Is Full Spectrum the GRO-DIRT for you?
If you’re looking for a true plug-and-play living soil with serious performance, this is your go-to. GRO-DIRT Full Spectrum is precision-built to carry plants from clone to harvest with just water, no bottled nutrients required. Loaded with our highest concentration of beneficial microbes (over 18 million CFU/g), this blend drives root-microbe symbiosis from day one.
Engineered for elite indoor and greenhouse cultivation, it delivers balanced nutrition, rich oxygenation, and powerful microbial cycling — ideal for photoperiods or heavy-feeding autoflowers. It’s a true high-performance biological engine, strengthened by long-aged composts, custom microbial extracts, fermented inputs, and our ultra-porous aeration matrix.
Best for: High-output indoor/greenhouse growers, water-only runs, terpene-rich flower, optimal microbial synergy.
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