Grow Organic Black Gold Perlite
Best soil amendment for gardeners seeking improved drainage and root health.
This volcanic amendment is the ultimate insurance policy against root rot and compacted soil. It adds the necessary structure for healthy growth, though you will have to get your hands dirty mixing it into your own custom blends.
$10.99
at
SeedTime (retailer)
Who it's for
- Gardeners struggling with heavy, waterlogged soil
- Container gardeners needing lightweight, portable potting mixes
- Seed starters and propagators requiring a sterile, neutral medium
Who should skip it
- Safety-conscious users avoiding respiratory irritants
- Aesthetic-focused gardeners bothered by surface debris
- Busy growers needing moisture-retentive soil amendments
Performance breakdown
Drainage efficiency
Volcanic structure creates ideal pathways for excess water to escape quickly.
Aeration capacity
Prevents soil compaction to ensure roots receive consistent oxygen flow.
Material longevity
Inorganic composition ensures the amendment will not break down over time.
Ease of handling
Lightweight texture makes mixing into heavy potting soil effortless.
Sterility profile
Heat-expanded process eliminates pathogens for safer seed starting and propagation.
Moisture retention
Balances drainage needs while holding just enough moisture for root health.
Key Specs
Material
Heat expanded siliceous volcanic rock
Size
8 qt
pH
Neutral
Volume
0.267 cubic feet
Soil Type
Potting Mix, Garden Soil
Volume
8 quarts
Organic Certified
False
Intended Use
Vegetables, Flowers
Key Ingredients
Perlite
Moisture Retention Level
Medium
Know before you buy
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Ask Metto anything about the Grow Organic Black Gold Perlite before you decide.