THE GROWERS GUIDE TO COCO COIR & SOIL

Description

THE GROWERS GUIDE TO COCO COIR & SOIL is the comprehensive reference book that gives UK cultivators the foundational knowledge needed to master the two most popular growing media for indoor cultivation — coco coir and soil — understanding the unique properties, nutrient management approaches, and best practices that each substrate demands for optimal results. We have been recommending this guide to UK growers since 2017 as an essential first resource for anyone building their cultivation knowledge base.

Why Understanding Your Growing Medium Is Fundamental to Cultivation Success

The choice of growing medium is one of the most consequential decisions a grower makes — it determines the watering frequency, the nutrient programme required, the root zone oxygen levels achievable, and the overall growing pace and style. Coco coir and soil behave very differently as growing media: coco is a near-inert, highly aerated substrate that requires full mineral nutrition from the grower and rewards more frequent watering with fast, responsive growth; soil is a complex, buffered medium with inherent nutrient content and biological activity that moderates plant feeding and enables a more forgiving growing approach. Growers who understand these distinctions — and who know how to manage their chosen medium’s specific chemistry and biology — consistently produce better results than those who apply the same approach to both. This guide bridges that knowledge gap with clear, practical explanations of both media’s properties and management approaches.

What the Guide Covers and How to Apply It

The guide covers coco coir and soil substrate selection, pre-treatment of coco, nutrient programme design for each medium, watering frequency and irrigation management, pH management in coco versus soil, common deficiency and toxicity symptoms, and harvest and post-harvest handling. It is appropriate for complete beginners and experienced growers looking to formalise and extend their substrate knowledge. Pair with the appropriate growing media — CANNA Coco Professional Plus or Mills Coco Peat for coco, or a premium peat-based growing mix for soil — available in our growing media range, alongside the nutrient systems suited to each medium. Browse our full range of growing media, nutrients, and cultivation guides for a complete growing knowledge and product resource.