Ultra Lemon Haze vs Super Lemon Haze: Which Seed Is Right for You?
1. Introduction
If you’re comparing Ultra Lemon Haze and Super Lemon Haze, you’re already looking in the right place for energetic, sativa-leaning plants with strong effects. Both are well-known names, but they differ in how they are grown, how demanding they can be for beginners, and how their genetics are put together.
This comparison looks at general differences, what each option offers first-time growers, how they compare in yield based on available information, and what to expect in terms of effects intensity. The goal is to help you decide which strain fits your priorities: ease of cultivation, strong impact, or maximising production.
2. Quick Comparison Table
| Feature | Ultra Lemon Haze | Super Lemon Haze |
|---|---|---|
| Breeder | Auto Seeds | Greenhouse Seed Co |
| Seed Type | Auto (autoflowering) | Feminized (photoperiod) |
| Genetics | Super Lemon Haze × Sour Diesel × Auto #1 | Lemon Skunk × Super Silver Haze |
| Plant Type | Sativa | Sativa |
| Flowering / Life Cycle | Autoflowering | ~10 weeks flowering (photoperiod) |
| Yield | Average | Not specified |
| THC Strength | Very strong | Not specified |
3. Ultra Lemon Haze Overview
Ultra Lemon Haze from Auto Seeds is an autoflowering sativa that blends several well-known lines into one compact package. Its genetic background crosses Super Lemon Haze and Sour Diesel, then incorporates Auto #1 to introduce the autoflowering trait. This means it will automatically move from vegetative growth into flowering without relying on a strict light schedule.
As an auto, Ultra Lemon Haze typically has a shorter overall life cycle compared with traditional photoperiod sativas. You don’t need to change your lighting hours to trigger flowering, which can simplify planning for new growers or those running smaller, straightforward setups.
The strain is described as having “very strong” THC levels. While exact percentages are not provided, this classification suggests that its effects are on the powerful end of the spectrum. For users seeking a pronounced impact, this makes Ultra Lemon Haze appealing, though beginners or those with low tolerance may want to approach it gradually.
In terms of production, Ultra Lemon Haze is listed as having an “average” yield. It is not positioned as an extreme heavy yielder nor as a very low producer, but rather somewhere in the middle. Growers focused solely on maximum harvest size may want to consider this when planning their grow, although autos often compensate with faster turnover and simpler schedules.
Overall, Ultra Lemon Haze suits growers who want a strong sativa experience but prefer the convenience of autoflowering genetics and are comfortable with moderate yields in exchange for easier timing and management.
4. Super Lemon Haze Overview
Super Lemon Haze by Greenhouse Seed Co is a feminized, photoperiod sativa. Its pedigree combines Lemon Skunk with Super Silver Haze, two established names in the haze and skunk families. Unlike an autoflower, Super Lemon Haze relies on changes in light schedule to begin flowering, giving the grower more control over how long to keep plants in the vegetative stage.
The flowering time is specified at around 10 weeks. This is fairly typical for sativa-dominant plants and means you should expect a somewhat longer flowering period than many indica-leaning strains. However, because vegetative growth can be extended or shortened, experienced growers can fine-tune plant size and potential yield before switching to 12/12 lighting indoors.
No specific THC data is provided, but given its heritage and reputation, it is typically chosen by users who appreciate a pronounced sativa effect. Still, since exact potency figures are not available in this data, it’s best not to assume a particular strength level beyond the general expectation of a haze-style impact.
Yield figures are not specified for this strain in the provided data. For buyers, this means expectations should be set more generally: photoperiod sativas like Super Lemon Haze can often be trained and vegged longer to increase potential harvests, but the actual result will depend heavily on grow conditions and your skill level.
Altogether, Super Lemon Haze is suited to growers who are comfortable managing light cycles and plant training, and who want the flexibility that feminized photoperiod seeds offer in shaping plant size and harvest timing.
5. Key Differences
General Comparison
The biggest distinction between Ultra Lemon Haze and Super Lemon Haze lies in how they grow. Ultra Lemon Haze is an autoflowering sativa from Auto Seeds, while Super Lemon Haze is a feminized photoperiod strain from Greenhouse Seed Co.
- Ultra Lemon Haze has an autoflowering life cycle, combining Super Lemon Haze, Sour Diesel, and Auto #1 genetics. It’s designed to run from seed to harvest without light schedule changes.
- Super Lemon Haze is a classic feminized sativa that needs a change in day length to trigger flowering and has a listed 10-week flowering period.
