Uni-Gro Pumice
Best soil amendment for gardeners seeking improved aeration and root health.
This volcanic additive is the secret to fixing heavy, suffocating soil. By boosting aeration and moisture control, it creates the perfect environment for sensitive cuttings and seeds to thrive. It requires a bit of extra mixing work, but the payoff is significantly healthier, more resilient root systems.
$16.99
at
Grow Organic
More Pumice options
Who it's for
- Indoor gardeners protecting sensitive roots from rot
- Busy plant owners needing consistent moisture levels
- Long-term growers wanting permanent soil structure
Who should skip it
- Gardeners managing heavy hanging baskets or large pots
- Convenience seekers avoiding extra prep work
- Budget-conscious hobbyists looking for inexpensive amendments
Performance breakdown
Root Aeration
Volcanic porosity creates essential airflow for vigorous root system development.
Moisture Regulation
Balances water retention and drainage to prevent harmful soil compaction.
Propagation Support
Ideal texture for delicate cuttings and sensitive seed germination environments.
Soil Structure
Coarse volcanic particles provide necessary physical stability for potting mixes.
Sustainability
Responsibly sourced material appeals to the environmentally conscious home gardener.
Mixing Versatility
Integrates seamlessly into standard potting soils for immediate performance gains.
Key Specs
Volume
1 cubic foot
Weight
54 lbs
Dimensions
21.5 inches L x 15.5 inches W x 5.5 inches H
Material
100% natural volcanic rock
pH Level
Neutral
Packaging
Bag
Know before you buy
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Ask Metto anything about the Uni-Gro Pumice before you decide.