IronSmith OG by Exclusive Seeds
IronSmith OG lands on the indica-leaning side of the spectrum, Exclusive Seeds's take on the 9lb Hammer × Hells Fire line. 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 IronSmith OG grows against.
🌿 Start a IronSmith OG journal — free →
Similar strains
| Breeder | Exclusive Seeds |
|---|---|
| Type | mostly indica |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | 9lb Hammer × Hells Fire |
🌱 Get IronSmith OG seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: 9lb Hammer
Ancestry Pedigree
Jinxproof Genetics
Unknown or Legendary
Clone Only Strains
Sensi Seeds
Original Strains
Original Strains
Original Strains
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
SubCools The Dank
Unknown or Legendary
Clone Only Strains
Original Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Unknown or Legendary
SubCools The Dank
SubCools The Dank
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
The Seed Bank
The Seed Bank
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Cultivators Choice
Unknown or Legendary
BC Growers Association
Unknown or Legendary
Original Strains
Brothers Grimm
Unknown or Legendary
Sensi Seeds
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
Crockett Family Farms
Unknown or Legendary
Crockett Family Farms
DNA Genetics Seeds
Unknown or Legendary
Original Strains
Unknown or Legendary
Unknown or Legendary
Original Strains
Growing IronSmith OG: 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 9lb Hammer or Hells Fire 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.
IronSmith OG FAQ
How long does IronSmith OG take to flower?
IronSmith OG 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 IronSmith OG an indica or a sativa?
IronSmith OG is listed as mostly indica.
What are the parents of IronSmith OG?
IronSmith OG was bred from 9lb Hammer × Hells Fire by Exclusive Seeds.
What environment does IronSmith OG 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.
📷 Growing IronSmith OG and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing IronSmith OG? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
Track your own grow free — the journal grades your environment against these bands →
Get the one-page grow reference card
VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.