Arjan's Ultra Haze 2 vs Arjan's Ultra Haze: Which Feminized Sativa Fits You Best?
1. Introduction
Choosing between Arjan's Ultra Haze 2 and the original Arjan's Ultra Haze can be challenging, especially if you are new to growing or you are simply looking for a strong, satisfying sativa experience. Both are feminized seeds from Greenhouse Seed Co and both are built on Neville's Haze genetics, so they share some important traits, including a strong THC profile and a long flowering phase.
This comparison focuses on what matters most to many buyers: how they differ in their genetic make-up, what that might mean for beginners, and how they compare in terms of potential yield and effects based on their breeding background, without inventing specific numeric values or unlisted characteristics.
2. Quick Comparison Table
| Feature | Arjan's Ultra Haze 2 | Arjan's Ultra Haze |
|---|---|---|
| Breeder | Greenhouse Seed Co | Greenhouse Seed Co |
| Seed Type | Feminized | Feminized |
| Type | Sativa | Sativa |
| Genetics | Neville's Haze × Mango Haze × Laos genetics | Neville's Haze × Cambodian × Lao genetics |
| Flowering Time | 12 weeks | 12 weeks |
| THC | Strong | Strong |
3. Arjan's Ultra Haze 2 Overview
Arjan's Ultra Haze 2 is a feminized sativa from Greenhouse Seed Co, bred from Neville's Haze crossed with Mango Haze and Laos genetics. This blend combines classic haze lineage with influences that are often associated with uplifting, clear sativa profiles. While specific flavour notes and detailed effect descriptions are not listed here, its categorisation as a strong THC sativa suggests it is aimed at users seeking pronounced cerebral effects rather than a mild experience.
With a flowering time of around 12 weeks, Arjan's Ultra Haze 2 fits into the longer side of the flowering spectrum, which is typical for haze-dominant sativas. This extended period means it is better suited to growers who are comfortable waiting for a full, slow-maturing cycle rather than those seeking a fast turnaround.
As feminized seeds, plants from Arjan's Ultra Haze 2 are bred to produce female plants, which is helpful for growers who want to avoid the hassle of identifying and removing males. For a first-time grower, this reduces one layer of complexity, although the long flowering period and sativa structure may still require patience and some basic grow management.
4. Arjan's Ultra Haze Overview
The original Arjan's Ultra Haze also comes from Greenhouse Seed Co and is likewise offered as a feminized sativa with strong THC. Its genetic foundation is Neville's Haze crossed with Cambodian and Lao genetics. This composition leans heavily into Southeast Asian sativa influences, which are often chosen by growers looking for energetic, head-focused effects, though specific effect descriptions are not provided here.
Arjan's Ultra Haze shares the same 12-week flowering time as its “2” counterpart, placing it in the same general category of long-flowering haze hybrids. Growers should plan for a full three months of flowering, which again favours more patient cultivators.
Because it is also feminized, Arjan's Ultra Haze removes the need to monitor for male plants, simplifying the process for beginners. However, as with many sativa-dominant varieties, plant structure and height control can still ask a bit more of the grower than a short, fast-finishing strain would.
5. Key Differences
General Comparison
Both strains are very similar on paper: feminized, sativa-dominant, strong THC, and with an identical 12-week flowering time. The main distinction lies in the secondary genetics layered onto the Neville's Haze base:
- Arjan's Ultra Haze 2: Neville's Haze × Mango Haze × Laos genetics.
- Arjan's Ultra Haze: Neville's Haze × Cambodian × Lao genetics.
This subtle genetic shift means Ultra Haze 2 introduces Mango Haze into the mix, while the original Ultra Haze leans more on Cambodian influence. In practice, this may translate into differences in expression, such as growth pattern, nuances in the high, or subtle aroma and flavour variations, but specific, confirmed characteristics beyond the data given are not listed here.
Which Is Better for Beginners?
For a first-time grower, the key considerations are usually how demanding the plant is and how complex the grow management will be. Both Arjan's Ultra Haze 2 and Arjan's Ultra Haze share some traits that beginners should be aware of:
- Long flowering time: At 12 weeks, neither strain is fast-finishing, so beginners must be comfortable with a longer schedule.
- Sativa structure: As sativas, they can require more attention to training and height management than compact indica-dominant plants.
