Blackseed by Reeferman
Blackseed is a sativa-leaning cannabis strain from Reeferman, bred by crossing Mexico Sativa. Indoors it typically finishes flowering in around 68 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blackseed grows against.
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Similar strains
| Breeder | Reeferman |
|---|---|
| Type | sativa |
| Flowering time | ±68 days |
| Environment | Outdoors |
| Lineage | Mexico Sativa |
| Descendants | Viper |
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🧬 Explore the family: Mexico Sativa · Viper
Ancestry Pedigree
Original Strains
Growing Blackseed: 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 Mexico Sativa 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.
Blackseed FAQ
How long does Blackseed take to flower?
Blackseed typically flowers in around 68 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Blackseed an indica or a sativa?
Blackseed is listed as sativa.
What are the parents of Blackseed?
Blackseed was bred from Mexico Sativa by Reeferman.
What environment does Blackseed 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 Blackseed? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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