Growcery Lightweight LECA Clay Pebbles 10–16mm

Lightweight LECA Clay Pebbles – 10–16mm

Growcery Lightweight LECA Clay Pebbles are made from expanded clay and graded to approximately 10–16mm. Their larger, rounded form and lightweight structure make them suitable for hydroponics, drainage layers, orchid growing, decorative top dressing and larger planting containers.

The porous clay pebbles help create open spaces around plant roots, supporting airflow and allowing excess water to move more freely through suitable growing media. Their larger particle size is particularly useful where a coarser, more open structure is preferred.

Key benefits

• Lightweight expanded clay pebbles
• Large 10–16mm grade
• Rounded, porous structure
• Supports drainage and root-zone aeration
• Suitable for hydroponic and semi-hydro systems
• Useful as a drainage layer in larger pots
• Ideal for orchid growing and coarse substrate blends
• Creates a clean decorative finish
• Can be rinsed and reused where appropriate

Suitable for

• Hydroponic growing
• Semi-hydro plant care
• Orchid potting
• Larger houseplant pots
• Drainage layers
• Decorative top dressing
• Planters and containers
• Propagation systems
• Coarse growing-media blends

How to use

Rinse thoroughly with clean water before use to remove naturally occurring dust caused by handling and transportation.

For hydroponic or semi-hydro growing, prepare and condition the clay pebbles according to the requirements of your chosen system.

They can also be used as a coarse drainage layer, a decorative surface covering or blended with other growing-media components where additional structure and airflow are required.

Please note

Particle size is approximate, and natural variation in shape, colour and texture may occur. Some pebbles may be slightly rounded or oval, and occasional broken pieces may be present.

Expanded clay does not provide significant plant nutrition on its own. Plants should receive water and nutrients according to the chosen growing method.