Cellulose Grow Mat 500 × 240mmPack of 270

**A reliable, plant-based growing substrate cut to 500 × 240mm for consistent microgreen crops.** This 270-piece pack suits commercial producers, market gardeners, and dedicated home growers who run trays continuously.

Cellulose mats are the go-to substrate for microgreens precisely because they do very little to interfere with flavour or root development. At 500 × 240mm, each mat drops straight into a matching propagation tray with no trimming required. That uniformity matters when you are seeding dozens of trays in a single session.

The cellulose fibre absorbs water quickly and releases it steadily to germinating seeds. This buffering effect reduces the risk of dry patches forming under dense seed coverage. Crops like sunflower, pea shoots, and wheatgrass benefit most, as they demand consistent moisture in the first 48-72 hours after sowing.

At 270 mats per pack, you have enough substrate for a substantial rotation without repeated restocking. For growers running multiple shelving units under LED panels, this pack size aligns well with a weekly or fortnightly harvest cycle. If you need multiple packs regularly, contact us for graduated volume pricing.

Pair these mats with blackout humidity domes during the germination phase to retain moisture and encourage even sprouting. Once shoots are established and moved under your grow lights, the mat continues to support the root mass cleanly through to harvest. After cutting, spent mats compost readily, keeping waste to a minimum.

Grower’s Note: Pre-soak the mat briefly before seeding - 30 seconds in clean water is usually sufficient. Squeeze out excess so the mat is moist but not waterlogged. Over-saturated mats can encourage mould under the seed canopy, particularly with mucilaginous seeds such as basil or chia. Good airflow above the tray during the early growth phase is the single most effective preventative measure.

Priced at £275, with free UK delivery.