Humulus Japonicus by Alchemist's Vault
1 other breeder's version of Humulus Japonicus — compare flowering times side by side →
Humulus Japonicus is a hybrid cannabis strain from Alchemist's Vault, bred by crossing Humulus Japonicus. 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 Humulus Japonicus grows against.
🌿 Start a Humulus Japonicus journal — free →
Similar strains
| Breeder | Alchemist's Vault |
|---|---|
| Flowering time | ±60 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Humulus Japonicus |
🌱 Get Humulus Japonicus seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Humulus Japonicus
Ancestry Pedigree
Unknown or Legendary
Original Strains
Growing Humulus Japonicus: what to expect
As a hybrid, expect a moderate stretch after the flip (around 100%) — but watch the plant, not the label: phenotypes within Humulus Japonicus can lean either direction. Growers familiar with Humulus Japonicus 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.
Humulus Japonicus FAQ
How long does Humulus Japonicus take to flower?
Humulus Japonicus 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 Humulus Japonicus an indica or a sativa?
The breeder doesn't specify — treat it as a hybrid and read the plant.
What are the parents of Humulus Japonicus?
Humulus Japonicus was bred from Humulus Japonicus by Alchemist's Vault.
What environment does Humulus Japonicus 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 Humulus Japonicus and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Humulus Japonicus? 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.