Horticentre - Horticultural Supplies Specialists New Zealand  - For Growers, By Growers

Growing Media - Growcoir

Benefits of Growcoir® include:

  • lightweight
  • can be compressed into a variety of shapes
  • decomposes slowly due to its high lignin content and large particle size so can be reused for several crop cycles
  • uniform and consistent
  • excellent porosity and water holding capacity that can be adapted to your crop
  • natural and renewable resource easily disposed of without any environmental concerns

Worried about salt levels?

High salt levels can be an issue with coconut fibre-based substrates but this does not apply to Growcoir®. The coir used in Growcoir® products has been carefully washed and dried multiple times to remove excess sodium before blending, resulting in an extremely safe and consistent high-quality product.


The range

Growcoir® slabs, GreenStarter® bags, Growcoir® coco blocks

Growcoir® slabs

A blend of 15 mm size coco peat and crushed coco chips. The selected raw materials are blended and compressed into 8:1 ratio to make slabs for the required size. Slabs are packed in UV stabilized (for two years) co-extruded bags.

Growcoir® 100

  • coco peat (90%) and crushed coco chips (10%)
  • pH range - between 5.5 to 6.2
  • High Water Holding Capacity (between 7 to 7.5 l/kg) and it reduces frequent irrigation.
  • Moderate Air Filled Porosity (about 20%) helps to reduce loss of water.

Growcoir® 200

  • coco peat (80%) and crushed coco chips (20%)
  • pH range - between 5.6 to 6.8
  • Moderate Water Holding Capacity (between 6.5 to 7.0 l/kg) and it reduces frequent irrigation and water logging condition
  • Moderate Air Filled Porosity (about 21-22%) helps to reduce loss of water and allows for better aeration.

Growcoir® 300

  • coco peat (30%) and crushed coco chips (70%)
  • pH range - between 5.6 to 6.8
  • Moderate Water Holding Capacity (between 5.0 to 5.5 l/kg) and it reduces frequent irrigation and water logging condition.
  • Comparatively high Air Filled Porosity (about 24-26%) and it facilitate a better aeration for the roots.

Growcoir® 400

  • 100% even crushed coco chips product
  • pH range - between 5.6 to 6.8
  • Comparatively low Water Holding Capacity (between 4.5 to 5.0 l/kg) and it allows excellent drainage to reduce the water logging condition
  • High Air Filled Porosity (about 26-28%) and it facilitate a better aeration for the roots. Ideal porosity for maximum root growth.

GreenStarter® bags

The GreenStarter® bag is available either as a traditional cocopeat / cocochip blended mix, or just cocochip to allow
better management of your water.
These bags are well suited to all types of cut flower and vegetable crops.

Growcoir® coco blocks

These blocks are well drained, have excellent air to water porosity, and have the ability to hold moisture and nutrients for long term supply to plants. With the addition of water, the coir expands very quickly and increases the volume 8
to 9 times.

  • Coco block Standard Coir (4.5 kg): a 1 00% peat block used mainly to blend into soil or potting mix or for seed-raising.
  • Coco block Gerbera (4.5 kg): a 1 00% crushed coco chip blend which is washed but not buffered.
  • Coco block Husk Chip (4.5 kg): a 1 00% S2 chip block, ideal for repotting orchids.