Hardcore by Secret Valley

Hardcore strain photo
Type indica/sativaFlower ±53 daysCross Big Bud × Blueberry

Growers reach for Hardcore as an indica-leaning option, a cross of Big Bud × Blueberry out of Secret Valley. 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 Hardcore grows against.

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BreederSecret Valley
Typeindica/sativa
Flowering time±53 days
EnvironmentOutdoors
LineageBig Bud × Blueberry
DescendantsSour Jade, Russian Creme

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🧬 Explore the family: Big Bud · Blueberry · Sour Jade · Russian Creme

Ancestry Pedigree

Big Bud
Sensi Seeds
Big Bud
The Seed Bank
USA Indica
Original Strains
Afghanistan Indica
Original Strains
USA Indica
Original Strains
Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary

Growing Hardcore: 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 Big Bud or Blueberry 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.

Hardcore FAQ

How long does Hardcore take to flower?

Hardcore 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 Hardcore an indica or a sativa?

Hardcore is listed as indica/sativa.

What are the parents of Hardcore?

Hardcore was bred from Big Bud × Blueberry by Secret Valley.

What environment does Hardcore 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 Hardcore? 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.