Grass Monkey by LED Seedz
Grass Monkey, from breeder LED Seedz, is a sativa-leaning strain descended from Jack Herer × Starfighter. Indoors it typically finishes flowering in around 57 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Grass Monkey grows against.
🌿 Start a Grass Monkey journal — free →
Similar strains
| Breeder | LED Seedz |
|---|---|
| Type | mostly sativa |
| Flowering time | ±57 days |
| Environment | Indoors |
| Lineage | Jack Herer × Starfighter |
| Descendants | Grass Fire OG, Cherry Tart |
🌱 Get Grass Monkey seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Jack Herer · Starfighter · Grass Fire OG · Cherry Tart
Ancestry Pedigree
Sensi Seeds
The Seed Bank
Original Strains
Cultivators Choice
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
Alien Genetics
Alien Genetics
The Cali Connection
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Alien Genetics
Clone Only Strains
Original Strains
Original Strains
Alien Genetics
The Cali Connection
Clone Only Strains
Original Strains
Unknown or Legendary
The Cali Connection
Clone Only Strains
Clone Only Strains
Sensi Seeds
Original Strains
Original Strains
Alien Genetics
Clone Only Strains
Unknown or Legendary
Original Strains
Original Strains
Unknown or Legendary
Growing Grass Monkey: 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 Jack Herer or Starfighter 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.
Grass Monkey FAQ
How long does Grass Monkey take to flower?
Grass Monkey typically flowers in around 57 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Grass Monkey an indica or a sativa?
Grass Monkey is listed as mostly sativa.
What are the parents of Grass Monkey?
Grass Monkey was bred from Jack Herer × Starfighter by LED Seedz.
What environment does Grass Monkey 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 Grass Monkey and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Grass Monkey? 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.