Premium Volcanic Soil Amendment for Aeration, Drainage & Root Health
100% Horticultural-Grade Pumice
Sourced from naturally occurring volcanic deposits
Particle Size: 3/8” (approximately 9.5mm)
Our 3/8” Horticultural Pumice is a premium soil amendment made from natural volcanic rock. Perfect for improving aeration, drainage, and root structure in your potting mix, this chunky pumice is ideal for succulents, cacti, bonsai, aroids, and tropical houseplants. Its highly porous structure retains moisture while preventing waterlogging and compaction.
Improves Soil Drainage – Reduces water retention and prevents root rot
Increases Aeration – Promotes oxygen flow and supports healthy roots and microbes
Adds Long-Term Structure – Won’t break down like bark or compost over time
Natural & Inert – No chemicals, additives, or fertilizers—just pure volcanic rock
Reusable & Sustainable – Rinse and reuse for eco-friendly growing
Perfect for Indoor & Outdoor Plants – Excellent in containers, raised beds, and specialty potting mixes
Rinse before use to remove natural volcanic dust
Mix into potting soil for aroids, succulents, bonsai, cacti, and houseplants—use 10–50% depending on the plant
Top dress houseplants to deter fungus gnats and conserve surface moisture
Use for propagation to root cuttings in a fast-draining, rot-resistant medium
Amend heavy soils in the garden or containers to improve porosity and drainage
Chunky 3/8” Grade Pumice – Great for chunky tropical mixes and bonsai
Naturally Mined Volcanic Rock – Minimal processing, eco-conscious sourcing
Stable & Long-Lasting – Doesn’t compact or break down over time
🪴 Use this horticultural pumice on its own for semi-hydroponic setups with airflow-loving plants like Monsteras, Philodendrons, and Hoyas—or mix it into your favorite potting blend to boost drainage, structure, and long-term performance.
Premium Volcanic Soil Amendment for Aeration, Drainage & Root Health
100% Horticultural-Grade Pumice
Sourced from naturally occurring volcanic deposits
Particle Size: 3/8” (approximately 9.5mm)
Our 3/8” Horticultural Pumice is a premium soil amendment made from natural volcanic rock. Perfect for improving aeration, drainage, and root structure in your potting mix, this chunky pumice is ideal for succulents, cacti, bonsai, aroids, and tropical houseplants. Its highly porous structure retains moisture while preventing waterlogging and compaction.
Improves Soil Drainage – Reduces water retention and prevents root rot
Increases Aeration – Promotes oxygen flow and supports healthy roots and microbes
Adds Long-Term Structure – Won’t break down like bark or compost over time
Natural & Inert – No chemicals, additives, or fertilizers—just pure volcanic rock
Reusable & Sustainable – Rinse and reuse for eco-friendly growing
Perfect for Indoor & Outdoor Plants – Excellent in containers, raised beds, and specialty potting mixes
Rinse before use to remove natural volcanic dust
Mix into potting soil for aroids, succulents, bonsai, cacti, and houseplants—use 10–50% depending on the plant
Top dress houseplants to deter fungus gnats and conserve surface moisture
Use for propagation to root cuttings in a fast-draining, rot-resistant medium
Amend heavy soils in the garden or containers to improve porosity and drainage
Chunky 3/8” Grade Pumice – Great for chunky tropical mixes and bonsai
Naturally Mined Volcanic Rock – Minimal processing, eco-conscious sourcing
Stable & Long-Lasting – Doesn’t compact or break down over time
🪴 Use this horticultural pumice on its own for semi-hydroponic setups with airflow-loving plants like Monsteras, Philodendrons, and Hoyas—or mix it into your favorite potting blend to boost drainage, structure, and long-term performance.
