Super Lemon Haze cannabis seeds packaging — Royal King Seeds the UK
Sativa
THC 25%
High Potency
SativaFeminizedIn Stock

Super Lemon Haze Feminized

Feminized PhotoperiodSee Lab Report →

Order Super Lemon Haze Feminized seeds online. A quality sativa cultivar at 25% THC delivering happy, energetic, creative. Suited to all UK climate zones. Fast shipping and guaranteed germination.

Select Pack Size
£11.84
1
🇦🇺Free AU Delivery
🌱Germination Promise
🔒Unmarked Packaging

About Super Lemon Haze Feminized

Here is what Super Lemon Haze delivers at harvest: up to 800 gr/m2 per square metre indoors, up to 1200 gr/plant per plant outdoors in UK conditions, with resin production peaking at 25% THC. Those numbers tell a story when you work backwards through the 10 weeks window. Unlike quick-finishing indicas, this 14/86 cultivar distributes its weight gain across the full flowering period. Patience is non-negotiable — growers who chop early because they are anxious about autumn weather sacrifice 20-25% of their potential yield. For UK outdoor grows, that means committing to a harvest window from mid-March through April, depending on your latitude. The terpinolene-dominant terpene profile reaches peak complexity only in the final fortnight.

Maximising Your Harvest

To reach the upper end of this strain's yield potential (up to 800 gr/m2 indoors, up to 1200 gr/plant outdoors), focus your efforts on three critical windows during the 10 weeks period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Stretch can reach 50-60% of pre-flower height. Supercrop any branches that outpace the canopy within the first week to maintain an even light field.

Window 2: Weeks 3-5 of bloom. Terpinolene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8°C to encourage terpene accumulation — UK autumn evenings (March-April) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26°C during lights-on and 18-20°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.

Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe — harvest at 5-10% amber to preserve the cerebral, uplifting character. Southern Hemisphere outdoor growers: this window typically falls in late March through mid-April.

Flowering: 10 weeks. Indoor yield: up to 800 gr/m2. Outdoor yield: up to 1200 gr/plant. Rated intermediate difficulty.

What to Expect When Using Super Lemon Haze

UK customers report happy, energetic, creative as the defining characteristics, and our experience aligns with that consensus. At 25% 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, bushwalks, or social barbecues. The body remains light and mobile throughout, making this a genuine daytime option for those with THC tolerance. The Terpinolene/Limonene terpene combination imparts a flavour that lingers on the palate — complex and shifting, revealing new notes across the session.

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

Terpene Breakdown

Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. 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 terpinolene dominance anchors the aroma, limonene provides mid-range character, and ocimene contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.

Suitability and Recommendations

Super 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 (October through April) accommodates the 10 weeks bloom period comfortably for outdoor cultivators in all states. Shipped discreetly across the UK with our germination guarantee.

Effects

😊Happy
72% of people reported feeling Happy
🤑Energetic
64% of people reported feeling Energetic
🤩Creative
63% of people reported feeling Creative
😎Uplifted
51% of people reported feeling Uplifted
🤗Euphoric
47% of people reported feeling Euphoric
🧠Focused
42% of people reported feeling Focused
🗣️Talkative
30% of people reported feeling Talkative
💪Motivated
31% of people reported feeling Motivated
😆Giggly
24% of people reported feeling Giggly

Strain Type

Indica 14%Sativa 86%

Strain Data Sheet

🧬THC25% - 28% (Very High)
🌿LineageLemon Skunk × Super Silver Haze
🔬TypeFeminized Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height120 – 200 cm (typical)
⚖️YieldTypical for type
🏠Yield Indoorup to 800 gr/m2
🌳Yield Outdoorup to 1200 gr/plant
Flowering Time10 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.
1
Super Lemon Haze Feminized
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
$9.47AUD
Fruity Pebbles cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 20%
🎨 Creative

Fruity Pebbles Feminized

UpliftedHappyRelaxed
$11.05AUD
Jane Doe cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 23%
🌙 Sleep Aid

Jane Doe Feminized

RelaxedEuphoricCalm
$10.66AUD
Gorilla Cookies cannabis seeds packaging — Royal King Seeds the UK
Indica
THC 24%
🎨 Creative

Gorilla Cookies Feminized

EuphoricCreativeCalm
$11.45AUD

Super 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
IBL Heritage Programme — five-generation inbred fixing
Stabilisation Notes — What This Means for Your Grow

One of the longest-running stabilisation projects in our catalogue. Super 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

Bring the original Super Lemon Haze reference profile back to true-to-type seed stock.

Selection Focus

Chosen for trichome density, sativa branching architecture and an energising terpene expression.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
6 January 2026· 99%+ germination