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Original Growing Blocks

Reliable Performance for Strong, Uniform Growth

Cultiwool Original Blocks provide a stable and uniform environment for root development, ensuring consistent plant performance throughout the growing cycle. Engineered for optimal water and air balance, they support vigorous root expansion and seamless transplanting from plugs to slabs. Their proven reliability makes them the trusted choice for growers seeking dependable results across a wide range of crops and cultivation systems.

Growing blocks

Cultiwool Original Blocks are designed with precision to support healthy, balanced root development from the earliest stages of growth. Their cross-groove base ensures efficient drainage and oxygen supply, preventing excess moisture buildup and promoting a strong, active root zone. The integrated donut ring improves irrigation uniformity, allowing water and nutrient solutions to spread evenly throughout the block for consistent EC and moisture distribution. Made from high-quality stone wool with excellent dimensional stability, Cultiwool Original Blocks maintain their structure and performance even through intensive crop cycles, helping growers achieve uniform growth, predictable results, and maximum productivity with every cultivation.

Advantages

All you need to know about Cultiwool Original Growing Blocks

Stable structure supports strong and healthy root development. Delivers consistent moisture distribution across the block. Cross-groove base ensures optimal drainage and airflow. Donut ring design promotes uniform irrigation and EC balance. Compatible with a wide range of slabs and growing systems. Provides a smooth transition from plug to final cultivation stage.

Drain grooves and donut ring

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.

As first in the industry, Cultiwool will provide the substrate with a donut ring as well, a water chamber around the plug hole to place your drippers. With the donut ring you will achieve an even more homogeneous distribution of the water throughout the block. A welcome second advantage is that you can not make any mistake anymore with the positioning of the drippers in the block.

Our growing blocks come in different dimensions and packaging units.

Downloads

Download the Cultiwool Original Blocks product leaflet

Cultiwool Leaflet Download

Our products

Clay Paddles

The Cultiwool Original Clay Paddles offer a controlled, inert rooting medium ideal for germination and early growth, giving plants a clean and stable start.

Clay Paddles

Mapito

Mapito is a coarse-structured stone wool substrate offering excellent airflow, water retention, and a balanced air-to-water ratio for robust root development in hydroponic systems.

Mapito

Original Growing Slabs

Cultiwool Original Growing Slabs provide reliable performance and uniform growth, ensuring plants thrive under consistent water, air, and nutrient conditions.

Original Growing Slabs

Original Starter Plugs

Cultiwool Original Starter Plugs provide the perfect start for young plants, offering uniform water distribution, stable structure, and optimal conditions for fast and healthy root development.

Original Starter Plugs

Prime Growing Blocks

Cultiwool Prime Blocks provide exceptional water control, root development, and crop uniformity, built for growers who demand precision at every stage.

Prime Growing Blocks

Prime Growing Slabs

Cultiwool Prime Growing Slabs provide a sustainable, high-performance foundation for cultivation, combining natural binders with superior water management and uniform plant growth.

Prime Growing Slabs

Prime Starter Plugs

Cultiwool Prime Starter Plugs blend eco-conscious design and high performance to create the ideal microclimate for rapid root initiation and stable propagation.

Prime Starter Plugs

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