SunGro Black Gold Seedling Mix
Best premium growing medium for serious indoor seed starting enthusiasts.
This is the gold standard for starting seeds, offering a fine, airy texture that delicate roots actually crave. While it lacks the bulk of standard potting soil, the added silicon strengthens young stems, giving your seedlings a noticeably sturdier head start before they ever hit the garden.
$7.10
at
Concentratesnw
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Who it's for
- Gardeners seeking high germination rates for sensitive vegetable and flower seeds
- Eco-conscious growers prioritizing organic standards for their home-grown produce
- Busy hobbyists who need a forgiving medium that maintains consistent hydration
Who should skip it
- Beginners expecting a long-term self-sustaining soil without additional liquid fertilizers
- Budget-focused planters starting hundreds of seeds on a strict financial limit
- Indoor gardeners looking for a single soil for the entire lifecycle
Performance breakdown
Germination Success Rate
Fine texture ensures delicate roots establish quickly without obstruction.
Moisture Retention
Organic wetting agent prevents dry pockets during critical early growth.
Structural Integrity
Silicon-based additive actively reinforces stems against common seedling weakness.
Aeration Quality
Perlite ratio strikes the perfect balance for essential root oxygenation.
Ease of Handling
Lightweight composition makes filling small plug trays effortless and clean.
Organic Purity
OMRI listing guarantees a clean, chemical-free start for edible crops.
Key Specs
Weight
35 lbs
Dimensions
26 x 16 x 6 inches
Volume
16 Quarts / 1.5 cubic feet
Key Ingredients
Canadian sphagnum peat moss, RESiLIENCE, perlite, organic wetting agent
Organic Certified
Yes
OMRI Listed
Yes
Intended Use
Germinating seeds in flats, pots, and plug trays
Know before you buy
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Ask Metto anything about the SunGro Black Gold Seedling Mix before you decide.