Another key difference is potency information. Ultra Lemon Haze is explicitly labelled as having “very strong” THC, while no THC strength is given for Super Lemon Haze in this dataset. This makes Ultra Lemon Haze the clearer choice if you’re specifically targeting very intense effects and want that indicated upfront.
Which Is Better for Beginners?
For a first-time grower, the choice often comes down to simplicity versus control.
- Ultra Lemon Haze (autoflower) tends to be easier from a scheduling standpoint. You don’t need to worry about switching to a 12/12 light cycle, and the plant will flower automatically. This can be less intimidating for beginners who want a more “set and forget” pathway, as long as basic conditions are met.
- Super Lemon Haze (feminized photoperiod) gives you more control over plant size and structure because you decide when to initiate flowering. However, it demands that you manage light schedules carefully, which can be a learning curve for new growers.
If your main goal is to get through your first grow with fewer variables, Ultra Lemon Haze is likely the more beginner-friendly option simply due to its autoflowering nature. If you feel comfortable managing lighting and want to learn classic photoperiod techniques from the start, Super Lemon Haze can be a good teacher but may be more demanding.
Yield Comparison
Yield is an important factor for many growers, especially those focused on production. However, the available data gives clearer information for only one of these strains.
- Ultra Lemon Haze is described as having an “average” yield. This sets a realistic expectation: it is neither marketed as a low producer nor as an exceptional heavyweight.
- Super Lemon Haze has no specific yield data provided here. With photoperiod sativas like this, yield often depends heavily on how long they are vegged, training techniques, and environmental conditions.
Because Super Lemon Haze allows extended veg time, experienced growers can often push yields higher than with many autos, but this is not guaranteed and isn’t specified in the current information. In contrast, Ultra Lemon Haze gives you a more predictable, average harvest within a relatively fixed autoflowering timeframe.
For a grower whose priority is predictable, moderate harvests with straightforward timing, Ultra Lemon Haze fits well. Growers aiming to experiment with plant training, longer veg times, and potentially larger plants might lean toward Super Lemon Haze, accepting that real-world yield will depend on their skills and setup.
Effects Comparison
Both strains are sativa types, and both are derived from well-known uplifting lineages. However, we only have explicit potency information for one of them:
- Ultra Lemon Haze is described as having “very strong” THC, indicating particularly powerful effects. This appeals to users specifically seeking intense impact.
- Super Lemon Haze does not have THC data listed in the provided information. While its parent strains suggest an energetic sativa character, we cannot state a potency level based on this dataset alone.
If your primary concern is ensuring a very strong effect and you want that clearly stated by the breeder, Ultra Lemon Haze offers more defined expectations. If you’re more focused on the classic reputation of Super Lemon Haze and are comfortable without labelled potency data, the feminized option may still be attractive.
6. Which Should You Choose?
To decide between Ultra Lemon Haze auto and Super Lemon Haze feminized, consider your experience level, goals, and growing environment:
- Choose Ultra Lemon Haze if:
- You are a beginner and want a simpler, autoflowering grow without managing light schedules.
- You prioritise clearly labelled, very strong THC effects.
- You’re comfortable with an average yield in exchange for an easier, more predictable life cycle.
- You value quick turnaround and minimal intervention over maximum plant size.
- Choose Super Lemon Haze if:
- You’re willing to handle photoperiod lighting and want more control over veg time and plant size.
- You prefer a classic feminized sativa from Greenhouse Seed Co with established haze and skunk genetics.
- You don’t mind that specific THC and yield figures are not provided and are comfortable letting your grow conditions dictate the outcome.
- You’re aiming to learn or apply training techniques that often pair well with photoperiod sativas.
For a first grow, Ultra Lemon Haze tends to be the more forgiving path. For growers who already understand light cycles or want to invest time in training and shaping their plants, Super Lemon Haze opens up more room for experimentation.
7. Final Thoughts
Ultra Lemon Haze and Super Lemon Haze share a sativa foundation and a citrus-forward heritage, but they cater to different kinds of growers. Ultra Lemon Haze, as an autoflower with very strong THC and average yields, leans toward simplicity and potency. Super Lemon Haze, as a feminized photoperiod strain with a 10-week flowering phase, offers flexibility and classic genetics for those confident in managing lighting and training.
By weighing your experience level, your tolerance for strong effects, and how much effort you want to put into managing your grow, you can choose the option that best matches your goals. For many first-time growers, Ultra Lemon Haze will be the more straightforward choice, while Super Lemon Haze appeals to those ready to invest more time for potentially larger, more customised plants.
