Arjans Haze vs Arjan's Ultra Haze 2: Which Feminized Sativa Fits You Best?
1. Introduction
Arjans Haze and Arjan's Ultra Haze 2 are both feminized sativa strains from Greenhouse Seed Co, aimed at growers who want powerful effects and classic haze-style genetics. While they sit in a similar category, there are important differences in potency, flowering time and overall character that can influence which one will suit you better.
This comparison looks at how these two strains stack up for first-time growers, buyers looking for strong effects, and cultivators focused on yield and long-flowering sativas. The goal is to help you decide whether Arjans Haze or Arjan's Ultra Haze 2 is the more sensible choice for your next grow or purchase.
2. Quick Comparison Table
| Feature | Arjans Haze | Arjan's Ultra Haze 2 |
|---|---|---|
| Breeder | Greenhouse Seed Co | Greenhouse Seed Co |
| Seed Type | Feminized | Feminized |
| Genetics | G13 x Haze | Neville's Haze x Mango Haze x Laos genetics |
| Type | Sativa | Sativa |
| Flowering Time | 11 weeks | 12 weeks |
| THC Description | Very Strong | Strong |
| Yield | Not specified | Not specified |
3. Arjans Haze Overview
Arjans Haze is a feminized sativa from Greenhouse Seed Co, created by crossing G13 with Haze. This pedigree combines a famous old-school line with classic haze traits, making it appealing to growers who appreciate established genetics with a strong sativa profile.
The flowering time is listed at around 11 weeks, which is on the longer side compared to many modern hybrids but fairly typical for a haze-influenced sativa. Growers considering Arjans Haze should be prepared to allow their plants more time to finish and to plan their grow space accordingly.
In terms of potency, Arjans Haze is described as having “Very Strong” THC. That positions it towards the higher end of the scale and makes it more suited to users seeking powerful, intense effects rather than something mild or subtle. If your priority is strong impact from a sativa-type strain, this characteristic is a key reason to consider it.
Because it is feminized, Arjans Haze is designed to produce female plants only, reducing the risk of males and simplifying the grow for users who do not want to deal with sexing plants. This can help first-time growers focus on basic cultivation without managing male removal.
4. Arjan's Ultra Haze 2 Overview
Arjan's Ultra Haze 2 is another feminized sativa from Greenhouse Seed Co, but with a more complex genetic background. It combines Neville's Haze with Mango Haze and Laos genetics, bringing together several well-known haze influences and a Southeast Asian component.
This genetic mix points to a strongly sativa character and a long-flowering nature. The official flowering time given is about 12 weeks, slightly longer than Arjans Haze. Growers will need to account for this extra week when planning harvests, nutrient schedules and environmental control.
The THC level is described as “Strong”, which still places it in a potent bracket, though not quite as intense as the “Very Strong” label given to Arjans Haze. For users who want clearly noticeable effects but wish to avoid the very highest intensity, Arjan's Ultra Haze 2 may offer a somewhat more manageable option.
As a feminized seed line, Arjan's Ultra Haze 2 is also aimed at simplifying cultivation. With only female plants expected, growers can focus on plant health, training techniques and flowering management rather than identifying and removing males.
5. Key Differences
General Comparison
Both strains are long-flowering sativas from the same breeder, but they are built on different foundations. Arjans Haze is a G13 x Haze cross, which tends to appeal to growers who like straightforward, classic genetics. Arjan's Ultra Haze 2 uses a three-way combination of Neville's Haze, Mango Haze and Laos genetics, making it more of a blended haze project.
In practice, this means Arjans Haze may be the simpler of the two in terms of heritage, while Arjan's Ultra Haze 2 is for those who are specifically drawn to layered haze lineages. Both demand patience due to their flowering times, but Arjan's Ultra Haze 2 asks for slightly more time under lights.
Which Is Better for Beginners?
Neither strain is aimed squarely at total beginners who want a very fast, compact, forgiving plant. Both are sativa types with long flowering periods, which naturally adds some complexity. However, a few details tilt the balance:
- Flowering length: Arjans Haze finishes in about 11 weeks, compared with 12 weeks for Arjan's Ultra Haze 2. For a novice, one less week can make scheduling and budget for electricity and nutrients a little easier.
