Purple Chemdawg cannabis seeds packaging — Royal King Seeds UK
IndicaAuto
THC 17%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Purple Chemdawg Auto

AutoflowerSee Lab Report →

Grow Purple Chemdawg Auto in the UK. Indica genetics at 17% THC, known for euphoric, focused, energetic effects.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-06 on 475 seeds.

Germination rate: 97.2% (n=475)
Last QC test date: 2026-09-06
Indoor yield: 468-624 g/m² (avg across 12 verified grower reports)
Outdoor yield: 612-800 g/plant (avg across 7 verified grower reports)

About Purple Chemdawg Auto

Cured properly and opened cold, Purple Chemdawg leads with myrcene: a heavy damp-earth note with something sweet and overripe sitting behind it. Underneath it caryophyllene adds a dry peppery floor, and it reads mid-palate rather than on the first pass. This 71/29 indica tests at 17% THC, but potency is the least interesting number here: what separates Purple Chemdawg from the others on the same shelf is how the aroma behaves across a cure, and that is a question of storage and patience rather than genetics alone.

Growing it for the nose rather than the scales

Chasing terpene expression in Purple Chemdawg pulls against chasing yield, and it is worth knowing which one you are doing before you start. The Myrcene/Caryophyllene/Linalool profile does its best work in living soil, where the microbial side produces secondary compounds a bottle cannot. That is easier here than it sounds: decent peat-free compost and worm castings are a garden centre purchase in most British towns.

Through the 50-60 days of bloom, stop foliar spraying after week two — anything landing on developing trichomes is still there at harvest and you will taste it. The final three weeks decide which terpenes dominate the cured flower: nights held at 16-18°C push myrcene forward, while a warmer finish protects the lighter linalool notes at the top.

The cure is where most of the flavour is lost in this country, and the reason is the weather. A 10-14 day hang wants 15-18°C at 55-60% relative humidity, which a British autumn will not give you in a spare room — a temperature-controlled cupboard or a wine fridge set to 16°C solves it for the price of one wasted harvest. Then into glass, burped twice a day for the first fortnight. The caryophyllene layer that makes this one worth growing does not appear until somewhere between weeks three and four in the jar.

Flowering: 50-60 days. Indoor yield: up to 600 g/m2. Outdoor yield: up to 600 g/plant. Rated intermediate difficulty.

Flavour, aroma and effect

Purple Chemdawg arrives in stages. The first draw at 17% THC brings a musky earthiness that coats rather than cuts. The euphoric, focused, energetic, calm character follows within minutes, starting as weight behind the eyes and working down through the shoulders and chest. By about a quarter of an hour it has become a physical stillness — not sedation so much as a strong disinclination to get up. Two to three hours at a moderate dose. The caryophyllene underneath adds a warmth that keeps the whole thing anchored.

Terpene breakdown

Primary: Myrcene · Secondary: Caryophyllene · Tertiary: Linalool. This combination turns up often in cultivars that win things, and it is usually the one growers comment on when a jar is opened for the first time after curing. Myrcene anchors the aroma, caryophyllene occupies the middle, and linalool sits behind both — which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Who does well with Purple Chemdawg? Balcony growers in flats from Brighton to Glasgow. Anyone wanting one quick outdoor crop rather than a long project. Indoor growers short of headroom. The autoflowering genetics run on their own clock, so there is no light schedule to manage, no anxiety about light leaks, and harvest comes 10-12 weeks from germination whatever the season is doing. Difficulty is rated intermediate, which means a moderate learning curve that rewards attention without demanding a laboratory.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🧠Focused
69% of people reported feeling Focused
🤑Energetic
57% of people reported feeling Energetic
🧘Calm
53% of people reported feeling Calm
😌Relaxed
45% of people reported feeling Relaxed
😴Sleepy
45% of people reported feeling Sleepy
😊Happy
31% of people reported feeling Happy
🤤Hungry
27% of people reported feeling Hungry
🌿Stress Relief
13% of people reported feeling Stress Relief

Strain Type

Indica 71%Sativa 29%

Strain Data Sheet

🧬THC17% - 20% (Medium-High)
🌿LineageChemdawg × Granddaddy Purple
🔬TypeAutoflower Indica
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height60 – 100 cm (typical)
⚖️YieldHigh
🏠Yield Indoorup to 600 g/m2
🌳Yield Outdoorup to 600 g/plant
⏱Flowering Time50-60 days

Packaging

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Royal King Seeds
Autoflowering
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Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable United Kingdom legislation.
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Purple Chemdawg Auto
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Purple Chemdawg Auto — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F5
Generations
5+
Breeding Programme
Autoflower Programme — five-generation auto trait fixing
Stabilisation Notes — What This Means for Your Grow

Five generations of Royal King Genetics autoflower stabilisation on Purple Chemdawg. Auto trigger time, finish window and resin density all run uniform — no photo-hybrid surprises in the pack.

Breeding Goal

Lock the autoflower trait in Purple Chemdawg through five generations of selection.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
22 September 2026· 99%+ germination