Heavenly Blue by Master Thai
Growers reach for Heavenly Blue as a sativa-leaning option, a cross of Heavenly × Tahoe Blue Classic out of Master Thai. Indoors it typically finishes flowering in around 52 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Heavenly Blue grows against.
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Similar strains
| Breeder | Master Thai |
|---|---|
| Type | mostly sativa |
| Flowering time | ±52 days |
| Environment | Outdoors |
| Lineage | Heavenly × Tahoe Blue Classic |
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🧬 Explore the family: Heavenly · Tahoe Blue Classic
Ancestry Pedigree
Master Thai
BC Growers Association
Unknown or Legendary
Original Strains
Brothers Grimm
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Sensi Seeds
The Seed Bank
Original Strains
Cultivators Choice
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Master Thai
DJ Short
Unknown or Legendary
DJ Short
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Master Thai
Unknown or Legendary
Cultivators Choice
Original Strains
Growing Heavenly Blue: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Heavenly or Tahoe Blue Classic 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.
Heavenly Blue FAQ
How long does Heavenly Blue take to flower?
Heavenly Blue typically flowers in around 52 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Heavenly Blue an indica or a sativa?
Heavenly Blue is listed as mostly sativa.
What are the parents of Heavenly Blue?
Heavenly Blue was bred from Heavenly × Tahoe Blue Classic by Master Thai.
What environment does Heavenly Blue 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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