Royal Purple Kush Auto by Emerald Triangle

Royal Purple Kush Auto strain photo
Type ruderalis/indica/sativa · autoFlower ±55 daysCross Royal Purple Kush × Ruderalis

Royal Purple Kush Auto, from breeder Emerald Triangle, is an autoflowering strain descended from Royal Purple Kush × Ruderalis. Indoors it typically finishes flowering in around 55 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Royal Purple Kush Auto grows against.

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Similar strains

Headlights Kush AutoEmerald Triangle · ±65 daysBubba Cheese AutoEmerald Triangle · ±45 daysBlueberry Headband AutoEmerald Triangle · ±63 daysRoyal Purple Kush CBDEmerald Triangle · ±60 daysOG CriticalEmerald Triangle · ±56 daysCritical Strawberry BananaEmerald Triangle · ±77 daysAuto Big DemonDivine Seeds · ±55 daysAuto BlueSeedmakers · ±55 daysAuto Critical ManFamily Ganjah · ±55 daysAuto PurpleOriginal Sensible Seeds · ±55 daysAuto White Widow CBDPyramid Seeds · ±55 daysCrop CircleCream of the Crop · ±55 daysAll Emerald Triangle →
BreederEmerald Triangle
Typeruderalis/indica/sativa
Flowering time±55 days
EnvironmentOutdoors
LineageRoyal Purple Kush × Ruderalis

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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.

🧬 Explore the family: Royal Purple Kush · Ruderalis

Ancestry Pedigree

Royal Purple Kush
Emerald Triangle
Afghanistan Indica
Original Strains
Bubba Kush
Clone Only Strains
Northern Lights
Unknown or Legendary
Afghanistan Indica
Original Strains
Triangle Kush
Clone Only Strains
OG Kush
Clone Only Strains
Thailand Sativa
Original Strains
Chem Dawg
Unknown or Legendary
Indica
Original Strains
Ruderalis
Original Strains

Growing Royal Purple Kush Auto: what to expect

Because Royal Purple Kush Auto is an autoflower it runs on age, not photoperiod: keep it under 18–20 hours of light from sprout to harvest, start in its final pot, and go easy on training after week 3 — autos never pause to recover. Growers familiar with Royal Purple Kush or Ruderalis 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.

Royal Purple Kush Auto FAQ

How long does Royal Purple Kush Auto take to flower?

Royal Purple Kush Auto typically flowers in around 55 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Royal Purple Kush Auto an indica or a sativa?

Royal Purple Kush Auto is listed as ruderalis/indica/sativa (autoflowering).

What are the parents of Royal Purple Kush Auto?

Royal Purple Kush Auto was bred from Royal Purple Kush × Ruderalis by Emerald Triangle.

What environment does Royal Purple Kush Auto 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.

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Facts compiled from public breeder listings. Growing Royal Purple Kush Auto? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.