Arjans Haze #2 vs Arjan's Ultra Haze 2: Which Feminized Haze Is Right for You?
1. Introduction
If you are comparing Arjans Haze #2 and Arjan's Ultra Haze 2 from Greenhouse Seed Co, you are already looking in the direction of classic, long-flowering sativa genetics. Both are feminized Haze-based strains from the same breeder, yet they differ in their genetic makeup, flowering time and likely in how demanding they are in the grow room and how intense their effects feel.
This comparison focuses on what matters most for a real buying decision: how they differ in general, which one might suit beginners better, what to expect around flowering time and yield potential, and how they compare in terms of effects strength.
2. Quick Comparison Table
| Feature | Arjans Haze #2 | Arjan's Ultra Haze 2 |
|---|---|---|
| Breeder | Greenhouse Seed Co | Greenhouse Seed Co |
| Seed Type | Feminized | Feminized |
| Genetics | Haze and Lao s | Neville's Haze × Mango Haze × Laos genetics |
| Type | Sativa | Sativa |
| Flowering Time (indoors) | 10 weeks | 12 weeks |
| THC Description | Not specified | Strong |
3. Arjans Haze #2 Overview
Arjans Haze #2 is a feminized sativa from Greenhouse Seed Co built around Haze and Lao s genetics. With a reported flowering time of around 10 weeks, it sits on the shorter side for a Haze-based sativa, which often run much longer. This makes it a more approachable option for growers who want a classic Haze profile but do not want to commit to an extremely long cycle.
As a feminized strain, Arjans Haze #2 is designed to produce female plants, helping reduce the need to identify and remove males. The Haze and Lao s background suggests a strongly sativa expression in growth pattern and effects, but the exact strength, yield potential and flavour profile are not specified in the available data. For planning purposes, it is reasonable to treat it as a typical sativa that may stretch in flower and respond well to training, although exact cultivation recommendations are not stated.
For someone looking for a Greenhouse Seed Co Haze with a bit more manageable flowering time, Arjans Haze #2 offers a slightly faster route to harvest compared with many long-running sativas.
4. Arjan's Ultra Haze 2 Overview
Arjan's Ultra Haze 2, also from Greenhouse Seed Co, is a feminized sativa that leans heavily on renowned Haze lines. Its genetics combine Neville's Haze with Mango Haze and Laos influences, creating a more complex lineage than Arjans Haze #2. This heritage typically appeals to growers seeking layered, classic Haze characteristics and an intense, long-lasting experience.
Arjan's Ultra Haze 2 has a longer reported flowering time of about 12 weeks. That extended period means you are committing to a more patient indoor grow or a longer season outdoors, which is typical for many Haze-dominant varieties. The breeder notes the THC as “Strong”, signalling that this strain is aimed at users looking for powerful, pronounced effects rather than something mild.
Like Arjans Haze #2, Arjan's Ultra Haze 2 is feminized, so it is intended to deliver female plants without regular sexing and culling. However, its elaborate Haze background and strong THC indication make it better suited to growers and consumers who are specifically chasing potency and are comfortable working with longer-flowering sativas.
5. Key Differences
General Comparison
Both strains are sativa feminized seeds from Greenhouse Seed Co, but they diverge in their genetic complexity and cultivation timeline. Arjans Haze #2 is built from Haze and Lao s lines and finishes in about 10 weeks, which is relatively moderate for a Haze. Arjan's Ultra Haze 2 blends Neville's Haze, Mango Haze and Laos genetics and needs around 12 weeks to complete flowering.
The more elaborate background of Arjan's Ultra Haze 2 suggests a strain optimized for depth of character and strong impact, while Arjans Haze #2 can be seen as a slightly more straightforward Haze option with a quicker turnaround.
Which Is Better for Beginners?
For a first-time grower or someone still learning to manage sativa growth, Arjans Haze #2 is likely the more beginner-friendly of the two:
- Shorter flowering time: 10 weeks versus 12 weeks means a shorter commitment and less time managing tall, flowering sativas.
- Simpler decision-making: With less complex genetics listed, Arjans Haze #2 may behave in a more predictable way compared to the multi-Haze cross in Arjan's Ultra Haze 2, although exact grow difficulty is not specified.
