Cultiwool Stonewool Cubes with Shrinkwrap - 1.5 x 1.5 x 1.5-in - 2,250 Count

Even Moisture for Early Rooting - 2 - 250 Shrink-Wrapped Cubes

Young roots stall when a starter medium stays soggy or dries unevenly. Cultiwool stonewool cubes are built for an even spread of water and nutrient strength through the block, which supports steady early rooting. The fibre structure resists roots lightly without losing firmness, so cubes hold their shape in handling.

At 1.5 in per side, these cubes suit seed starting and cuttings before transplant to a larger block. With 2,250 cubes in one unit, they fit growers running frequent or large propagation cycles, from busy indoor gardeners to commercial operations.

Key Features & Benefits

• Balanced air and water ratio — supports healthy root growth in early stages.
• Plant Comfort fibre structure — gives roots lower resistance while the cube stays firm.
• Strip format — 15 cubes per shrink-wrapped strip keeps cubes together for fast tray loading.
• Stonewool material — works in hydroponic systems and other soilless setups.
• Good absorption and re-saturation — cubes take up water quickly and rewet well.

Who Should Use Cultiwool 1.5-in Stonewool Cubes

Growers who start many seeds or cuttings at once, and who want a uniform, ready-to-use starter medium. Because the unit is large, it suits commercial propagation rooms and serious hobbyists who plan ahead.

About Cultiwool Stonewool Cubes

Cultiwool makes stonewool (rockwool) growing media. These cubes measure 1.5 x 1.5 x 1.5 in (38 x 38 x 38 mm), come on shrink-wrapped strips of 15, and total 2,250 cubes across 150 strips per unit.

Frequently Asked Questions

Q: How many cubes are included?
A: The unit contains 2,250 cubes. They come on 150 strips of 15 cubes each.

Q: What size are the cubes?
A: Each cube measures 1.5 x 1.5 x 1.5 in, or 38 x 38 x 38 mm. This is a small starter size meant for early propagation.

Q: What is stonewool?
A: Stonewool, also called rockwool, is a fibrous growing medium made from spun mineral material. It holds water and air together, which helps young roots develop.

Q: How do I prepare the cubes for use?
A: Soak or flush the cubes with pH-adjusted water before placing seeds or cuttings, following your usual starter routine. Let excess water drain before loading trays.

Q: How do starter cubes differ from larger blocks?
A: Small cubes start seeds and cuttings in little space and are moved into larger blocks or systems later. Larger blocks hold more water and give roots more room for longer.