THC Pro by Big Head Seeds
THC Pro is an indica-leaning cannabis strain from Big Head Seeds, bred by crossing Chronic × Unknown Strain. Indoors it typically finishes flowering in around 56 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real THC Pro grows against.
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Similar strains
| Breeder | Big Head Seeds |
|---|---|
| Type | indica/sativa |
| Flowering time | ±56 days |
| Environment | Outdoors |
| Lineage | Chronic × Unknown Strain |
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Growing THC Pro: 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 Chronic or Unknown Strain 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.
THC Pro FAQ
How long does THC Pro take to flower?
THC Pro typically flowers in around 56 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is THC Pro an indica or a sativa?
THC Pro is listed as indica/sativa.
What are the parents of THC Pro?
THC Pro was bred from Chronic × Unknown Strain by Big Head Seeds.
What environment does THC Pro 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 THC Pro? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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