Ultra Sonja by GrindHouse
A indica-leaning cross of Cheese × Tang Tang, Ultra Sonja — released by GrindHouse — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Ultra Sonja grows against.
🌿 Start a Ultra Sonja journal — free →
Similar strains
| Breeder | GrindHouse |
|---|---|
| Type | indica/sativa |
| Flowering time | ±70 days |
| Environment | Outdoors |
| Lineage | Cheese × Tang Tang |
🌱 Get Ultra Sonja seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Cheese · Tang Tang
Ancestry Pedigree
Clone Only Strains
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
GrindHouse Medical Seeds Co
GrindHouse Medical Seeds Co
Spice of Life Seeds
Original Strains
Spice of Life Seeds
Spice of Life Seeds
Clone Only 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
Growing Ultra Sonja: 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 Cheese or Tang Tang 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.
Ultra Sonja FAQ
How long does Ultra Sonja take to flower?
Ultra Sonja typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Ultra Sonja an indica or a sativa?
Ultra Sonja is listed as indica/sativa.
What are the parents of Ultra Sonja?
Ultra Sonja was bred from Cheese × Tang Tang by GrindHouse.
What environment does Ultra Sonja 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 Ultra Sonja and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Ultra Sonja? 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.