Coco Coir

Coco coir (also known as coco, coir, or coconut fibre) is a natural growing medium derived from the fibrous outer husk of coconuts. It is a by-product of the coconut processing industry and is widely used in hydroponics and soil-less cultivation.

Coco coir is available in several forms:

• Coco pith / coco peat: Fine, spongy material with high water retention
• Coco fibre: Longer fibres that improve aeration and drainage
• Coco chips: Larger pieces that retain moisture while providing significant air pockets
• Mixed / buffered coco: Pre-treated blends designed for direct nutrient feeding

Key properties:

• pH: approximately 5.8-6.5 (near ideal for most crops)
• High cation exchange capacity (CEC) - especially for calcium and magnesium
• Excellent water retention balanced with good air-filled porosity
• Naturally resistant to fungal and bacterial growth
• Renewable and biodegradable

Raw coco coir contains naturally high levels of potassium and sodium and has a high affinity for calcium and magnesium, which means these nutrients must be provided in excess when using unbuffered coco. Most commercial coco products are buffered with calcium and magnesium to overcome this before use.