Arjan's Ultra Haze 2, with its extended 12-week flowering period and strong THC description, is more likely to reward growers who already understand how to handle long-flowering sativas, plant height, and feeding over a prolonged cycle. Beginners can still attempt it, but they should be prepared for a longer learning curve and a more involved grow.
Yield Comparison
Specific yield figures are not provided for either Arjans Haze #2 or Arjan's Ultra Haze 2, so it is not possible to give a data-based answer on which one yields more. However, there are a few practical points a yield-focused grower can consider:
- Time versus turnover: Arjans Haze #2 finishes about two weeks earlier. Over a year, this could allow for more cycles, which may matter more for total annual yield than the per-plant output of a single run.
- Longer flowering often aims at quality and weight: Many long-flowering sativas, like Arjan's Ultra Haze 2 at 12 weeks, are bred with extended ripening in mind. While no specific yield numbers are given here, some growers favour such strains when they are willing to sacrifice time for potential size and density.
If your main concern is maximizing harvests per year and reducing the period that your grow space is occupied, Arjans Haze #2 has an advantage with its 10-week finish. If you are comfortable running a longer cycle in the hope of more developed flowers and you are not constrained by time, Arjan's Ultra Haze 2 is worth considering.
Effects Comparison
The available data specifically notes that Arjan's Ultra Haze 2 has “Strong” THC, while there is no THC information for Arjans Haze #2. This is a key difference if you are choosing based on how strong you want the effects to be.
- Arjan's Ultra Haze 2: Clearly positioned as a strong option. This suits experienced users or anyone deliberately seeking potent, pronounced effects from a sativa.
- Arjans Haze #2: With no THC level specified, it is best approached as an unknown in terms of intensity. It may still be powerful, but the lack of explicit “strong” labelling suggests it is not being highlighted primarily for overwhelming potency.
For users sensitive to strength or those new to sativa-dominant strains, starting with Arjans Haze #2 may be more comfortable. Conversely, users with high tolerance or a clear preference for intense effects may gravitate towards Arjan's Ultra Haze 2.
6. Which Should You Choose?
The right choice depends on your priorities as a grower and as a consumer.
-
First-time grower or beginner looking for easier cultivation:
Arjans Haze #2 is the more practical pick. The 10-week flowering window is easier to manage and reduces the time you need to maintain plants in the flowering stage. As a feminized sativa built from Haze and Lao s genetics, it gives you a genuine Haze experience without the longest possible cycle. -
User looking for strong effects:
Arjan's Ultra Haze 2 is explicitly described as having strong THC. If your main goal is a powerful, sativa-style effect and you are less concerned about the long flowering time, this strain is more closely aligned with those expectations. -
Grower focused on high yield over time:
Without hard yield data, a time-based strategy makes sense. If you want to maximise the number of harvests in a given period, Arjans Haze #2, with its 10-week flowering, may allow more frequent cycles. If you are willing to dedicate more weeks to each run for a long-flowering Haze, Arjan's Ultra Haze 2 could be appealing even though specific yields are not listed. -
Buyer comparing strains before purchase with no clear priority:
If you are undecided and new to Haze strains, starting with Arjans Haze #2 is a balanced choice: shorter flowering, still Haze-based, and less explicitly focused on intense potency. If you already know you enjoy strong sativas and you are comfortable investing more time into the grow, Arjan's Ultra Haze 2 is a logical upgrade.
7. Final Thoughts
Arjans Haze #2 and Arjan's Ultra Haze 2 share a common Haze heritage and breeder, but they cater to slightly different audiences. Arjans Haze #2 offers a more accessible entry point into feminized Haze sativas with its 10-week flowering time and straightforward genetics. Arjan's Ultra Haze 2, with its Neville's Haze and Mango Haze lineage, longer 12-week cycle and strong THC description, is better suited to growers and users who prioritise potent effects and are comfortable with long-flowering sativas.
If you are just starting out or prefer a shorter grow, Arjans Haze #2 is likely the safer choice. If your focus is strong, Haze-style intensity and you are prepared for a longer flowering period, Arjan's Ultra Haze 2 is the strain to consider. Both can deliver the kind of sativa experience Haze fans look for; the decision comes down to how much time and strength you really want.
