Back-to-back High Times Cannabis Cup wins are a credential very few cultivars can claim. Super Lemon Haze did it in 2008 and 2009, and it earned those trophies with a screaming lemon terpene profile stacked on top of a true Haze high. This Super Lemon Haze strain and clone guide covers the Green House Seeds pedigree, the energetic effect profile, and how to manage a genuine sativa through a 9-10 week flower without losing your patience or your headroom. Super Lemon Haze clones are available here — a proven lemon-dominant cut, freshly rooted and HLVd screened.
Key Takeaways
- Super Lemon Haze is Green House Seeds’ cross of Lemon Skunk and Super Silver Haze, built in Amsterdam by the late Franco Loja.
- It won the High Times Cannabis Cup two years running, 2008 and 2009 — a back-to-back feat almost nothing else has matched.
- THC tests in the 19-22% range, delivering an energetic, uplifted, focused high that longtime smokers use as a morning coffee replacement.
- Flowering takes 9-10 weeks, longer than modern hybrids, but the payoff is heavy: breeder figures report up to 700 g/m2 indoors.
- Terpinolene leads the terp profile — a relative rarity that gives SLH its fresh-zested lemon nose.
- From seed, SLH throws noticeably different phenos; the clone route locks in a proven lemon-dominant selection.
Super Lemon Haze Genetics
Full credit to Green House Seeds in Amsterdam, where the late Franco Loja built this cross for Arjan’s team. The recipe is simple on paper and brilliant in the jar: Lemon Skunk for the loud citrus nose and a faster finish, Super Silver Haze for the soaring, long-lasting sativa high and a Cup-winning pedigree of its own.
Look one generation deeper and the bloodline gets even better. Behind those parents sit Skunk #1, Haze, and Northern Lights #5 — about as blue-blood as cannabis genetics get. Super Silver Haze was itself a Cup champion in the late nineties, so SLH is a second-generation champion refined for flavor and grow-ability. Where many old-school Hazes demand fourteen-week flowers and greenhouse ceilings, the Lemon Skunk side pulled the finish time and the structure into range for ordinary indoor rooms, which is a big part of why this strain conquered the world while purer Hazes stayed a specialist’s game.
Aroma, Flavor and Terpene Profile
Terpinolene leads this profile, backed by limonene, caryophyllene, and myrcene. That terpinolene-limonene combination is why the nose reads as fresh-zested lemon over sweet Haze spice rather than anything artificial or cleaning-product adjacent. Terpinolene-dominant strains are genuinely uncommon — most of the modern market is caryophyllene and limonene territory — so SLH offers something the dessert shelf simply does not have.
The flavor follows the nose: bright lemon up front, sweet and slightly tart through the middle, with that peppery, incense-like Haze spice on the finish. In a well-cured jar it is one of the most instantly recognizable profiles in cannabis. Expect the whole grow space to smell like a citrus grove from week four of flower onward.
Super Lemon Haze Effects: What To Expect
This is the classic get-up-and-go sativa. Onset is quick and clearly cerebral: an energetic, uplifted, focused high that carries a mild body ease underneath without ever getting heavy. A lot of longtime smokers treat it as a morning coffee replacement, and it fits creative work, cleaning the house, hiking, or social settings better than almost anything on the modern market.
The high runs long for a modern cultivar, so time your sessions accordingly — burn it late and it will keep you up. At 19-22% THC it has plenty of horsepower, but the character is clear-headed rather than crushing. Racy-sativa-sensitive consumers should start small; the terpinolene profile and Haze genetics can run buzzy for people prone to that reaction.
Super Lemon Haze Stats at a Glance
| Stat | Detail |
|---|---|
| Type | Sativa-dominant hybrid |
| Lineage | Lemon Skunk x Super Silver Haze (Green House Seeds) |
| THC range | 19-22% |
| Flowering time | 9-10 weeks |
| Yield | Heavy — up to 700 g/m2 indoors (breeder figure) |
| Difficulty | Moderate |
Growing Super Lemon Haze: What You Need To Know
The first thing to plan for is vertical space. SLH vegs vigorously and then stretches hard at flip — Haze blood does not apologize for it. Flip early, at a smaller plant size than you would with an indica-dominant cut, and expect the plant to double or more during stretch. If your tent tops out under six and a half feet, flip at twelve to eighteen inches and train horizontally from there.
Second: patience. Nine to ten weeks of flower is the price of a true Haze high, and cutting it at week eight because your calendar wanted it done throws away the last swell and a chunk of the effect profile. Set expectations at the start and schedule around it. The strain rewards you with genuinely heavy yields for a sativa — the breeder’s 700 g/m2 indoor figure assumes dialed conditions, but even conservative rooms pull above-average weight per watt from this cut.
Environment-wise, SLH likes it warm and bright, tolerates heat better than most, and appreciates slightly lower humidity in late flower. The long flowering window makes environmental drift more likely, so tracking your targets week by week matters more here — our VPD guide and the week-by-week clone timeline are the two references worth keeping open for this run.
Outdoors and in greenhouses, SLH is a monster in the right climate. It wants a long season — think October finishes — and rewards Mediterranean-style warmth with plants that can tower and yield accordingly. Growers in short-season northern climates should stick to greenhouse or indoor runs, because an early cold snap in week eight of a ten-week flower is a heartbreaking way to lose a crop.