- Potency level: Arjans Haze is rated “Very Strong” for THC, whereas Arjan's Ultra Haze 2 is simply “Strong”. For a first-time grower who is also a cautious user, the slightly lower intensity of Arjan's Ultra Haze 2 may feel less daunting.
If your main concern as a beginner is managing the grow itself, the shorter flowering time of Arjans Haze is an advantage. If your concern is handling the strength of the end product, the milder of the two—Arjan's Ultra Haze 2—could be more comfortable. For an absolute newcomer, it may come down to whether you prioritise ease of scheduling (Arjans Haze) or slightly gentler potency (Arjan's Ultra Haze 2).
Yield Comparison
Yield information is not specified for either Arjans Haze or Arjan's Ultra Haze 2, so it is not possible to state which one reliably produces more. Without data, any precise claim about grams per plant or per square metre would be speculation.
What can be said is that both are long-flowering sativas, and such strains are often grown with the expectation that the extended flowering period may be compensated by acceptable yields and the sativa-style experience. Growers focused strictly on maximum production per week of flowering time might find shorter, more compact hybrids more appealing than either of these options.
If yield is your main metric, your decision between these two will likely rest more on which flowering time you can accommodate and which type of effect you want, rather than on a proven difference in production, since that data is not provided.
Effects Comparison
Specific effect profiles are not detailed for either strain beyond their THC strength descriptions. What we do know is:
- Arjans Haze is a sativa described as “Very Strong” THC.
- Arjan's Ultra Haze 2 is a sativa described as “Strong” THC.
From this, a few general observations can be made without guessing at exact sensations. Both are likely chosen by users who want clear, pronounced effects rather than subtle ones. The difference lies in intensity: Arjans Haze is positioned at the higher end, making it more suitable for those who already have experience with potent sativas and explicitly seek that level of strength.
Arjan's Ultra Haze 2, being “Strong” but not “Very Strong,” may be a better fit for users who want robust effects while maintaining slightly more leeway in terms of intensity. For someone exploring haze-style sativas for the first time, this can be an important distinction.
6. Which Should You Choose?
Your choice between Arjans Haze and Arjan's Ultra Haze 2 should hinge on your tolerance for potency, your patience with long flowering times and your experience level.
- Choose Arjans Haze if: You want maximum strength from a sativa, you are comfortable with “Very Strong” THC, and you can manage an 11-week flowering phase. This option is suited to experienced users and growers who prioritise intensity and are ready to work with a classic G13 x Haze cross.
- Choose Arjan's Ultra Haze 2 if: You are interested in a complex haze blend with strong but slightly less extreme potency, and you accept a longer 12-week flowering schedule. This can be a more approachable choice for users who want notable effects without pushing potency to the absolute limit.
For a first-time grower who is also new to strong sativas, Arjan's Ultra Haze 2 may be the gentler entry in terms of effects, despite the extra week of flowering. For a beginner who feels confident about handling potency but wants to minimise grow time within the haze category, Arjans Haze could be more attractive.
If your main focus is yield, neither strain provides explicit production data, so you may want to base your decision on how long you are willing to flower your plants and which potency level you prefer. In that case, Arjans Haze offers a slightly faster turnaround, while Arjan's Ultra Haze 2 trades an extra week for a more moderated THC description.
7. Final Thoughts
Arjans Haze and Arjan's Ultra Haze 2 occupy a similar niche: feminized, haze-based sativas from the same breeder, aimed at those who value strong effects and are comfortable with extended flowering times. The main dividing lines are potency and timing—“Very Strong” vs “Strong” THC, and 11 weeks vs 12 weeks.
If you seek the highest intensity and can commit to a long but not excessive flowering period, Arjans Haze is the more suitable choice. If you prefer slightly less intense effects and are drawn to a more intricate haze lineage, and you do not mind waiting an extra week, Arjan's Ultra Haze 2 is likely the better fit. By weighing your tolerance, growing experience and time frame, you can choose the strain that matches your priorities most closely.
