Pumice Stone 8-12mm - Washed

Our Pumice Stone (8–12mm) is a natural volcanic rock that serves as an excellent soil amendment. Its larger granule size is perfect for enhancing soil structure, ensuring proper airflow around roots, and preventing waterlogging.

Pre-washed and ready to use, this pumice is ideal for plants that thrive in well-drained environments, such as bonsai, orchids, succulents, and other container-grown plants.

Benefits

• Enhances Drainage: Prevents water accumulation, reducing the risk of root rot.
• Improves Aeration: Allows roots to breathe, promoting healthier growth.
• Retains Moisture: Holds water in its pores, releasing it slowly to plant roots.
• Long-Lasting: Does not decompose, ensuring consistent soil structure.
• pH Neutral: Safe for all plant types, including edibles.

How to Use

Bonsai Soil Mix

• Combine pumice with akadama and lava rock in equal parts (1:1:1) to create a balanced, well-draining bonsai substrate.
• Supports fine root development and precise water control.

Orchid Potting Mix

• Mix pumice with bark and charcoal to enhance aeration and drainage for orchids.
• Prevents root rot by allowing excess water to drain efficiently.

Succulent & Cactus Mix

• Blend 1 part pumice with 2 parts cactus or succulent soil to improve drainage.
• Helps prevent overwatering and root rot in desert plants.

Top Dressing for Pots

• Apply a 1–2 cm layer of pumice on top of the soil to reduce evaporation and deter pests like fungus gnats.
• Provides a clean, finished look to potted plants.

Soil Amendment for Containers & Raised Beds

• Incorporate pumice into heavy or clay soils at a 20–30% ratio to improve porosity and drainage.
• Enhances soil structure for vegetables and ornamental plants.

📦 Product Specifications

• Size: 8–12mm granules
• Material: 100% natural volcanic pumice
• Finish: Pre-washed and dust-free

Frequently Asked Questions

Is 8–12mm pumice suitable for all plants?
This size is ideal for larger plants and containers, such as bonsai, orchids, succulents, and cacti. For smaller plants or seedlings, a finer pumice may be more appropriate.

Can I use pumice alone as a growing medium?
While pumice provides excellent drainage and aeration, it lacks nutrients. It's best used in combination with organic materials like compost or potting soil.

How long does pumice last in soil?
Pumice is a durable, inorganic material that doesn't break down over time, making it a long-lasting soil amendment.

Is this pumice pre-washed?
Yes, our pumice is pre-washed and ready to use, saving you time and effort during soil preparation.

Does pumice affect soil pH?
No, pumice is pH neutral and won't alter the acidity or alkalinity of your soil.