- Feminized seeds: This helps new growers by reducing the risk of unwanted male plants.
Because both strains have the same flowering time and both are strong THC sativas from the same breeder, there is no clear beginner advantage in the data provided. In practical terms, a beginner’s choice is more likely to come down to which genetic combination they are more curious about:
- Choose Arjan's Ultra Haze 2 if you like the idea of Neville's Haze combined with Mango Haze and Laos genetics.
- Choose Arjan's Ultra Haze if you prefer Neville's Haze with Cambodian and Lao influences.
For someone completely new, the more important question may be whether a 12-week sativa is the right starting point at all. If you are set on a haze-style plant and ready to be patient, either option can work as a first project, provided you are prepared to learn the basics of sativa training and flowering management.
Yield Comparison
Specific yield figures are not provided for either Arjan's Ultra Haze 2 or Arjan's Ultra Haze, so it is not possible to state that one clearly outperforms the other in terms of grams per plant or per square metre. Based on the shared haze-dominant background and identical 12-week flowering time, it is reasonable to expect that they occupy a similar yield range among long-flowering sativas, but there is no explicit data here confirming that one gives higher harvests than the other.
If yield is your main priority, you will likely want to consider your own setup and experience level rather than relying solely on the small genetic distinction between these two strains. Training techniques, lighting, nutrients, and overall plant care are likely to have a bigger impact on final weight than the difference between Mango Haze versus Cambodian influence in the lineage.
Effects Comparison
Both strains are described as having strong THC, which suggests that they are intended for users seeking pronounced effects rather than something subtle. However, detailed descriptions of how those effects feel (for example, how energising, how long-lasting, or how balanced) are not included in the data.
From a purely genetic perspective:
- Arjan's Ultra Haze 2 may reflect a combination of Neville's Haze, Mango Haze, and Laos traits, potentially giving it a particular take on the classic haze-style high.
- Arjan's Ultra Haze may express qualities tied to Neville's Haze with Cambodian and Lao genetics, providing a slightly different interpretation of a strong sativa effect.
Without specific effect breakdowns, there is no reliable basis to claim that one is “stronger” or markedly different in impact than the other beyond the shared label of strong THC. For a user specifically looking for strong effects, both strains clearly sit in that category, and the choice is more about which genetic combination you find more intriguing.
6. Which Should You Choose?
The decision between Arjan's Ultra Haze 2 and Arjan's Ultra Haze largely comes down to how you weigh genetics, your experience level, and your goals as a grower or consumer.
- For first-time growers: Neither strain is especially “easy” in the sense of a short, compact plant with a quick finish. Both are long-flowering sativas, so expect to commit to a full 12-week bloom and some basic training. If you are drawn to haze genetics and are prepared for a learning curve, you can choose either; the feminized nature of both makes them somewhat more approachable than regular seeds.
- For users seeking strong effects: Both are clearly positioned as strong THC sativas. Since there is no more detailed effect data available, your choice is best guided by which heritage you prefer: the Mango Haze–influenced profile of Arjan's Ultra Haze 2 or the Cambodian-influenced original Arjan's Ultra Haze.
- For growers focused on yield: With no specific yield data to compare, it is more practical to view them as roughly similar in potential productivity, assuming good conditions. Your own skills and environment will have more influence over the final result than the modest genetic difference between them.
- For buyers comparing subtle character: If you enjoy exploring different haze lineages, Ultra Haze 2 may appeal if you are curious about what Mango Haze and Laos can add to Neville's Haze. The original Ultra Haze fits those who want a Cambodian and Lao twist on the same foundational haze genetics.
7. Final Thoughts
Arjan's Ultra Haze 2 and Arjan's Ultra Haze sit very close together in terms of breeder, type, seed format, flowering time, and THC strength. The main difference is in their supporting genetics, with Mango Haze versus Cambodian influence. For a first-time grower, they represent a similar level of challenge and reward: long-flowering, feminized, strong sativa plants that ask for patience but can be very satisfying for those who want to grow haze-style genetics.
If you cannot decide based on the available information, a straightforward approach is to pick the lineage that appeals most to you now—then consider trying the other strain later to experience how these two related sativas from Greenhouse Seed Co compare in your own garden and usage.
