Coconut fibre — a sustainable growing medium derived from the outer husk of coconuts. Used as a peat substitute in potting mixes and seed raising. Excellent water retention and aeration properties.
Coir, also known as coco peat or coconut fibre, is produced from the fibrous husk surrounding coconut shells. In Australia, it has become increasingly popular as gardeners seek sustainable alternatives to traditional peat moss, which depletes natural wetlands. The material is pH-neutral to slightly acidic, making it suitable for most Australian plants across various climate zones.
When used in potting mixes, coir retains moisture exceptionally well—beneficial during dry Australian summers—whilst maintaining good drainage to prevent root rot during heavy autumn and spring rains. It's particularly valuable in arid and semi-arid zones (zones 10-12) where water conservation is critical. You can purchase coir blocks and loose products at Bunnings and specialist nurseries, often compressed into convenient bricks that expand when hydrated.
Coir works excellently when mixed with perlite or coarse sand for container plants, or incorporated into garden beds to improve clay soils common in many Australian regions. It's especially useful for growing acid-loving plants like azaleas and camellias. The material is biodegradable and can be composted after use, completing the sustainable cycle.
One consideration: ensure you purchase quality coir products, as some lower-grade varieties may contain excess salts. Always hydrate and flush coir before use in sensitive seedlings or indoor plants.