RedRock Grow Slab PRO - 90x15x7.5cm - 10 cm Pre-Cut (x3) - 36-Inch x 6-Inch x 3-Inch (Single)

RedRock Grow Blocks are the stonewool of choice for commercial cultivators.  RedRock has been sold to North America's largest farms and cultivators with two things in mind - Crop yield and cost.  

Commercial grade stonewool grow blocks manufactured from high-grade US made raw material.  

• Stonewool is made in the USA
• Wetting agent ensures nutrients are immediately plant available
• High fiber density makes better use of water and fertilizers while allowing dry back
• Priced for commercial agriculture production
• Sizes available for any crop 
• Blocks are processed in Canada
• This white label product was sold to the largest cultivators in North America for years and is now available to you

SPECIFICATIONS

Water Holding Capacity @ Saturation: 2.58 Gallons (Approx.)

Selecting Grow Media

It is common to find propagators moving fresh cuttings into plugs for the initial stage of development. Once rooted plants are transplanted into grow blocks and then placed on top of grow slabs to extend root zone development and access to water and nutrients. Selecting the correct substrate for your crop depends on many variables such as size, duration, density, and more.