Critical#47 Express by Positronics

Critical#47 Express strain photo
Type ruderalis/indica/sativaFlower ±63 daysCross Critical Nr47 × Ruderalis

Critical#47 Express lands on the indica-leaning side of the spectrum, Positronics's take on the Critical Nr47 × Ruderalis line. Indoors it typically finishes flowering in around 63 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Critical#47 Express grows against.

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Similar strains

CBD + Critical #47Positronics · ±53 daysSomango #47Positronics · ±67 daysSupercheese ExpressPositronics · ±65 daysMayday ExpressPositronics · ±68 daysWernard ExpressPositronics · ±73 daysNorthern Haze ExpressPositronics · ±78 daysAuto AmnesiaLinda Seeds · ±63 daysAuto Black OpiumDivine Seeds · ±63 daysAuto Blue DreamDutch-Headshop · ±63 daysAuto Blue MangoBSB · ±63 daysAuto ChemdogAuto Seeds · ±63 daysAuto Critical BangSputnik Seeds · ±63 daysAll Positronics →
BreederPositronics
Typeruderalis/indica/sativa
Flowering time±63 days
EnvironmentOutdoors
LineageCritical Nr47 × Ruderalis

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🧬 Explore the family: Ruderalis

Ancestry Pedigree

Critical Nr47
Positronics
Critical Mass
Mr Nice Seedbank
Afghanistan Indica
Original Strains
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
AK47
Serious Seeds
Colombia Sativa
Original Strains
Mexico Sativa
Original Strains
Thailand Sativa
Original Strains
Afghanistan Indica
Original Strains
Ruderalis
Original Strains

Growing Critical#47 Express: 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 Nr47 or Ruderalis 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#47 Express FAQ

How long does Critical#47 Express take to flower?

Critical#47 Express typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Critical#47 Express an indica or a sativa?

Critical#47 Express is listed as ruderalis/indica/sativa.

What are the parents of Critical#47 Express?

Critical#47 Express was bred from Critical Nr47 × Ruderalis by Positronics.

What environment does Critical#47 Express 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.

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Facts compiled from public breeder listings. Growing Critical#47 Express? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.