Indica Dominant · Seed Junky Genetics
Purple Punch
Purple Punch is the Larry OG x Granddaddy Purple cross attributed to Supernova Gardens and circulated widely through Seed Junky Genetics in the late 2010s. The strain became one of the dominant evening indicas on the California dispensary market by 2018, anchoring a dessert-strain category that emphasized purple coloration and grape-candy terpenes. Plants finish in seven to eight weeks with dense, deep-purple buds when run under cool nights, and yields land at the upper-middle range for an indica. The high is heavy and physical with a fast onset, which makes it a common evening or bedtime pick rather than a daytime strain.
Reviewed 2026-05-23· Sources: seedfinder.eu, Seed Junky retailer notes, leafly
Potency
- THC range
- 18–25%
- Typical THC
- 22%
- CBD
- up to 0.2%
Flowering
- Indoor weeks
- 7–8 wk
- Difficulty
- Easy
- Climate
- Mediterranean, cool nights
Yield & size
- Indoor
- 450-550 g/m²
- Outdoor
- 500-700 g/plant
- Height
- 90-120 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Purple Punch smells, tastes, and ultimately feels in the body.
- dominant
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- secondary
Limonene
Uplifting citrus — typically associated with mood elevation and stress relief.
- secondary
Pinene
Alert and pine-forward — associated with mental clarity and bronchodilation.
- minor
Myrcene
Sedating, musky, herbal — commonly linked to couch-lock effects.
Reported side effects
Lineage
Purple Punch traces to Larry OG × Granddaddy Purple. The cross sits in the Purple / Kush family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Purple Punch 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 Purple Punch
Purple Punch is a parent of 3 strains in the broader catalogue. These are crosses that carry Purple Punch genetics on at least one side of the cross.
Grow profile
Grow profile
- Indica / sativa
- 80% / 20%
- Flowering days
- 49–56 days
- Stretch
- Low
- Pest resistance
- Moderate
- Mold resistance
- Moderate
- Training methods
- topping, lst
Feed schedule for Purple Punch
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
Purple Punch 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 Purple Punch 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 Purple Punch. 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)
- Purple Punch 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 Purple Punchnote 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 Purple Punch 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 Purple Punch describe the Caryophyllene-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 Purple Punch runs end here, within the 7-8 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Common questions about Purple Punch
Who actually bred Purple Punch?
The original cross is credited to Supernova Gardens. Seed Junky Genetics circulated the most widely available seed version, and the genetics moved through several breeder partnerships before becoming a dispensary mainstay.
Does Purple Punch always finish purple?
Only under cool night temperatures. Phenotypes grown in warm climates finish green or only lightly purple-tinted.
Breeder of record
Seed Junky Genetics
View breeder profile and other strains →
More from Seed Junky Genetics
Strains similar to Purple Punch
These picks lean on the same terpene profile and parent genetics as Purple Punch — 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.