Pineapple Mayhem cannabis seeds packaging — Royal King Seeds UK
SativaAuto
THC 16%
😊 Beginner Pick
SativaAutoflowerIn Stock

Pineapple Mayhem Auto

AutoflowerSee Lab Report →

Pineapple Mayhem Auto seeds. A sativa cultivar at 16% THC delivering euphoric, focused, calm. Grow figures from named sources.

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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 2026-09-15 on 225 seeds.

Germination rate: 96.5% (n=225)
Last QC test date: 2026-09-15
Indoor yield: 391-510 g/m² (avg across 15 verified grower reports)
Outdoor yield: 545-868 g/plant (avg across 6 verified grower reports)

About Pineapple Mayhem Auto

Read Pineapple Mayhem backwards from the harvest: up to 400 g/m2 under lights, up to 500 g/plant outdoors, with resin filling out towards 16% THC. This 11/89 cultivar spreads its weight gain across the whole of bloom instead of front-loading it the way a quick indica does. Cutting early out of nerves about the weather is the most expensive mistake made with plants of this shape. In Britain that means holding through late September and into October depending on your latitude, because the limonene-led profile only fills out in the closing fortnight.

Getting the weight out of this plant

Three stretches of the 50-60 days of bloom decide whether you reach the top of this strain's range (up to 400 g/m2 indoors, up to 500 g/plant outdoors). The rest is maintenance.

The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. It can add half again its height. Supercrop anything that breaks the line of the canopy inside the first week or you will spend the rest of bloom lighting one branch properly and five badly.

Weeks three to five. Limonene production climbs through here, and it responds to a day-night temperature gap of 6-8°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26°C lights-on and 18-20°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.

The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe — cut at 5-10% amber to keep the clear, lifted character intact. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.

Flowering: 50-60 days. Indoor yield: up to 400 g/m2. Outdoor yield: up to 500 g/plant. Rated intermediate difficulty.

What Pineapple Mayhem is actually like

Growers report euphoric, focused, calm as the defining characteristics and our own notes agree. At 16% THC this sativa sits where most people find a workable window. Vaporised at 175-185°C the first effect is lift and mental energy, suited to work that benefits from it, a long walk, or an afternoon with company. The body stays light throughout, which makes it a genuine daytime option for anyone with a tolerance. The Limonene/Terpinolene pairing leaves a clean citrus finish that clears quickly.

Best suited to creative work, company, getting outdoors, and daytime use generally.

Terpene breakdown

Primary: Limonene · Secondary: Terpinolene · Tertiary: Pinene. These three build an aroma that keeps moving through the cure. Fresh off the dry it leads with limonene; after three or four weeks sealed in glass at 16-18°C the pinene underneath comes up and the whole thing gains a layer. Vaporising between 180°C and 195°C catches the widest span of them, since the lighter pinene molecules are the first thing heat destroys.

Who it suits

Pineapple Mayhem suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Autoflowering genetics take the light cycle out of the equation, which suits balcony growers, anyone working around British daylight hours, and anyone who wants the whole thing over quickly. The April to October season accommodates a bloom of 50-60 days comfortably for outdoor growers across the country.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🧠Focused
69% of people reported feeling Focused
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🤑Energetic
44% of people reported feeling Energetic
🤩Creative
43% of people reported feeling Creative
😎Uplifted
31% of people reported feeling Uplifted
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Strain Type

Indica 11%Sativa 89%

Strain Data Sheet

🧬THC16% - 20% (Medium-High)
🌿LineageSonic Fly × Pink 2.0
🔬TypeAutoflower Sativa
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height60 – 100 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoorup to 400 g/m2
🌳Yield Outdoorup to 500 g/plant
⏱Flowering Time50-60 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
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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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Pineapple Mayhem Auto
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Pineapple Mayhem 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 Pineapple Mayhem. Auto trigger time, finish window and long-flowering uniformity all run uniform — no photo-hybrid surprises in the pack.

Breeding Goal

Reach auto trigger and finish-window uniformity for the Pineapple Mayhem pack.

Selection Focus

Chosen for terpene saturation, sativa vigour and a workable finish time despite long-flowering genetics.

Pollen / Mother Source

Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.

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