Delta Hugo 6x6x6" w/ Hole - Improved

New Grodan Improved! Improved product at current pricing. 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.

When your seedlings have a couple of small leaves and the roots emerge from the starter cubes, it's time to transplant them into full-sized rockwool blocks. Soak the blocks in pH 5.5 water and insert the cubes in the holes shortly afterwards. Use the 3'' or 4'' sizes if you plan to move up to rockwool slabs later on, or choose the larger 4'', 6" or 8'' sizes to grow plants to maturity.

• Gro-Blocks are similar to a "plant container". Need a 3" pot? Then choose a 3" Gro-Block. Small plants can be fully grown in our larger Gro-Blocks. Holes are perfect size for any 1.5" starter plug. Come in packs labeled with instructions.
• Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.

NOTE: A full case consists of 64 blocks. If you are looking to purchase full cases, simply order in increments of 64. When you add them to your cart you will see that the price has been changed to reflect the discounted case price.