Gro-Block Improved GR22, Jumbo

Regular Price $2.41

Perfectly designed to support medium sized plants through to harvest. The Jumbo is also a great choice to transplant a smaller, well rooted Gro-Block. New Grodan Improved! New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate. Case of 64 Jumbo 6″ x 6″ x 4″ Gro-Blocks.

Out of stock

SKU: 16477 Category:


Grodan Gro-Block Improved GR22, Jumbo (box of 64)

Download Grodan Gro-Blocks Improved – Data Sheet



We supply innovative and sustainable stone wool growing media solutions for the professional horticultural sector, based on Precision Growing principles. These solutions are, amongst others, applied for the cultivation of vegetables and flowers, such as tomatoes, cucumbers, sweet peppers, eggplants, roses and gerberas. Sustainability plays a prominent role within Grodan, from the manufacture of stone wool substrates to end-of-life solutions. Grodan is founded in 1969 and active in more than seventy countries worldwide. The head office is located in Roermond, the Netherlands.

Additional information

Weight 10.886208 lbs


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.