Rock wool growing slab / 500×250×40mm / leafy greens, strawberries, and herbs

Description   

This thin rock wool growing slab measures 500×250×40mm. The 40mm thickness is specifically designed for shallow-rooted crops in planar cultivation, such as leafy greens, strawberries, and herbs. The flat slab format is suitable for spreading on growing racks or ebb-and-flow benches, utilizing rock wool's capillary action for bottom watering. The thin structure reduces substrate volume while maintaining good water retention and aeration, making it an ideal choice for leafy green hydroponics and late-stage nursery transition.

Application   

Planar hydroponics of leafy greens

Bottom water-absorbing layer in elevated strawberry cultivation

High-density cultivation of herbs  (basil, mint, cilantro)

Hardening slab for late-stage seedlings before transplanting from plug trays

Standardized cultivation surface for uniformity trials in research greenhouses

Specification

Features   

Thin slab design  (40mm) reduces rock wool usage, lowering cost, suitable for single-use or short-term cultivation.

Easy to cut into any shape to fit various growing trough sizes.

High capillary water uptake efficiency, maintaining uniform moisture distribution when used with ebb-and-flow irrigation.

Seeds  (e.g., microgreens) can be sown directly on the surface without additional medium.

After use, can be crushed as a soil water-retaining agent, environmentally recyclable.