Blue Sonja by GrindHouse
Growers reach for Blue Sonja as a sativa-leaning option, a cross of Block Head out of GrindHouse. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blue Sonja grows against.
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Similar strains
| Breeder | GrindHouse |
|---|---|
| Type | mostly sativa |
| Flowering time | ±70 days |
| Environment | Outdoors |
| Lineage | Block Head |
| Descendants | Tang Tang |
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🧬 Explore the family: Block Head · Tang Tang
Ancestry Pedigree
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Growing Blue Sonja: 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 Block Head 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.
Blue Sonja FAQ
How long does Blue Sonja take to flower?
Blue Sonja typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Blue Sonja an indica or a sativa?
Blue Sonja is listed as mostly sativa.
What are the parents of Blue Sonja?
Blue Sonja was bred from Block Head by GrindHouse.
What environment does Blue Sonja 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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