Training for Maximum Yield
SLH was built for SCROG. The vigorous stretch that punishes untrained rooms becomes an asset under a net: weave the long branches through the screen for the first two to three weeks of flower and you convert stretch into an even, wall-to-wall canopy of cola sites. This single technique is the difference between a decent SLH harvest and the numbers that made its reputation.
If you are not running a screen, top once in veg and apply firm LST to break apical dominance early — the technique walkthrough in our topping and LST guide applies directly. The buds are Haze-style spears rather than dense boulders, which means the branches carry their weight better than a dessert strain would, but stakes for the main colas late in flower are still smart. Light defoliation during stretch keeps light penetrating the taller canopy.
Feeding and Nutrition
SLH is a moderate feeder with a sativa’s dislike of heavy-handedness. Keep EC on the modest side through veg and early flower, and resist matching the feeding charts written for nutrient-hungry indicas. The long flower means the plant takes nutrition over a longer arc — steady and moderate beats aggressive and front-loaded.
Where growers overdo it is nitrogen into flower: excess N on a Haze exaggerates the stretch and delays flower set. Taper N from flip, run bloom ratios patiently, and hold off on any ripening formulas until week seven at the earliest since this cut finishes late. Under LEDs, add cal-mag as standard practice. Given a ten-week flower, running clean and slightly lean also makes your end-of-run flush and fade far more predictable.
Common Problems
Height management is the classic SLH problem — growers flip too late, run out of headroom, and end up with foxtailed top colas an inch off the light. Flip early; problem solved. Second is impatience at harvest, covered above. Third is powdery mildew in humid rooms, since the long flower and tall canopy give it more time and surface to establish; airflow and humidity control are the fix.
The spear-shaped buds are actually an advantage on the rot front — they breathe better than dense nugs — but ten weeks is a long exposure window, so stay disciplined anyway. Pests treat SLH like any other plant; nothing strain-specific to report there.
Why Buy Super Lemon Haze as a Clone Instead of Seeds
The clone question matters more for SLH than for most strains, and the reason is simple: from seed, Super Lemon Haze throws noticeably different phenos. Some lean Lemon Skunk and finish faster with less of the soaring high; some lean Haze and want eleven weeks; the lemon intensity varies plant to plant. The Cup-winning experience people chase comes from lemon-dominant keeper cuts, and finding one from seed means popping a pack, flowering everything ten weeks, and hoping.
Our cut skips that entire hunt — it is a proven lemon-dominant selection, so what you flower is what won the Cups: the verified terpinolene-lemon profile, the known 9-10 week finish, the heavy yield ceiling, identical every run. It ships freshly rooted and HLVd screened with a Live-Arrival Guarantee. Get the Super Lemon Haze clone here, and if daytime cultivars are your lane, the rest of our sativa-dominant clones live on the same shelf.
There is a market argument here too. Dispensary shelves and personal stashes alike are saturated with interchangeable purple dessert hybrids, and a genuine terpinolene-lemon sativa stands out precisely because so few growers have the patience to run one. If you sell or share what you grow, SLH gives you a product with no local competition — a lane the candy strains cannot enter.
Who Is Super Lemon Haze For?
Daytime consumers, first and foremost — anyone who wants energy, focus, and flavor instead of sedation. Growers bored of the dessert-strain monoculture who want a terpinolene profile in the jar. Patient cultivators with vertical space who will trade an extra week or two of flower for a genuinely heavy harvest. And anyone who appreciates growing a piece of Amsterdam coffee-shop history with two Cups on its mantle.
Pass if you need everything finished in eight weeks flat, if your space is short and untrainable, or if your market only buys purple candy strains.
Harvesting, Drying, and Curing
Plan on 63 to 70 days of flower, and read the plant rather than the box: SLH is ready when the spear-shaped colas have swollen, pistils have mostly darkened, and trichomes run cloudy. Many Haze growers deliberately harvest at mostly-cloudy with minimal amber to preserve the energetic character — more amber pushes the effect heavier than most people want from this strain.
The drying room will smell incredible and the neighbors may notice; filter accordingly. Dry ten to fourteen days at 60/60. The lemon top notes are volatile, which makes a cold, slow dry and a careful cure non-negotiable — rush it hot and you lose the zest that defines the cultivar. Cured right, at 62% humidity for two-plus weeks, the citrus gets louder, not quieter, and jars from this strain stay impressive for months.
One last note on the finished product: SLH flower is lighter and airier in the jar than dense indica nugs, so do not judge the harvest by volume alone — weigh it. Many first-time Haze growers assume they underperformed because the buds look fluffy, then put the harvest on a scale and find the heaviest run they have ever pulled.
FAQ
How long does Super Lemon Haze take to flower?
Nine to ten weeks indoors. It is a true Haze cross, and the last two weeks add real weight and ripeness — build the schedule around the full window rather than cutting early.
Is Super Lemon Haze good for beginners?
It is moderate difficulty. The plant itself is healthy and vigorous; the challenges are managing the stretch, having the vertical space, and staying patient through a long flower. A first-timer with a tall tent and discipline can pull it off, but it punishes poor planning.
What makes the lemon flavor so strong?
The terpinolene-limonene combination, inherited from Lemon Skunk and preserved in lemon-dominant selections like our cut. Protecting that flavor is mostly a harvest-side job: slow dry, proper cure, no heat.
Does Super Lemon Haze keep you awake?
It can. The high is energetic, cerebral, and long-lasting, which is exactly why people love it in the morning and avoid it after dinner. Treat it like a strong espresso.
