Iron Triangle by Colorado Seed
Growers reach for Iron Triangle as an indica-leaning option, a cross of Triangle Kush × Gupta Kush out of Colorado Seed. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Iron Triangle grows against.
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Similar strains
| Breeder | Colorado Seed |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Triangle Kush × Gupta Kush |
| Descendants | Iron Triangle OG #9 BX |
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🧬 Explore the family: Triangle Kush · Gupta Kush · Iron Triangle OG #9 BX
Ancestry Pedigree
Clone Only Strains
Original Strains
Original Strains
Colorado Seed Inc
Colorado Seed Inc
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Clone Only Strains
Original Strains
Original Strains
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Rare Dankness Seeds
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Rare Dankness Seeds
Clone Only Strains
Unknown or Legendary
Original Strains
Reservoir Seeds
Unknown or Legendary
Reservoir Seeds
Unknown or Legendary
Reservoir Seeds
Unknown or Legendary
Sensi Seeds
The Seed Bank
The Seed Bank
Clone Only Strains
Unknown or Legendary
Unknown or Legendary
Clone Only Strains
Growing Iron Triangle: 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 Triangle Kush or Gupta Kush 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.
Iron Triangle FAQ
How long does Iron Triangle take to flower?
Iron Triangle typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Iron Triangle an indica or a sativa?
Iron Triangle is listed as indica/sativa.
What are the parents of Iron Triangle?
Iron Triangle was bred from Triangle Kush × Gupta Kush by Colorado Seed.
What environment does Iron Triangle 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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