Grodan Rockwool / Stonewool 3″ x 3″ x 4″ Gro Blocks – 8 Pack
Made in Denmark since 1969, Grodan rockwool (also called stonewool) is widely recognized as the ideal soilless substrate. For any growing application, rockwool offers speed, ease of use, and cleanliness. Rockwool is an alternative to coco coir and expanded clay for hydroponic applications.
- 3" Gro Blocks can be used as an intermediary or final container for planting.
- Individually wrapped cubes hold the rockwool's shape and prevent algae growth.
- Comes in a strip of 8 3" x 3" x 4" gro-blocks
In stock
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Overview
Grodan Gro Block Improved GR5.6 Large 3″ with Holes
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 root zone due to the uniform, optimized wool resulting in sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
Features:
Leverage the benefits of products developed alongside plant scientists, that are specifically engineered to deliver real results for your crops. Grodan Gro-Blocks Improved with Advanced Wetting Technology — our improved stone wool substrate.
- Excellent water holding capacity
- Cultivate more uniform and high-quality crops
- Faster rooting-in of plants
- Less water and nutrient usage throughout the entire crop cycle
- Uniform Water Content and Electrical Conductivity distribution throughout block
- Delivers real results to your crops
- Higher plant yields
Specifications
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