Critical Mass 33 by CH9 Female Seeds
Critical Mass 33 lands on the indica-leaning side of the spectrum, CH9 Female Seeds's take on the Critical Mass × Jack 33 line. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Critical Mass 33 grows against.
🌿 Start a Critical Mass 33 journal — free →
Similar strains
| Breeder | CH9 Female Seeds |
|---|---|
| Type | indica/sativa |
| Flowering time | ±53 days |
| Environment | Outdoors |
| Lineage | Critical Mass × Jack 33 |
🌱 Get Critical Mass 33 seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Critical Mass · Jack 33
Ancestry Pedigree
Mr Nice Seedbank
Original Strains
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
CH9 Female Seeds
CH9 Female Seeds
Sensi Seeds
The Seed Bank
Original Strains
Original Strains
Original Strains
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
Original Strains
Cultivators Choice
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
CH9 Female Seeds
Dutch Passion
Original Strains
Unknown or Legendary
Growing Critical Mass 33: what to expect
As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Critical Mass or Jack 33 will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Critical Mass 33 FAQ
How long does Critical Mass 33 take to flower?
Critical Mass 33 typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Critical Mass 33 an indica or a sativa?
Critical Mass 33 is listed as indica/sativa.
What are the parents of Critical Mass 33?
Critical Mass 33 was bred from Critical Mass × Jack 33 by CH9 Female Seeds.
What environment does Critical Mass 33 like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
📷 Growing Critical Mass 33 and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Critical Mass 33? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
Track your own grow free — the journal grades your environment against these bands →
Get the one-page grow reference card
VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.