Cultilene Rockwool Cubes 25mm Stonewool Plugs Hydroponic Seed Propagation Tray

🪨 Type: Inert Structural Media
Contains no nutrient content by design — this is texture, drainage, and aeration, not food. Meant to be used as a standalone medium, a mix-in component, or a soil amendment.

Cultilene Stonewool Propagation Cubes | 25mm x 25mm x 40mm

Premium Hydroponic Seed & Cutting Starter Blocks

Looking for the perfect start for your seeds or cuttings? Cultilène is a world-renowned leader in hydroponic substrates, trusted by professional commercial growers and hobbyists alike for putting the grower's success first.

These premium stonewool propagation plugs are designed with a standard seed hole to fit perfectly into larger small-hole rockwool blocks or grow media. They offer an unbeatable air-to-water ratio, ensuring rapid root development and preventing waterlogging.

Choose your pack size from the dropdown menu. We offer four flexible options to suit any scale of grow, from small home setups to commercial propagation:

Single Sample: Perfect for testing out the quality before a larger build.

Full Tray of 50: Great for small-scale home grows and tent setups.

Full Tray of 100: Ideal for standard hobby propagation trays.

Full Tray of 150: The ultimate bulk value pack for high-volume growers.

Also a Favourite for Houseplant Cuttings & Propagation

You don't need a commercial setup to benefit from these — the houseplant propagation community uses exactly this kind of small stonewool cube to root cuttings before potting them into soil or LECA. It's sterile, holds the perfect air-to-water balance for delicate new roots, and lets you watch root development clearly before transplanting a Pothos, Philodendron, or Monstera cutting into its permanent home.

Why Choose Cultilène Rockwool Plugs?

Optimized Air-to-Water Ratio: Holds the perfect balance of moisture and oxygen for explosive, rapid root growth.

100% Inert & Pathogen-Free: Provides a clean, sterile environment to protect vulnerable seedlings and clones from root rot and pests.

Superior Strength & Stability: Excellent homogeneity ensures the blocks hold their shape and structure throughout the cloning process.

Excellent Controllability: Gives you total control over your nutrient and pH levels right from day one.

Convenient Design: Supplied in easy-to-use trays for effortless organization and handling.

Specifications:

Brand: Cultilène

Material: Premium Industrial Stonewool / Rockwool

Plug Dimensions: 25mm x 25mm x 40mm

Compatibility: Fits all standard small-hole transplanting blocks

Your order will be packed securely to ensure your rockwool cubes arrive in perfect, uncrushed condition.