Combine organic growing systems with fundamental horticulture knowledge.
Learn the principles and practices of horticulture first and then learn to grow plants using organic methods.
Understanding established methods of plant growing and how main stream horticulture deals with this eg. the pesticides, herbicides, fertilisers and general growing methods used, is of fundamental importance for a shift to organic growing.
To be truly informed, you need to know all the traditional and 'accepted' methods of plant growing as well as organic methods. This knowledge enables you to make informed and important decisions (for example) during farm conversion and understand what impact 'conventional' farming has on the land you farm, and on the health of the community and the ecology. At the very least it will enable you to understand, and convey to others, why you prefer organics as your chosen method of plant culture.
This course is similar to other VHT002 horticulture certificates in its introductory (core) units, but devotes 50% of the course to topics specifically related to organic growing. 
The Core Units comprise fifteen lessons covering: Introduction to Plants, Plant Culture, Soils and Nutrition, Plant Identification and Use & Pests, Diseases and Weeds.