Roots Organics Soilless Coco Mix, 1.5 Cu Ft | pH 5.5 to 6.5

What Goes Into Roots Organics Coco Coir Soilless Mix

The ingredient list runs longer than the name suggests. Perlite and pumice carry the aeration while the coco fiber carries the water. The rest is amendment: earthworm castings, bat guano, volcanic rock dust and volcanic ash. Kelp meal and greensand round it out. Three mycorrhizal species are included as well, Funneliformis mosseae, Rhizophagus intraradices and Septoglomus deserticola. The finished pH is 5.5 to 6.5, which sits inside the window where most nutrients stay available. The fibre itself is the part worth attention. It is composted past twenty-four months and washed repeatedly before it reaches the bag. Long composting breaks down the lignin that makes fresh coir hold nitrogen away from the plant. Repeated washing is what strips out the sodium and potassium. Extra long fibre is used rather than fine pith, which improves drainage and keeps the mix from packing down over a long flower.

Feeding a Soilless Media That Behaves Like Inert Coir

Here is the part the bag does not announce. Aurora tells growers to treat this as an inert medium and to begin feeding within two to three days of transplanting. That instruction sits oddly beside an ingredient list carrying guano and castings, and both things are true at once. The amendments build biology and structure rather than carrying a crop through vegetative growth unfed. A grower who treats this like a hot organic soil and waits a fortnight will watch the plants go pale. The fungi need a living root to colonise and a feed to work with. Start the schedule early and stay on it, because a washed coir base holds very little in reserve. The bag holds 1.5 cubic feet and weighs 26.8 lb, which is a one-handed lift for most people. It measures roughly 27 by 18 by 5 inches lying flat. The starting EC is very low. Anyone running tight nutrient control should meter a runoff sample on the first watering rather than assume a starting point.

Key Features

• Base: Extra long coco fiber rather than fine pith, with perlite and pumice
• Coir preparation: Composted past twenty-four months and washed repeatedly
• Amendments: Earthworm castings, bat guano, kelp meal and greensand
• Minerals: Volcanic rock dust and volcanic ash are both in the blend
• Biology: Three mycorrhizal species inoculate the medium at planting
• pH: Finished mix sits between 5.5 and 6.5
• Feeding: Treat as inert and start feeding two to three days after transplant
• Bag: 1.5 cubic feet, weighing 26.8 lb and measuring 27 by 18 by 5 inches

Technical Specifications