Grodan Improved Gro-Block GR6.5 Small, 4 x 4 x 2.5 in (10 x 10 x 6.5 cm), No Wrap (216 / case)

Grodan Improved Gro-Block GR6.5 Small blocks are engineered stone wool growing blocks made for precision and consistency in professional cultivation. Measuring 4 x 4 x 2.5 inches (10 x 10 x 6.5 cm), these no-wrap blocks allow roots to expand freely, providing strong plant anchorage and efficient nutrient absorption.

The improved technology ensures faster root penetration, excellent water distribution, and balanced air content for healthier, more vigorous plants. Their uniform structure reduces the risk of dry spots and promotes consistent growth across every block, making them ideal for transplanting young plants or growing directly to harvest.

Perfect for commercial greenhouses and controlled environments, Grodan GR6.5 Small Gro-Blocks offer growers reliable performance, easy handling, and improved crop outcomes cycle after cycle.