Cultiwool 150x150x142mm Big Block Donut - 38x40mm - 1pc

Product detailed description

Cultiwool Original is a our trusted stone wool substrate line.

Cultiwool Original Growing Blocks provide a stable and steerable root environment for professional horticulture. Designed for uniform water distribution, balanced air-to-water ratios, and consistent root development, these blocks support predictable crop performance across all cultivation stages. Their proven fiber structure and integrated drainage features enable precise irrigation control, uniform plant growth, and reliable results in both medicinal and vegetable production.

Cross-groove base design – Ensures efficient drainage and optimal oxygen availability in the root zone.

Homogeneous fiber structure – Supports even water uptake and stable root development.

High dimensional stability – Maintains block shape and performance throughout intensive crop cycles.

Excellent re-wetting capacity – Enables fast and uniform water absorption after dry periods.

Clean and inert substrate – Provides a hygienic, pest-free root environment for reliable cultivation.

The Cultiwool substrate blocks are provided with drain grooves at the bottom to improve the waterflow under the block. This is especially useful when the substrate blocks are placed on cultivation tables and concrete floors. Another benefit of the drain grooves under the block is that it will limit the contact surface with the ground. This will avoid bringing deseases in to the plant via weak roots often in combination with too high temperatures.