Indica · Sensi Seeds
Hash Plant
Hash Plant is the Sensi Seeds indica selection released in the mid-1990s working from an Afghani Hash Plant clone that Neville Schoenmakers and the original Sensi breeding team isolated for resin production rather than dry-flower yield. The strain finishes in roughly seven to eight weeks indoors — among the fastest-finishing indica lines in commercial seed form — and produces dense, resin-coated buds with the namesake pressed-hash terpene profile that gave the line its name. The high is heavy and sedative, leaning toward couch-lock and body relaxation, and the strain has been a benchmark Afghan-leaning indica for European hash producers for nearly three decades. Hash Plant's genetics have contributed to a long list of downstream crosses, including the Hash Plant Haze, NL5 Haze, and several Mr. Nice hash-production lines built from Shantibaba's preserved Sensi mother stock. The Sensi release is the canonical commercial version, and the strain remains in continuous production as one of the bank's longest-running indica catalogue staples.
Reviewed 2026-05-23· Sources: seedfinder.eu, Sensi Seeds catalogue
Potency
- THC range
- 18–22%
- Typical THC
- 20%
- CBD
- up to 0.6%
Flowering
- Indoor weeks
- 7–8 wk
- Difficulty
- Easy
- Climate
- Mediterranean, warm temperate, indoor
Yield & size
- Indoor
- 425-525 g/m²
- Outdoor
- 450-650 g/plant
- Height
- 70-110 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Hash Plant smells, tastes, and ultimately feels in the body.
- dominant
Myrcene
Sedating, musky, herbal — commonly linked to couch-lock effects.
- secondary
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- secondary
Humulene
Hoppy and earthy — appetite-suppressing and shared with hops and sage.
- minor
Pinene
Alert and pine-forward — associated with mental clarity and bronchodilation.
Reported side effects
Lineage
Hash Plant traces to Northern Lights × Afghani Hash Plant. The cross sits in the Afghan indica family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Hash Plant based on breeder catalogues. Library entries are clickable; ancestors not yet documented on this site appear in a lighter, non-linked box.
Strains crossed with Hash Plant
Hash Plant is a parent of 3 strains in the broader catalogue. These are crosses that carry Hash Plant genetics on at least one side of the cross.
Grow profile
Grow profile
- Indica / sativa
- 90% / 10%
- Flowering days
- 49–56 days
- Stretch
- Low
- Pest resistance
- High
- Mold resistance
- Moderate
- Training methods
- lst, topping, scrog
Feed schedule for Hash Plant
These EC and NPK targets are starting points calibrated for the strain's Indica lean and easy difficulty rating — not gospel. Drop 15-20% off any EC ceiling on your first run and let the plant tell you where it actually wants to feed.
Suggested feed schedule
- Late veg
- 1.1-1.3 EC
- Early flower
- 1.2-1.4 EC, NPK 2-3-4
- Mid flower
- 1.5-1.7 EC, NPK 1-4-6
- Late flower
- 1.3-1.5 EC
- Final week
- Plain pH-balanced water for the last 5-7 days.
Full breakdown of feed math, runoff testing, and salt buildup in our nutrient guide.
What to expect through the grow cycle
Hash Plant is documented with a 8-week flower and a compact stretch typical of indica-leaning structure. The visual below maps a documented 12-week cycle built from 4weeks of vegetative growth and the strain's published flowering window.
Published grow reports for Hash Plant concentrate the most observational notes on the late-flower ripening window. This timeline is descriptive — it reflects what reports document, not a how-to. Actual week-to-week behaviour varies with phenotype, light intensity, pot size, and environment.
Phase details
- Veg (weeks 1-4)
- The documented vegetative period for Hash Plant. Plants establish root structure, leaf canopy, and node count before flower triggering, with a easy difficulty rating shaping how forgiving the early canopy work tends to be.
- Stretch (weeks 5-7)
- Hash Plant is documented as having low stretch. Reports describe the plant roughly doubling in height during this phase as the indica-leaning structure establishes its final flowering frame.
- Bud sites (week 8)
- Pre-flowers form at the nodes and calyxes begin to develop. Grow reports for Hash Plantnote this as the window where the canopy's eventual bud distribution becomes visible.
- Bud development (weeks 9-10)
- Flowers thicken and calyxes fatten through this phase. Documented Hash Plant runs show the bulk of visible flower mass accumulating here, with resin production accelerating toward the end.
- Ripening (week 11)
- Trichomes transition from clear toward cloudy and amber. Reports for Hash Plant describe the Myrcene-led terpene profile maturing through this window, with aroma sharpening week over week.
- Final (week 12)
- Calyx swelling is documented as complete and the harvest window opens. Published Hash Plant runs end here, within the 7-8 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Common questions about Hash Plant
Is Hash Plant good for hash production?
Yes — that is the original selection criterion. The Sensi line was specifically isolated from Afghani Hash Plant clone stock for resin density rather than dry-flower yield, and trichome coverage at harvest makes it one of the better indica options for ice-water hash, dry sift, and rosin pressing.
How fast does Hash Plant finish?
Seven to eight weeks indoors, which is among the fastest commercial photoperiod indica finishes available. The fast cycle, low stretch, and high resin production combine to make Hash Plant one of the more efficient indica lines for indoor commercial growing.
Breeder of record
Sensi Seeds
View breeder profile and other strains →
More from Sensi Seeds
Strains similar to Hash Plant
These picks lean on the same terpene profile and parent genetics as Hash Plant — shared dominant terps, overlapping lineage, and matching indica/sativa lean. No star ratings or popularity contests, just overlap on the traits that actually drive a similar grow and smoke.