Arjans Haze 3 (Greenhouse Seed Co) vs Arjan's Ultra Haze 2 (Greenhouse Seed Co) cannabis seeds comparison

Arjans Haze 3 vs Arjan's Ultra Haze 2: Which Feminized Haze Is Right for You?

1. Introduction

Arjans Haze 3 and Arjan's Ultra Haze 2 are both feminized sativa varieties from Greenhouse Seed Co, created by crossing Neville’s Haze with different Haze lines and Laos genetics. On paper they look similar, but their flowering times and THC profiles set them apart. If you are a first-time grower, chasing a big harvest, or specifically looking for stronger effects, understanding these differences will help you decide which strain fits your priorities.

2. Quick Comparison Table

Feature	Arjans Haze 3	Arjan's Ultra Haze 2
Breeder	Greenhouse Seed Co	Greenhouse Seed Co
Seed Type	Feminized	Feminized
Type	Sativa	Sativa
Genetics	Neville’s Haze × Super Silver Haze × Laos	Neville's Haze × Mango Haze × Laos genetics
Flowering Time	9 weeks	12 weeks
THC Level	Average	Strong

3. Arjans Haze 3 Overview

Arjans Haze 3 is a feminized sativa from Greenhouse Seed Co that blends Neville’s Haze with Super Silver Haze and Laos genetics. This mix keeps the classic Haze character while aiming to shorten flowering time and make cultivation more manageable than some longer-running Hazes.

One of the main points that stands out is its 9-week flowering time. For a sativa-dominant Haze hybrid, this is relatively quick, which can be attractive if you do not want an overly long grow cycle. This shorter indoor flowering window can help beginners or growers with limited time keep their first project more predictable and easier to schedule.

The THC level for Arjans Haze 3 is listed as average. It is still a sativa and can produce pronounced effects, but on paper it sits in a more moderate range than ultra-strong, high-THC strains. For people newer to sativas, or anyone who prefers a bit more control over intensity, this can be appealing.

Because detailed yield, flavour and effect descriptions are not provided in the data, it is best to approach Arjans Haze 3 as a balanced Haze option: a classic lineage, feminized for convenience, with a focus on reducing flowering time and keeping potency in a moderate bracket rather than pushing it to extremes.

4. Arjan's Ultra Haze 2 Overview

Arjan's Ultra Haze 2 is also a feminized sativa from Greenhouse Seed Co, but built from a slightly different genetic mix: Neville's Haze crossed with Mango Haze and Laos genetics. This gives it a distinct Haze family tree compared with Arjans Haze 3, and it is positioned as a more potent option.

The most obvious characteristic is the 12-week flowering time. This is considerably longer than Arjans Haze 3 and is typical of more extended, haze-based sativas. That extra time generally requires more patience, consistent grow-room management, and enough space and resources to support plants over a longer cycle.

In contrast to Arjans Haze 3, the THC level for Arjan's Ultra Haze 2 is described as strong. This marks it out as the option for users looking for more intense effects and who are comfortable with higher-potency sativas. This stronger profile means it may be better suited to experienced consumers or growers aiming specifically for a powerful end product.

Since exact yield and flavour data are not specified, the focus with Arjan's Ultra Haze 2 is best understood as a long-flowering, high-THC haze hybrid: feminized seeds, a demanding flowering period, and a clear emphasis on potency.

5. Key Differences

General Comparison

Both strains are feminized sativas from the same breeder and share Neville’s Haze and Laos in their background, but they diverge in how they balance cultivation time and strength:

Genetics: Arjans Haze 3 brings in Super Silver Haze, while Arjan's Ultra Haze 2 uses Mango Haze. This signals two different approaches to the Haze family, each with its own character.
Flowering time: 9 weeks (Arjans Haze 3) vs 12 weeks (Arjan's Ultra Haze 2), a significant three-week difference.
THC profile: Arjans Haze 3 is in the average range, while Arjan's Ultra Haze 2 is explicitly described as strong.

