Sludge Hammer by Anomaly Seeds
Sludge Hammer lands on the sativa-leaning side of the spectrum, Anomaly Seeds's take on the 9lb Hammer × Unicorn line. Indoors it typically finishes flowering in around 56 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sludge Hammer grows against.
🌿 Start a Sludge Hammer journal — free →
Similar strains
| Breeder | Anomaly Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±56 days |
| Environment | Outdoors, Greenhouse |
| Lineage | 9lb Hammer × Unicorn |
🌱 Get Sludge Hammer seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: 9lb Hammer · Unicorn
Ancestry Pedigree
Jinxproof Genetics
Unknown or Legendary
Clone Only Strains
Sensi Seeds
Original Strains
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Unknown or Legendary
Original Strains
SubCools The Dank
Unknown or Legendary
Clone Only Strains
Original Strains
Original Strains
Unknown or Legendary
SubCools The Dank
SubCools The Dank
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
Unknown or Legendary
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
BC Growers Association
Unknown or Legendary
Original Strains
Brothers Grimm
Brothers Grimm
Sensi Seeds
Original Strains
Brothers Grimm
Brothers Grimm
Brothers Grimm
Brothers Grimm
Unknown or Legendary
Brothers Grimm
Unknown or Legendary
Brothers Grimm
Sensi Seeds
The Seed Bank
The Seed Bank
The Seed Bank
Anomaly Seeds
Deluxe Seeds
Original Strains
Deluxe Seeds
Original Strains
Original Strains
Homegrown Natural Wonders
Unknown or Legendary
Soma Seeds
Original Strains
Mr Nice Seedbank
Unknown or Legendary
Original Strains
Unknown or Legendary
MzJill Genetics
SubCools The Dank
Clone Only Strains
Original Strains
Clone Only Strains
Original Strains
SubCools The Dank
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Unknown or Legendary
BC Growers Association
Growing Sludge Hammer: 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 9lb Hammer or Unicorn 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.
Sludge Hammer FAQ
How long does Sludge Hammer take to flower?
Sludge Hammer typically flowers in around 56 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sludge Hammer an indica or a sativa?
Sludge Hammer is listed as mostly sativa.
What are the parents of Sludge Hammer?
Sludge Hammer was bred from 9lb Hammer × Unicorn by Anomaly Seeds.
What environment does Sludge Hammer 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 Sludge Hammer and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Sludge Hammer? 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.