Growool Premium Rockwool Floc 13.6KG 110 L

Quick Answer

Growool Premium Rockwool Floc 13.6KG 110 L is an Australian-made loose mineral-fibre growing medium for hydroponic and soilless systems. The inorganic, inert floc can be mixed with clay pebbles for more even water and nutrient distribution or placed at the base of a pot as a filter. It contains no plant nutrient, has no cation exchange capacity and does not buffer pH, so condition it before use, supply a complete nutrient solution and ensure free drainage.

Product Description

Growool Premium Floc is made from fine fibres spun from natural molten rock. Its loose form makes it practical for blending with other media or filling irregular spaces in hydroponic containers. A typical floc volume provides approximately 80% water-holding space and 17% air space while remaining structurally stable and non-biodegradable.

Key Features

• Australian-made loose rockwool floc
• Typical balance of approximately 80% water and 17% air by volume
• Inorganic and chemically inert
• Contains no plant nutrient and has no cation exchange capacity
• Does not buffer pH, allowing the grower to manage the root-zone solution
• Can be blended with clay pebbles or used as a pot-base filter
• Non-biodegradable growing-medium structure

Available Size

• 13.6 kg / 110 L bag

Specifications

Material	Fine mineral fibres spun from natural molten rock
Form	Loose rockwool floc
Pack size	13.6 kg / 110 L
Country of manufacture	Australia
Typical water capacity	Approximately 80% by volume
Typical air capacity	Approximately 17% by volume
Nutrient content	None
Cation exchange capacity	None
pH buffering	None
Biodegradability	Non-biodegradable

Package Contents

• 1 × Growool Premium Rockwool Floc bag, 13.6 kg / 110 L

Directions for Use

1. Put on gloves, protective clothing, safety glasses and a suitable dust mask before opening or handling the dry floc.
2. Loosen the required amount in a clean container and pre-wet it to reduce airborne fibres.
3. Condition the medium to the target pH for your crop and nutrient program before planting.
4. Mix with clean clay pebbles for more uniform water and nutrient distribution, or place at the base of a pot as a filter layer.
5. Use only in a container or system that drains freely. Do not allow the medium to remain waterlogged.
6. Supply a complete nutrient solution separately and monitor pH, EC, moisture and drainage during use.

Care, Maintenance & Safety

• Store under cover in a clean, dry area.
• Avoid breathing dust and minimise skin and eye contact; wash hands after handling.
• The product label states that the material may contain trace formaldehyde up to 0.01%. Follow the current package label and safety data sheet.
• If irritation persists, stop use and seek medical advice.
• Keep the root zone free-draining and check irrigation settings regularly.

Buyer FAQs

What is rockwool floc?

It is loose mineral fibre spun from molten rock. Unlike a formed cube or slab, floc can be blended with another medium or placed in a container as a filter layer.

Does Growool Premium Floc contain fertiliser?

No. It contains no plant nutrient, so plants need a complete nutrient solution suited to the crop and growing system.

Do I need to pH-condition it?

Yes. The medium has no pH-buffering capacity, so condition it to the target range for your crop before use and continue monitoring the root-zone solution.

Can I mix it with clay pebbles?

Yes. Mixing floc with clay pebbles can help distribute water and nutrient solution more uniformly while the container remains free-draining.

Can it be used by itself?

Its loose form can be used in suitable hydroponic or soilless applications, but the container must provide support and unrestricted drainage. Follow your system design and the current product label.

Is it biodegradable?

No. Rockwool floc is an inorganic, non-biodegradable growing medium.