Uni-Gro Pumice

Improve your soil’s structure and vitality with this naturally porous soil additive that enhances aeration, drainage, and water retention. Uni-Gro® Pumice is a volcanic material rich in tiny air pockets that help maintain a perfect balance of moisture and oxygen around plant roots. When mixed with potting soil, it prevents compaction, reduces waterlogging, and encourages healthy root development.

Ideal for seed germination, plant propagation, and container gardening, pumice supports both water-loving and drought-tolerant species by providing excellent root breathability. It can also be used as a top dressing for succulents and cacti to improve drainage and reduce fungal growth.

Long-lasting and reusable, this natural mineral never breaks down, making it a reliable soil amendment for sustainable, thriving gardens.

Find more organic potting mixes and natural soil enhancers in our Soil Amendments collection.

• Material: 100% natural volcanic pumice
• Function: Improves aeration, drainage, and moisture balance
• Use For: Potting mixes, seed germination, and propagation
• Benefit: Prevents compaction and promotes root health
• Durability: Long-lasting, reusable, and will not decompose
• Ideal For: Container gardens, succulents, and indoor plants