Critical Mass Seeds
Big harvests, beginner-friendly, classically indica
$50.15 – $143.657 pack sizes — choose at ILGM
Guaranteed germination · Free US shipping over $50 · Discreet packaging
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Our take
Critical Mass is a feminized, photoperiod indica bred from Afghani and Skunk #1 by Scott Blakey (Shantibaba). It's built around one standout trait: yield — up to 740 g/m² indoors. At 20% THC with deeply relaxing, sedating effects, it suits growers who want a straightforward, high-producing plant without a steep learning curve.
Grow specs
Specs are ILGM's published figures for this product; catalog and pricing last verified August 2026. Our write-up is our own — see how we make money.
Growing notes
Critical Mass stays short, so it works well in tighter indoor spaces and responds nicely to low-stress training to open up the canopy. Indoors, expect harvest around 63 days into flower. Outdoors, plants wrap up in September. Dense bud clusters can trap moisture in humid conditions, so keep airflow in mind during late flowering. Feminized seeds mean nearly every plant goes straight to production.
New to growing? Start with the complete guide, plan your gear with tent setups, and diagnose problems with troubleshoot.
Where this strain fits
ILGM lists this product for growers in these legal home-grow states — see each state's plant limits and growing season:
Want variety instead?
Mix packs bundle three proven strains (30 seeds) at up to 50% off buying separately — the best value in the catalog.
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