Horticultural Grade Premium Perlite 3-6mm

Lightweight Horticultural Perlite for Improved Soil Aeration and Drainage

Lightweight horticultural perlite is a naturally occurring volcanic mineral that has been heat-expanded into small white granules. It is used to improve soil aeration and drainage, helping roots grow strong and healthy across a wide range of plants.

Perlite is ideal for mixing with compost or soil in pots, containers, raised beds, greenhouse growing, and garden borders.

When added to soil, perlite keeps the growing medium light and free-draining. It reduces compaction, allows roots to breathe, and helps prevent waterlogging by letting excess moisture drain away while still retaining essential moisture around plant roots.

Why Choose Horticultural Perlite

Perlite improves soil structure without adding weight, making it especially useful for containers and hanging baskets. Unlike heavier materials such as sand or grit, it maintains airflow within the soil while supporting good drainage. This balance makes it suitable for houseplants, vegetables, seedlings, cuttings, and greenhouse growing.

How to Use Perlite in Soil and Compost

For general planting, mix approximately 25% perlite with 75% compost or soil to create a balanced growing medium. For plants that require sharper drainage, such as succulents and cacti, increase the perlite content to around 50%.

Perlite can also be used on its own for rooting cuttings or starting seeds, where good moisture balance and airflow are essential.

Perlite for Seedlings and Propagation

Perlite is particularly useful for seed germination and plant propagation. Its sterile, free-draining structure helps reduce the risk of soil-borne diseases while holding moisture evenly. This supports quicker root development and healthier early growth.

Key Features

1. Improves soil aeration and drainage
2. Reduces soil compaction
3. Supports healthy root growth
4. Retains moisture while preventing waterlogging
5. Lightweight and easy to handle
6. Suitable for pots, containers, raised beds, and greenhouse use

Available Sizes

1 litre, 5 litres, 10 litres

Frequently Asked Questions Perlite

Can perlite be used on its own?

Yes. Perlite can be used alone for seed starting and cuttings, though most plants benefit from it being mixed with compost or soil.

Does perlite break down over time?

No. Perlite is stable and does not decompose, so it remains effective in soil mixes for many years.

Can perlite be reused?

Yes. Perlite can be washed and sterilised before reuse to remove plant material.

Is perlite suitable for all plants?

Perlite is safe for most plants. The mixing ratio should be adjusted depending on whether plants prefer moist or free-draining conditions.

How should perlite be stored?

Store in a dry, sealed bag away from damp conditions to prevent moisture absorption before use.

Find out other uses for perlite