These contrasts make Arjans Haze 3 the more time-efficient and moderate option, and position Arjan's Ultra Haze 2 as a more intense, long-running haze for those prioritising potency.

Which Is Better for Beginners?

For a first-time grower or someone still building confidence, Arjans Haze 3 is generally the more beginner-friendly choice. The reasons come directly from the data:

Shorter flowering time: 9 weeks is easier to manage than 12 weeks, with less time for mistakes to accumulate and a faster route from seed to harvest.
Moderate THC: With average THC, Arjans Haze 3 is less likely to be overwhelming for newcomers who are still learning how sativa effects feel for them.

Arjan's Ultra Haze 2, with its strong THC and 12-week cycle, suits growers who are already comfortable with longer schedules and want a more intense experience. Beginners could still attempt it, but they should be aware that the extended flowering period demands more patience and consistent care.

Yield Comparison

Specific yield numbers are not provided for either strain, so it is not possible to say definitively which one produces more in grams or per square metre. However, there are some general points to consider without guessing exact figures:

Longer-flowering sativas like Arjan's Ultra Haze 2 are often chosen by growers willing to trade time for the potential of a larger final harvest, but this depends heavily on grow skills and conditions.
Shorter-flowering sativas such as Arjans Haze 3 can be more efficient in terms of harvests per year, allowing more cycles even if each individual run is not maximised for size.

If your priority is maximising total production over the calendar year, the faster 9-week flowering of Arjans Haze 3 may allow more frequent harvests. If you are instead focused on committing to one longer run and are prepared to manage plants for the full 12 weeks, Arjan's Ultra Haze 2 may appeal, even though no explicit yield figures are given.

Effects Comparison

While detailed effect descriptions are not listed, the THC information offers a clear point of comparison:

Arjans Haze 3: Average THC. This suggests a more moderate, manageable sativa effect level, potentially better for users who want to stay functional and avoid very intense experiences.
Arjan's Ultra Haze 2: Strong THC. This is aimed at those specifically looking for more powerful effects and comfortable with higher-potency cannabis.

Both are sativas, so you can expect them to lean towards the kind of uplift and mental activity typical for this type. The main deciding factor is how strong you want those effects to be. If you are sensitive to THC or new to sativas, Arjans Haze 3 offers a gentler entry point. If you have a higher tolerance or prefer more intense experiences, Arjan's Ultra Haze 2 is the more suitable candidate from a potency perspective.

6. Which Should You Choose?

Your decision between Arjans Haze 3 and Arjan's Ultra Haze 2 comes down to your experience level, time available, and how strong you like your sativas.

Choose Arjans Haze 3 if:
- You are a first-time grower or still learning.
- You want a quicker flowering time around 9 weeks.
- You prefer or need more moderate THC levels.
- You value easier scheduling and potentially more harvests in a year.
Choose Arjan's Ultra Haze 2 if:
- You are an experienced grower or comfortable managing a long cycle.
- You are specifically looking for strong effects from a sativa.
- You do not mind a 12-week flowering period and are happy to invest more time.
- You prioritise potency over speed and are prepared to plan around a longer grow.

7. Final Thoughts

Both Arjans Haze 3 and Arjan's Ultra Haze 2 deliver classic Haze genetics in feminized form from the same reputable breeder, but they are aimed at slightly different growers and users. Arjans Haze 3 focuses on a shorter flowering time and average THC, making it better suited to beginners or anyone wanting a more manageable project. Arjan's Ultra Haze 2 leans into a longer 12-week cycle with strong THC, appealing to growers prioritising intense effects and who can commit to a more demanding schedule.

If you are unsure, starting with Arjans Haze 3 is often the safer, more accessible option. Once you are comfortable with its growth pattern and moderate potency, you can consider stepping up to Arjan's Ultra Haze 2 when you are ready for a longer grow and stronger sativa experience.