• Grodan Cress Plate
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Product benefits

  • Consistent Performance
  • Watering Balance
  • Efficient Nutrient Use
  • Air-Water Balance
  • Root Development
  • Easy Setup
  • Transplant Support
  • Root Zone Oxygen

This product may offer additional benefits beyond those listed.

Frequently purchased together

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Grodan Cress Plate

Indoor Outdoor
$2.40
$2.40
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Product benefits

  • Consistent Performance
  • Watering Balance
  • Efficient Nutrient Use
  • Air-Water Balance
  • Root Development
  • Easy Setup
  • Transplant Support
  • Root Zone Oxygen

This product may offer additional benefits beyond those listed.

Description
Description
Grodan Cress Plate is a stone wool substrate for microgreens and baby leaf crops, built for quick and easy germination and uniform early growth. This stone wool growing media is designed as a thin grow plate for fast, intensive greens production where evenness matters from edge to edge.

One of the defining features is that it’s the thinnest Grodan product available, created for quick growing crops that need minimal substrate. The consistent structure supports quick and easy germination, helping starts come up evenly so the crop can move forward together. For growers who care about repeatability, that consistent structure is a big reason the plate stays dependable from batch to batch.

Grodan Cress Plate is also built around uniform density, which supports uniform water levels throughout the product for even crop growth. In practical terms, that uniform density helps keep moisture distribution more even across the plate, supporting steadier crop development during short cycles. The fine fibrous structure is designed for young, tender roots to explore, supporting fast root development in the earliest stage without relying on bulky media.

For production teams that want a clean, streamlined format, this thin stone wool grow plate is positioned for professional microgreen production and micropropagation. It’s designed to sit neatly inside a standard propagator dome, making handling simple during early-stage work while keeping the growing surface consistent. If you’re growing microgreens such as arugula, basil, chives, or watercress, the plate format is built to support uniform and quick crop development that’s easier to harvest and easier to standardize.

This product is a good fit for growers focused on microgreens and baby leaf crops who want a thinnest-in-range stone wool substrate with uniform density, uniform water levels, and quick and easy germination for even crop growth.
Product benefits
Consistent Performance; Watering Balance; Efficient Nutrient Use; Air-Water Balance; Root Development; Easy Setup; Transplant Support; Root Zone Oxygen; Indoor; Outdoor.
Derived from
Basalt; Chalk Rock; Hydrophilic Binder.

Derived From
Basalt
Chalk Rock
Hydrophilic Binder

Frequently Asked Questions
Does basalt help plants directly, or is it mostly for soil structure?

Basalt mostly helps plants indirectly by improving the root-zone environment through better drainage, oxygen flow, and long-term soil stability, while only slowly contributing minerals as it weathers over time. It’s unique because its biggest benefits come from physical soil performance and consistency rather than quick nutrient release like fast-acting amendments.

Read the full guide

Why is chalk rock added to rockwool media?

Chalk rock helps stabilize the root-zone by buffering against sudden pH drops while slowly contributing calcium, which supports strong roots and healthy new growth. It’s unique because it actively resists rapid acidity shifts instead of behaving like a purely inert media ingredient.

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What does a hydrophilic binder actually do in the root zone?

A hydrophilic binder acts like a water-loving glue that helps tiny particles stay evenly placed while also helping water spread and re-wet more uniformly, which supports steadier root function. It’s unique because it improves both physical cohesion and water behavior at the same time, unlike simple adhesives or simple wetting ingredients that only do one job.

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