Strawberry Haze cannabis seeds packaging — Royal King Seeds the UK
SativaAuto
THC 15%
😊 Beginner Pick
SativaAutoflowerIn Stock

Strawberry Haze Auto

AutoflowerSee Lab Report →

Strawberry Haze Auto seeds. A sativa cultivar at 15% THC delivering focused, happy, uplifted. Grow figures from named sources.

Select Pack Size
£11.79
1
🇬🇧Free AU Delivery
🌱Germination Promise
🔒Unmarked Packaging

About Strawberry Haze Auto

Can I grow Strawberry Haze outdoors in the UK? Absolutely. This 25/75 sativa is well-suited to the UK outdoor season running April through October. Expect taller plants that appreciate the long summer daylight hours — give it room to stretch and you will be rewarded with impressive cola development. Flowering takes 80 days seed to harvest, placing your harvest window squarely in September or October for most UK latitudes.

What kind of yield should I realistically expect? Indoor growers pulling 600 g/m2 is achievable with decent LED lighting and attentive feeding. Outdoors, 300 g/plant per plant is realistic in 50+ litre pots or directly in prepared garden soil with full sun exposure. At 15% THC and a limonene-forward terpene profile, the quality-to-effort ratio makes Strawberry Haze genuinely worthwhile.

Is this strain forgiving for newer growers? Reasonably so. A grower with basic knowledge of pH, feeding schedules, and light cycles will manage fine. It is not the most forgiving plant if you neglect it entirely, but it will not collapse at the first missed watering either.

More Questions UK Growers Ask About Strawberry Haze

What growing medium works best for this strain? For maximum flavour complexity, organic soil blended with 30% perlite and enriched with slow-release amendments (blood, fish and bone, rock phosphate, kelp meal — all readily available at a garden centre or your local hydroponics shop). For maximum yield, coco coir with automated fertigation at EC 1.4-1.8 during bloom. Both approaches produce excellent results with this sativa genetics.

How does it handle British summer heat? Better than most. The open canopy structure allows heat to dissipate naturally. In a rare UK heatwave (32°C+), midday wilting may occur but recovery is swift once temperatures drop. Shade netting at 30% reduces intensity without significantly impacting growth.

When should I start feeding bloom nutrients? Within the first week of visible pistil formation. This cultivar's 25/75 genetics shifts its nutritional demand rapidly at the transition. Phosphorus and potassium uptake increases noticeably, whilst nitrogen demand drops. An organic top-dress of bat guano and sulphate of potash works well for soil growers; hydro and coco growers should switch to a bloom-ratio formula (low N, high PK) immediately.

Indoor or outdoor — which is better for this strain? Both work. Indoor gives you control over the 80 days seed to harvest environment. Outdoor in the UK growing season (April-October) lets the plant reach its full 300 g/plant potential with natural sunlight intensity that even expensive LEDs struggle to match. Flowering: 80 days seed to harvest. Indoor yield: 600 g/m2. Outdoor yield: 300 g/plant. Plant height: 130 cm (4.27 ft). Rated intermediate difficulty.

What to Expect When Using Strawberry Haze

UK customers report focused, happy, uplifted as the defining characteristics, and our experience aligns with that consensus. At 15% THC, this sativa sits in a potency bracket where most users find a productive sweet spot. Vaporised at 175-185°C, the initial effect is a noticeable uplift in mood and mental energy that pairs well with creative projects, long walks, or an afternoon with friends. The body remains light and mobile throughout, making this a genuine daytime option for those with THC tolerance. The Limonene/Terpinolene terpene combination imparts a flavour that lingers on the palate — zesty and bright with a clean, refreshing aftertaste.

Ideal settings: creative pursuits, social gatherings, outdoor adventures, and daytime leisure.

Terpene Breakdown

Primary: Limonene · Secondary: Terpinolene · Tertiary: Pinene. This particular terpene trio appears frequently in award-winning cultivars and produces a nose that most UK growers find immediately appealing when jars are first opened after curing. The limonene dominance anchors the aroma, terpinolene provides mid-range character, and pinene contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.

Suitability and Recommendations

Strawberry Haze suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar — it will not hold your hand, but it will not punish minor mistakes harshly either. Autoflowering genetics eliminate the need for light cycle manipulation, making this ideal for UK balcony growers, guerrilla setups, and anyone wanting a fast turnaround from seed to harvest. The UK growing season (April through October) accommodates the 80 days seed to harvest bloom period comfortably for outdoor cultivators across the country. Shipped discreetly across the UK with our germination guarantee.

Effects

🧠Focused
76% of people reported feeling Focused
😊Happy
65% of people reported feeling Happy
😎Uplifted
58% of people reported feeling Uplifted
🤑Energetic
50% of people reported feeling Energetic
🤩Creative
50% of people reported feeling Creative
🤗Euphoric
40% of people reported feeling Euphoric
🗣️Talkative
30% of people reported feeling Talkative
💪Motivated
31% of people reported feeling Motivated
😆Giggly
24% of people reported feeling Giggly

Strain Type

Indica 25%Sativa 75%

Strain Data Sheet

🧬THC15% - 20% (Medium-High)
🌿LineageNorthern Lights #5 × Haze × Kali Mist × Swiss Sativa
🔬TypeAutoflower Sativa
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height130 cm (4.27 ft)
⚖️YieldHigh
🏠Yield Indoor600 g/m2
🌳Yield Outdoor300 g/plant
Flowering Time80 days seed to harvest

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable UK Commonwealth, state, and territory legislation.
1
Strawberry Haze Auto
royalkingseeds.co.uk
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

Strawberry Milkshake cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 19%
📈 High Yield

Strawberry Milkshake Feminized

RelaxedHappyEuphoric
£9.76
Jane Doe cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 23%
🌙 Sleep Aid

Jane Doe Feminized

RelaxedEuphoricCalm
£10.98
Gorilla Cookies cannabis seeds packaging — Royal King Seeds the UK
Indica
THC 24%
🎨 Creative

Gorilla Cookies Feminized

EuphoricCreativeCalm
£11.79
Lowryder cannabis seeds packaging — Royal King Seeds the UK
HybridAuto
THC 15%
😊 Beginner Pick

Lowryder Auto

FocusedCalm
£12.20

Strawberry Haze 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 selection on Strawberry Haze to lock the autoflower trait. Auto trigger reliability and haze-character terps expression both run uniform across the population — no rogue photoperiod plants in the pack.

Breeding Goal

Stabilise the recessive ruderalis trait in Strawberry Haze for uniform auto-trigger.

Selection Focus

Chosen for clear-headed terpene expression, structural manageability and a finish that lands inside the published window.

Pollen / Mother Source

Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.

Last Batch QC Verified
20 March 2026· 99%+ germination