The B.E.S.T. in Horticulture Group

RHS Level 2 Certificate in the Principles of Plant Growth and Development

You can start studying this online course at any time during the year, taking RHS examinations which run in February and June to achieve your qualification.

The overall  cost of the course (including RHS registration and fees for the online exams) is £760.

Please note that in 2026 we need to implement our first increase in online course prices since the new RHS syllabus was introduced in 2022. On 1 March 2026 the total course cost will be £800.

Click on the + icons below to see full details of the course.

There are no pre-requisites for entry to this qualification.

 

The new RHS Level 2 Certificate in the Principles of Plant Growth and Development (2022)  consists of two units, each covering 4 topics:

Unit 1: Plant Science I, Plant Health, Plant Nutrition, Plant Specification

Unit 2: Plant Science II, Planting Styles, Horticulture and Society, Biodiversity.

There are also four 'Qualification-wide Outcomes' (QWO) which are linked to both units, and also to the Level 2 Practical course.  These are Health and Safety, Sustainability, Best Practice and Equality and Diversity.

In line with all of the new RHS qualifications, the requirements in each topic of the syllabus are now constructed around ‘assessment outcomes’ (AOs) which define the way in which you will demonstrate your knowledge, understanding and skills of making links between relevant topic areas,  under test conditions.

The AOs use a ‘progressive mastery’ model for each topic area. These qualifications have three broad categories of assessment outcomes, which are:

AO1 – knowledge recall of scientific ideas, processes, techniques, procedures, and making correct use of terms, symbols and units of measurement
AO2 – application of knowledge and understanding of concepts, theories, facts to different situations and contexts through presentation of reasoned explanations and analysis and interpretation of information and ideas
AO3 – application of knowledge and understanding in an integrated and holistic way in order to reach conclusions and make judgements and recommendations

Course materials  provide the underpinning information required for the assessment outcomes, examine their progressive applications in aspects of horticulture, and make links between topics and the QWO.

Sample assessments and past papers can be used for practice.

You can download the syllabus for the new RHS Level 2 Certificate in the Principles of Plant Growth and Development (2022) here.

The RHS puts it simply: ' All life on earth is directly or indirectly reliant on plants either from a nutritional perspective or increasingly ... through a deeper connection linked to mental health and wellbeing. People need plants. Plants need horticulturists.'

This new Level 2 Certificate covers the core scientific principles underpinning horticultural practices, and looks at how horticulture benefits society. It also considers horticulture's role in preserving biodiversity, introducing more sustainable practices and reducing our carbon footprint to protect the natural environment.

The qualification is designed to help you develop the level of knowledge of plants and horticultural practices which is considered essential by the horticultural industries, and equip you for employment within the horticultural sector. It can help with career development if you already working in the profession, but also provides a springboard for a change of career into horticulture.

Delivery:

You can begin to study this course at any point in the year.

Online learning gives you flexible study  - you can log in to your 'virtual classroom' for each unit and study at home, or whenever and wherever it suits you. You can download most of the course materials, print them out if you prefer, or take them with you on a tablet on your daily commute.

Click here to enter the teaching website to see some examples of course materials in a sample online classroom ( you will be asked to log in as a guest).

Assessments:

The two units will each be assessed by an examination taken online on a special RHS exam platform. You must achieve at least the pass mark (50%) in each unit to be awarded the qualification.

If you fail an exam, there are no limits on how often you can retake it, but you will need to pay another RHS examination fee. 

Examination 1 will cover Unit 1 (topics 1.1-1.4) and Examination 2 will cover Unit 2 (topics 2.1-2.4). 

Examinations:  exams for each unit  take place in February and June each year.

Examinations last 120 minutes (2 hours). Each consists of three sections: 

  • A , 20 'forced-answer' questions (multiple choice), 20 marks
  • B, a series of short-answer questions, 50 marks;
  • C, choice of 2 from 4 longer questions, 2 x 15 marks.

Your final grade for the overall qualification will be calculated by combining marks for each exam:  grades are: Pass (50-64%), Merit (65-79%). Distinction (80%+).

If you study this course, you commit to taking the examinations as this is now an RHS requirement.

