Plan the site and access
Choose a position suited to your crops. Make the bed reachable without standing on the growing area, and choose a height that works for you. Check the condition and drainage of the ground beneath.
← What are you growing?
COIROLOGY GROWING GUIDES
Raised beds
A raised bed creates a defined space for roots, watering and soil care. Plan its depth and filling around what you want to grow and what lies beneath.
Plan access · Assess the base · Calculate the fill volume
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A PRACTICAL GUIDE
Prepare. Plant. Care.
Work out the volume
Measure internal length, width and fill depth. In metres, multiply these together and then by 1,000 for litres. Allow for settling and follow the actual expanded-volume guidance of any compressed component.
Choose the full blend
Use suitable topsoil and well-matured organic matter as the foundation for most open-bottom beds. Coir chips may form part of a deliberately designed blend, but are not a general remedy for poorly drained ground. Hydrate coir components and mix evenly; raised planters on a hard base need their own drainage plan.
Maintain the growing layer
Water according to the crop and weather. Review fertility, add appropriate organic matter over time and avoid compacting the bed by walking on it. Select feeding around the crops rather than assuming coir supplies nutrients.
CHOOSE FOR YOUR APPLICATION
Products to consider
Coir is an optional component of a planned bed blend. Choose the quantity after calculating the bed volume and the proportion of coir required.
Blend component
Coco Coir Block
5kg · approx. 75L
A manageable quantity for incorporating coir into a planned soil blend. Most open-bottom beds still need suitable topsoil and mature organic matter.
Requires a suitable feeding programme
£15.60
View product details →
Blend component
Coco Coir Blocks
4 × 5kg · approx. 300L
For larger projects with a calculated coir requirement. The approximately 300L is the coir component’s expanded volume, not a recommendation to fill a bed with coir alone.
Requires a suitable feeding programme
£58.10
View product details →Optional amendments & specialist choices
Add or substitute these only when their role fits your plant, complete blend and care routine.
Contains feed
All Purpose Compost Block
5kg · approx. 75–80L
For suitable container-style raised planters or specific planting mixes. It is not a replacement for the soil foundation of every permanent open-bottom bed.
Follow the pack’s feeding guidance
£15.99
View product details →Not sure which mix to choose?
Tell us your plant, container and growing conditions. We can help you understand the available product options.
Ask a product question →KEEP LEARNING
Understand growing with coir →Explore peat-free growing →RHS: making a raised bed ↗Independent further reading. Product selection is Coirology’s guidance; it does not imply endorsement by the linked organisation.