as
  • extract honey and beeswax from combs safely and hygienically, including straining and bottling of honey.

Plant Protection (5N2546)

This module goes hand in hand with learning to grow your own organic vegetables.

Part of being a successful gardener is learning how to protect your plants from pest and
disease. After completing this module you will have the knowledge and competence to
identify a wide range of weeds, plant pests, diseases, disorders and the control measures
appropriate to protect your plants from their devastating effects.

Topics for Plant Protection include:

  • Characteristics of common plant pests including insects, other arthropods, molluscs, nematodes, birds and mammals
  • Characteristics of disease causing agents including fungi, bacteria and viruses
  • Characteristics of the causal agents of non-pathogenic plant disorders
  • Identification of a wide range of horticultural pests and diseases including their symptoms, type of damage and control measures
  • Effects of reproduction, spread and control of weeds on an organic holding
  • Dangers associated with the use of synthetic pesticides and herbicides
  • Correct application and storage of natural pesticides and herbicides

Plant Science (5N2528)

In order to grow plants well it is crucial to have a good understanding of how they grow. This module covers basic botany as it applies to organic growing. You’ll be amazed how much easier it is to care for your plants once you understand how they grow. You’ll know more about when to water them, how best to care for them and their nutritional needs at different points in the life cycle.

When you successfully complete the Plant Science module you will:

  • have acquired a broad knowledge and understanding of plant structures, growth and development
  • be familiar with the basic living processes of plants and their relationship with environmental factors
  • acquire skills of observation, investigation and recording
  • be familiar with the characteristic features of a wide selection of plant life

Topics for Plant Science include:

  • Classification of plants
  • Plant Cells
  • Plant Structure: roots and stems, leaves and flowers
  • Plant transport systems, Respiration and Transpiration
  • Plant Life cycles and Reproduction
  • Plant hormones
  • Genetics and DNA

Plant Identification and Use (5N2527)

This module will give you the knowledge of identifying a wide variety of trees, shrubs and other plants. You will also be able to recognise them by their botanical / Latin names.

You’ll learn how to select appropriate plants for different conditions and be able to plant in a variety of situations. Developing a basic knowledge of what plants are around you and what their names are so you can communicate with other growers is very helpful for all growers.

When you successfully complete this module you will:

  • be capable of identifying a wide variety of trees, shrubs and other plants
  • be familiar with the characteristic features of a wide selection of plants
  • be capable of selecting appropriate plants for different situations
  • demonstrate ability to plant in a variety of situations
  • be familiar with techniques used to control weeds, pests and diseases.

Topics for Plant Identification include:

  • Botanical names and plant nomenclature
  • Plant parts and names
  • Trees
  • Weeds
  • Vegetables, Herbs and Fruit
  • Wild Flowers
  • Planning a garden

Applied Permaculture (5N1553)

This module will introduce the student to the fundamental principles behind Applied Permaculture, where natural ecosystems are taken as the model for human habitat and landscape design. Practically based the student will learn the basics in ecological building design and natural building methods, water management and basic aquaculture systems, designing sustainable woodlands, forest gardens and intensive food gardens as well as the application of permaculture to broad-scale agriculture. The student will through the course of the year learn how to produce a permaculture design for a property and will develop hands on skills appropriate to sustainable living.

Learners will be able to:

  • Investigate ways in which permaculture can contribute to the ‘greening’ of local communities
  • Explore the principles and ethics of permaculture
  • Examine the relationship between organic gardening, bio-dynamics and permaculture
  • Distinguish between the range of sustainable building materials and techniques
  • Explore the principles of green design
  • Examine how permaculture principles can be applied to broad scale agriculture
  • Summaries the importance and potential of aquaculture in a permaculture system
  • Explore the range of potential uses for a well designed woodland
  • Interpret the principles of permaculture in the context of a food garden
  • Comment on a range of techniques and practices appropriate to an intensive food garden

Horticultural Mechanisation (5N2559)

The purpose of this award is to equip the learner with the knowledge, skill and competence to operate and maintain a range of hand and powered horticultural machinery and implements and also how to use them efficiently in Crop Production.

Communications (5N0690)

Communication skills are highly valued in the workplace but this module extends beyond exclusively vocational needs, recognising that the acquisition of these skills is a life-long process, and central to personal, social and professional development and fulfillment.

This module is a requirement for all QQI courses and should be taken if you are completing the full certificate. You will need to do a presentation, write sample letters and create other forms of visual communication.

This module does not normally require too much work and you will complete it quite quickly.

Topics include:

  • The written word
  • Non-verbal communication
  • Interpersonal communication
  • The Spoken Word (listening, speaking, dialogue)
  • Interviews
  • Giving Presentations
  • Groups and meetings
  • Communication technology (phone, computers)
  • Mass Communication – the media

Work Practice (5N1433)

If you wish to complete a full certificate you will need to complete work placement on an organic horticultural holding of your choice. This can be with a grower or organisation that is near to you or of interest to you. We have contacts with some of the best organic growers in the business and can help with a choice of host.

You will also need to keep a garden diary based on work you do at your own garden, during practical days at the college and farm walks or gardens visited throughout the year.

Keeping a garden diary is good practice for all gardeners and we encourage students get in the habit of doing this during the first year – you’ll then have already completed some of the work Practice module before starting year two. Another good time is over the summer when there is plenty going on at farms and gardens. You will need to take photos and notes of what you did and hand in a report on how the placement went.

I want to find out more

Register your interest using this form and we’ll send you more information.

Or there are more details on the main course page.

The Royal Horticultural Society’s Level 2 Certificate in the Principles of Horticulture is an internationally recognised qualification designed to inform those just starting out in gardening as well as to build upon pre-existing knowledge. It can often lay the foundations for a complete career change.

Learning with Experts is an approved centre for studying with the Royal Horticultural Society (RHS), making this qualification all the more attainable. All the knowledge required to pass the final exam has been gathered here in a collection of inspiring courses. Through the power of online group learning, we bring this course to you and help you to benefit both from internationally acclaimed horticulturalists, and from others working towards this qualification.

Purchasing the full collection is the most economical way of readying yourself for the final exam – saving you 20% of the price of buying module by module. However feel free also to pick and choose the areas that interest you if you simply want the pleasure of horticulture and do not want to achieve the overall RHS Level 2 qualification.

More information about the qualification can be found here.

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