RHS Theory - Principles of Horticulture

RHS Level 2 Certificate


RHS have redsigned their RHS Level 2 Diploma for those wanting a route to employment in professional horticulture or further personal interest. Designed to be studied individually on a part-time basis they're flexible to any schedule. The RHS Level 2 Diploma is awarded to those that who successfully achieve the RHS Level 2 certificates Practical Horticulture and Prinicples of Plant Growth and Development. 

RHS Principles of Principles of Horticulture

This theory based qualification provides a comprehensive understanding of the principles that underpin professional practices and theories which support horticulture techniques. In essence the Science behind the Plants.  Each Unit is assessed by written examinations throughout the year.  The course covers topcs that include:

Topics include

  • Plant Botany and Physiology;

  • Plant Science;

  • Plant health and Nutrition.


Course details

Dates & Location

Please select your preferred date to apply:

Wednesday 18th September 2024 - Wednesday 25th June 2025

Friday 20th September 2024 - Friday 27th June 2025

If you wish to be informed of any future dates regarding this course then please register your interest here.


1 day for 36 weeks

9:30 - 16:00



This course could be FREE.  

If you are unemployed and in receipt of state benefits or working and your income is under £20, 319 you could be entitled to financial support towards the course fees or even study for free.

Entry Requirements

An existing horticultural qualification is strongly recommended or related industry experience.



One Garden Brighton

The recent restoration of the walled garden has been managed by Plumpton College. One Garden Brighton is the home of the college’s horticultural centre of excellence, a space for training and education. The campus buildings are nestled within the walls itself and you will see students designing, planting and maintaining the grounds as a showcase for innovation.

One Garden Brighton is place for everyone, a garden made for people. We are a part of our local community; a place to connect, improve wellbeing and discover something new. We support local producers, people and nurture local networks focused on enriching all who visit.

Future Opportunities

These RHS Courses are suitable for:

  • Those wishing to enter horticultural employment for the first time;
  • For those who are already working in horticulture who want to develop their skills;
  • And for those who wish to progress to further horticultural study at level 3.
  • It is also suitable for those who wish to enter horticulture as a change of career and are seeking the necessary foundation skills.

After completing the RHS Level 2 Diploma you can further complete your RHS Practical Horticulture Skills Level 3.

Other courses that may interest you

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