Lemon Haze cannabis seeds packaging — Royal King Seeds the UK
Sativa
THC 23%
🏅 Top Rated
SativaFeminizedIn Stock

Lemon Haze Feminized

Feminized PhotoperiodSee Lab Report →

Lemon Haze Feminized — sativa cannabis seeds suited to UK growing conditions. 23% THC with creative, sleepy, energetic effects. Fast, discreet UK delivery.

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About Lemon Haze Feminized

Can I grow Lemon Haze outdoors in the UK? Absolutely. This 23/77 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 8-9 weeks, placing your harvest window squarely in September or October for most UK latitudes.

What kind of yield should I realistically expect? Indoor growers pulling 425-475 g/m2 is achievable with decent LED lighting and attentive feeding. Outdoors, 500 g/plant per plant is realistic in 50+ litre pots or directly in prepared garden soil with full sun exposure. At 23% THC and a limonene-forward terpene profile, the quality-to-effort ratio makes Lemon 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 Lemon 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 23/77 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 8-9 weeks environment. Outdoor in the UK growing season (April-October) lets the plant reach its full 500 g/plant potential with natural sunlight intensity that even expensive LEDs struggle to match. Flowering: 8-9 weeks. Indoor yield: 425-475 g/m2. Outdoor yield: 500 g/plant. Plant height: 80-140 cm. Rated intermediate difficulty.

What to Expect When Using Lemon Haze

UK customers report creative, sleepy, energetic as the defining characteristics, and our experience aligns with that consensus. At 23% 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. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with limonene presence, but after three to four weeks in sealed glass jars at 16-18°C, the pinene undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180°C and 195°C captures the broadest spectrum of these terpenes — higher temperatures degrade the more volatile pinene molecules first.

Suitability and Recommendations

Lemon 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. Photoperiod genetics give you complete control over plant size and harvest timing — extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The UK growing season (April through October) accommodates the 8-9 weeks bloom period comfortably for outdoor cultivators across the country. Shipped discreetly across the UK with our germination guarantee.

Effects

🤩Creative
77% of people reported feeling Creative
😴Sleepy
72% of people reported feeling Sleepy
🤑Energetic
57% of people reported feeling Energetic
😊Happy
51% of people reported feeling Happy
😎Uplifted
45% of people reported feeling Uplifted
🤗Euphoric
40% of people reported feeling Euphoric
🧠Focused
35% of people reported feeling Focused
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Strain Type

Indica 23%Sativa 77%

Strain Data Sheet

🧬THC23% - 27% (High)
🌿LineageLemon Skunk × Silver Haze
🔬TypeFeminized Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height80-140 cm
⚖️YieldMedium – High
🏠Yield Indoor425-475 g/m2
🌳Yield Outdoor500 g/plant
Flowering Time8-9 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
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.
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Lemon Haze Feminized
royalkingseeds.co.uk
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Lemon Haze Feminized — 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 IBL
Generations
5+
Breeding Programme
Royal King Genetics IBL — heritage cultivar restabilisation
Stabilisation Notes — What This Means for Your Grow

One of the longest-running stabilisation projects in our catalogue. Lemon Haze traces its origins to late-1990s legacy stock, and the Royal King Genetics team has layered five generations of inbred selection on top. Pheno drift has been pulled out of the line; pack-after-pack, what you grow runs true.

Breeding Goal

Restabilise a late-1990s legacy cultivar to contemporary uniformity standards.

Selection Focus

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

Pollen / Mother Source

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

Last Batch QC Verified
17 April 2026· 99%+ germination