Cultiwool Stonewool Cubes - 1.5 x 1.5 x 1.5-in - Without Shrinkwrap - 2,250 Count

Even Moisture for Early Rooting - 2 - 250 Small Starter Cubes

Starting cuttings and seeds in a medium that stays too wet or dries unevenly slows root development. These stonewool cubes are designed with an air-to-water balance that supports healthy roots, and they distribute water and nutrient EC evenly so roots keep developing after the first stage. They also absorb and re-saturate well.

At 1.5 inches (38 mm) per side, these cubes suit the earliest stage of cultivation. One unit holds 2,250 cubes in 150 strips, which fits growers running regular propagation cycles in hydroponic systems or large starting trays, as well as those who want a steady supply on hand.

Key Features & Benefits

• Balanced air and water ratio — supports healthy root growth in young plants.
• Plant Comfort fibre structure — gives roots lower resistance while rooting, with no loss of firmness.
• Optiplus underside design — lets excess water drain away easily.
• Strip format — 150 strips per unit make handling and loading trays straightforward.
• Supplied without shrinkwrap — ready to use from the carton.

Who Should Use Cultiwool 1.5-in Stonewool Cubes

These cubes suit propagators who start cuttings or seeds in volume: commercial cultivation rooms, nurseries and serious home growers who run frequent cycles. Anyone transplanting into larger blocks or hydroponic systems will find the small size a practical first step.

About Cultiwool Stonewool Cubes

Cultiwool makes stonewool (rockwool) growing media for cloning and seed starting. This cube measures 1.5 x 1.5 x 1.5 in (38 x 38 x 38 mm). Each unit contains 2,250 cubes in 150 strips and ships without shrinkwrap.

Frequently Asked Questions

Q: How many cubes come in one unit?
A: One unit contains 2,250 cubes, arranged in 150 strips. It is supplied without shrinkwrap.

Q: What size are these cubes?
A: Each cube is 1.5 x 1.5 x 1.5 in, or 38 x 38 x 38 mm. That small size suits cuttings and seedlings at the first stage of growth.

Q: What is EC and why does even distribution matter?
A: EC is electrical conductivity, a measure of the nutrient strength in water. Even distribution means roots in every part of the cube see consistent moisture and nutrients.

Q: What does the Optiplus feature do?
A: Optiplus is a design on the underside of the block that lets excess water drain away easily. It helps keep the base of the cube from staying waterlogged.

Q: How does stonewool compare with loose media for starting plants?
A: Stonewool cubes hold their shape and give consistent moisture and air around young roots. Loose media can vary more from cell to cell and need more handling.

Q: Do I need to adjust the cubes before use?
A: Stonewool is commonly conditioned before use, so check the pH of your water and follow your usual preparation routine. Cultiwool does not state specific preparation steps here, so follow the manufacturer's guidance.