Super Lemon Haze
Cannabis seeds
by Greenhouse Seeds
Super Lemon Haze Cannabis Seeds by Greenhouse Seeds
Super Lemon Haze is a feminised cannabis seed strain from Greenhouse Seeds that crosses Lemon Skunk with Super Silver Haze to produce a multi-award-winning Sativa-dominant plant with THC levels of 20-26%. She grows tall, yields heavily — up to 1.2kg per plant outdoors — and delivers a flavour profile that genuinely lives up to the name. Available in packs of 3, 5, or 10 seeds.
Which Pack Size?
| Pack | Seeds | Best For |
|---|---|---|
| 3 seeds | 3 | First run or a single ScrOG setup — enough to select a strong pheno |
| 5 seeds | 5 | Most growers — gives you room for phenotype selection and one backup |
| 10 seeds | 10 | Serious runs or growers who want the best pheno hunt from a larger pool |
We'd pick the 5-pack for most setups. It gives you enough plants to find a standout phenotype without committing to ten. If you already know you love this strain and you're filling a full room, go straight for the 10.
Flavour and Aroma of Super Lemon Haze Seeds
This is where Super Lemon Haze really earns its reputation — and its name. On the inhale you get a bright, unmistakable citrus punch: lemon, lime, and pink grapefruit layered together in a way that genuinely makes your mouth water. The exhale flips the script entirely. Earthy, musky tones roll in, backed by traces of incense and black pepper that linger well after you have finished. It is not a one-note lemon flavour; the Haze parentage adds depth that most citrus strains simply do not have.
The buds themselves are sticky and resinous, coated in trichomes with very bright, almost white stigmas poking through dense, elongated colas. The calyx-to-leaf ratio is high, which means less trimming and more of the good stuff. Even during the flowering phase, the grow room fills with that sharp citrus-meets-earth scent — your carbon filter will earn its keep.
Super Lemon Haze Growing Specifications
| Specification | Detail |
|---|---|
| Seed Bank | Greenhouse Seeds |
| Genetics | Lemon Skunk x Super Silver Haze |
| Seed Type | Feminised (photoperiod) |
| Dominance | Sativa-dominant |
| THC Content | 20-26% |
| Indoor Flowering Time | 9-10 weeks |
| Outdoor Harvest | Mid-October |
| Indoor Yield | 700-800g/m2 |
| Outdoor Yield | Up to 1.2kg per plant |
| Growth Pattern | Tall, Sativa-like leaves, moderate internodal distance |
| Recommended Techniques | ScrOG, LST (Low Stress Training), pruning |
| Growing Medium | High EC hydro or organic soil |
| Climate (outdoor) | Warm — comparable to California or southern Spain/Portugal |
| Available Packs | 3, 5, or 10 seeds |
Running Super Lemon Haze in a ScrOG setup? Pair these seeds with a quality grow tent and a decent carbon filter — that citrus terpene profile will fill a room fast. If you are growing in soil, organic nutrients designed for flowering will help those dense colas pack on weight during the final weeks.
Why Grow Super Lemon Haze
Most Sativa-dominant strains ask you to choose: big yields or manageable growth. Super Lemon Haze does not force that compromise. The plants grow tall and exhibit classic Sativa-like fan leaves, but the internodal distance stays moderate enough that you are not fighting a lanky, unruly mess. She responds brilliantly to pruning and training — ScrOG and LST in particular — which means you can fill a canopy evenly and push those 700-800g/m2 indoor yields without needing a warehouse ceiling.
The honest limitation? Patience. At 9-10 weeks of flowering indoors, she is not a quick turnaround. And outdoors, she needs a properly warm climate — think southern Spain, Portugal, or California. Northern European outdoor growers will struggle unless they have a greenhouse. If you are in a colder region and want something faster, Greenhouse Seeds' Super Critical finishes earlier, though it trades some of that Haze complexity for speed.
What makes Super Lemon Haze worth the wait is the combination of yield and potency. At 20-26% THC, even seasoned smokers notice the initial fast-hitting effect that gradually shifts into something more cerebral and drawn-out. The flavour alone — that citrus-to-incense journey — puts it in a different league from most strains at this productivity level. There is a reason this strain has won multiple Cannabis Cups. We have seen growers come back to Super Lemon Haze year after year; once you have dialled in her preferences, she rewards you generously.
How to Grow Super Lemon Haze Seeds
- Germinate your feminised Super Lemon Haze seeds using the paper towel method or directly in a starter plug. Keep temperatures around 22-25 degrees Celsius and maintain moisture without waterlogging.
- Transplant seedlings into their final containers once they have developed 2-3 sets of true leaves. Super Lemon Haze performs well in both high EC hydroponic systems and organic soil — choose based on your setup and experience.
- Begin LST or ScrOG training early in the vegetative phase. The plants grow tall, so controlling height before flipping to 12/12 saves headroom and creates a more even canopy. She responds very well to pruning — do not be afraid to remove lower growth that will not reach the light.
- Switch to a 12/12 light cycle to trigger flowering. Expect 9-10 weeks before the buds reach full maturity. Watch the trichomes with a loupe — harvest when they shift from clear to mostly milky with some amber.
- For outdoor growers in warm climates (southern Spain, Portugal, California, or similar): plant out after the last frost and expect harvest around mid-October. Under ideal conditions, individual plants can produce up to 1.2kg of dried flower.
- During the final 2-3 weeks of flowering, the buds will swell significantly. The dense, elongated colas will be covered in bright, almost white stigmas and heavy trichome coverage. Support heavy branches if needed to prevent snapping.
- After harvest, dry in a dark, well-ventilated space at around 18-20 degrees Celsius and 55-60% humidity for 7-14 days. Cure in airtight jars for at least 2-3 weeks to bring out the full citrus and incense terpene profile.
Frequently Asked Questions
How long does Super Lemon Haze take to flower indoors?
Super Lemon Haze takes 9-10 weeks to finish flowering indoors. This is on the longer side for a commercial strain, but the yield of 700-800g/m2 and 20-26% THC make the wait worthwhile.
Can I grow Super Lemon Haze outdoors in northern Europe?
Not easily. Super Lemon Haze needs a warm climate comparable to California or southern Spain/Portugal, and she finishes mid-October. In northern Europe, you would need a greenhouse to protect her from cold and rain during the final flowering weeks.
What training methods work best for Super Lemon Haze?
ScrOG and LST are the best techniques for Super Lemon Haze. She responds very well to pruning and training, which helps manage her tall Sativa growth and creates an even canopy that maximises light exposure and yield.
What does Super Lemon Haze taste like?
The inhale delivers bright lemon, lime, and pink grapefruit. The exhale shifts to earthy, musky tones with traces of incense and black pepper. It is a complex, layered flavour — not a simple citrus one-trick.
Is Super Lemon Haze suitable for beginners?
She is manageable but not the easiest first grow. The 9-10 week flowering time requires patience, and the tall growth needs active training. If you are comfortable with basic LST and can commit to the timeline, she is very rewarding. For a faster, more forgiving first grow, consider a shorter-flowering indica-dominant strain.
What yield can I expect from Super Lemon Haze?
Indoors, expect 700-800g/m2 with proper training and lighting. Outdoors in a warm climate, individual plants can produce up to 1.2kg of dried flower. These are top-tier yields for a Sativa-dominant strain.
Does Super Lemon Haze grow better in soil or hydroponics?
Both work well. Greenhouse Seeds specifically notes that Super Lemon Haze performs very well in high EC hydro systems as well as organic soil. Hydro tends to push faster growth and slightly higher yields; soil often brings out more terpene complexity in the final product.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.