Coco Blocks & Coco Grow Bags for Hydroponic & Soilless Growing
Coco blocks and coco grow bags provide pre-formed, ready-to-use coco coir formats that eliminate the preparation steps required when working with loose coco or compressed bricks. They are particularly well-suited to drip-irrigated production systems where individual, pre-shaped grow units simplify plant spacing, irrigation placement, and end-of-cycle media disposal.
Coco Blocks: Compressed & Buffered for Immediate Use
Coco blocks are compressed coco coir in various sizes — from small 4-inch cube blocks for individual plant production to large commercial blocks for high-density greenhouse growing. Quality coco blocks from Coirgro, Char Coir, and similar brands are pre-washed and pH-buffered to a target pH of 5.5–6.5, eliminating the pre-soaking and buffering steps required with unbuffered coco. Compressed blocks expand to their full volume when hydrated — a convenient format for shipping and storage that reduces volume and cost compared to pre-expanded loose coco. Expand blocks in pH-adjusted water (5.8–6.0) with Cal-Mag added before use to prime the cation exchange sites and ensure calcium and magnesium availability from the first irrigation.
Coco Grow Bags for Commercial Slab Production
Pre-filled coco grow bags (slabs) are the standard format in commercial greenhouse tomato, pepper, cucumber, and herb production worldwide. Each bag contains a pre-formed volume of buffered coco coir in a polyethylene sleeve — placed on growing benches or floor channels, each bag supports one or two plants fed by a dedicated drip stake. VidaWool and Coirgro coco slabs are available at Hydrobuilder in standard commercial sizes. Slabs eliminate the labor of filling individual containers, create uniform substrate volume per plant position, and simplify end-of-cycle cleanup by removing each bag as a single unit.
Browse the full coco coir collection for all formats and brands, explore drip systems for slab irrigation, or pair with Cal-Mag supplements for coco-specific nutrition. Fast shipping.
