Grodan GR-slab Improved

The improved version features an advanced wetting agent that ensures more uniform water and nutrient distribution throughout the slab. This makes it significantly easier to maintain consistent moisture levels, which helps prevent dry spots and promotes more even root development.

Rapid resaturation means the slab absorbs water quickly and evenly even after it has dried out slightly. This gives you a wider margin for error in your irrigation timing, allowing for more flexibility without sacrificing plant health.

Yes, it is quite beginner-friendly because of its wide steering range. The slab is designed to be forgiving, meaning it holds water effectively while still providing enough aeration to prevent common issues like overwatering or root suffocation.

Absolutely. While these are optimized for the specific needs of cannabis, they are excellent for a variety of vegetables and flowers that thrive in a controlled, soilless environment. The uniform structure supports vigorous growth across many plant types.

For most cannabis or vegetable setups, you should plan for three to four plants per slab. This spacing ensures each plant has adequate room for root development and prevents overcrowding as they mature.

Yes, you should always pre-soak Grodan slabs with a nutrient solution adjusted to your target pH before planting. This ensures the slab is fully saturated and the pH is stabilized for your specific crop.