You pay the fees for registration with the RHS and for two Unit exams at the start of your course, and we pass these on to the RHS as soon as you are registered. 
Online enrolment with BEST gives you access to the online classroom and tutor support for 18 months; during this time there will be at least three opportunities to take your exams.
The RHS expects that it will take no longer than 24 months to complete a Certificate, even if you should need to retake both your exams. As you can only be entered for exams by a centre, BEST will arrange exam bookings if you need them for a further two exam sessions during a 6-month ‘grace period’ after the end of your enrolment.   If you want to continue tuition and support for this period you can extend your enrolment for six months.

A matrix suggesting exam dates from each month of starting enrolment can be seen here and the RHS exam timetable (which covers all qualifications) here.

Past examination papers and examiner comments are provided for practice, as well as end-of-topic papers which your tutor will mark for you. 

When you have passed exams in both units, the Royal Horticultural Society will award you the RHS Level 2 Certificate in the Principles of Plant Growth and Development (2022) - at either Pass, Merit of Distinction.

Tuition: Online course materials and tuition for both units costs £500.

RHS fees and exam administration: £260.  In the month that you enrol, the RHS will invoice us for registration and examination fees. We cannot enrol you for the course without charging you these fees.

This means that the total course cost is  £760. 

Click on the course option below to enrol.

You can enrol and buy the course on the website using PayPal;  you do not have to have a PayPal account, this allows you to use a debit or credit card as a 'guest' to pay securely. 

You can also use Paypal 'Pay in 3' to spread the payments. 

When you enrol, your username and password should be emailed to you automatically; please check spam filters if you do not see an email within an hour, and contact us if nothing has arrived overnight. 

There is no compulsory course work;  but you will be given the opportunity to try practice questions to prepare yourself for the examinations and encouraged to use tests at the end of each Topic to check your understanding as you work through the course. You can also complete a workbook for each Topic to consolidate your knowledge. Your tutor will give you help and support through your preparation for your two exam sessions and you have access to the classroom and to online resources for 18 months.

Our candidates have enjoyed a good level of success in these first new RHS examinations.

You can go on to study the RHS Practical Certificate, and work towards the RHS Level 2 Certificate in the Principles and Practices of Horticulture.

An RHS Level 2 qualification is well respected in the horticultural industry and can be the first step in changing to a career in horticulture.

If you want to continue developing your horticultural knowledge with RHS theory courses, you can move on to the RHS Level 3 Certificate in Plant Growth, Garden Planning and Applied Propagation. 

 

Full CourseLocationPrice
 RHS Level 2 Certificate in the Principles of Plant Growth and DevelopmentHome£760.00
Course extensionPrice
6 month extension to course enrolment£150.00
  
  

Sorry, there is currently no availability for this course, for further information on when there will be availability for this course, please feel free to contact us.

NEW RHS Level 2 Certificate in the Principles of Plant Growth and Development​

Price range: £150.00 through £760.00

SKU: N/A Categories: ,

Description

Details of the costs and examination format are outlined below under  ‘costs and venue’ and ‘how is it delivered and assessed?’ Please read this carefully as there are major changes from the way the current RHS qualifications are structured and organised which affect how we can deliver the qualifications and how you will be able to study them. If you prefer, you can watch/listen to a short voiced powerpoint on how the course for the new Certificate is arranged, and on how the exams work.

The RHS puts it simply: ‘ All life on earth is directly or indirectly reliant on plants either from a nutritional perspective or increasingly … through a deeper connection linked to mental health and wellbeing. People need plants. Plants need horticulturists.’

This new Level 2 Certificate covers the core scientific principles underpinning horticultural practices, and looks at how horticulture benefits society. It also considers horticulture’s role in preserving biodiversity, introducing more sustainable practices and reducing our carbon footprint to protect the natural environment.

The qualification is designed to help you develop the level of knowledge of plants and horticultural practices which is considered essential by the horticultural industries,  and equip you for employment within the horticultural sector. It can help with career development if you already working in the profession, but also provides a springboard for a change of career into horticulture.

The course gives you an opportunity to develop transferable skills such as problem solving, implementing management plans / programmes, and communication as part of your applied learning,  and to progress to further learning opportunities at Level 3, and then to higher education, career advancement or entry in the horticultural industries at a more advanced, technical level.

There are no pre-requisites for entry to this qualification.

Additional information

Options

(DL) RHS Level 2 Certificate in the Principles of Plant Growth and Development (Full Course), (DL) 6 months extension to Level 2 course enrolment