Arjans Haze #2 vs Arjan's Ultra Haze 2: Which Feminized Sativa Suits You Best?

1. Introduction

When you are choosing between two related sativa strains from the same breeder, the differences can seem subtle at first. Arjans Haze #2 and Arjan's Ultra Haze 2 are both feminized sativas from Greenhouse Seed Co, and both appeal to growers who enjoy classic Haze-style genetics. However, they diverge in flowering time, genetic complexity, and how suitable they are for first-time growers versus those chasing very strong effects.

This comparison focuses on how these two strains stack up for beginners, growers interested in yield potential, and users looking for powerful effects. By the end, you should have a clearer idea of which one is more in line with your priorities before you decide which seeds to buy.

2. Quick Comparison Table

Feature	Arjans Haze #2	Arjan's Ultra Haze 2
Breeder	Greenhouse Seed Co	Greenhouse Seed Co
Seed Type	Feminized	Feminized
Type	Sativa	Sativa
Genetics	Haze and Lao	Neville's Haze × Mango Haze × Laos genetics
Flowering Time	10 weeks	12 weeks
THC	Not specified	Strong

3. Arjans Haze #2 Overview

Arjans Haze #2 is a feminized sativa from Greenhouse Seed Co, built on a blend of Haze and Lao genetics. This combination points toward a classic, uplifting sativa profile with some influence from Southeast Asian landraces, without going as far into the extreme, long-flowering territory that some Haze hybrids reach.

One of the key practical features of Arjans Haze #2 is its 10-week flowering time. For a sativa-dominant strain, ten weeks is relatively moderate and can be more manageable for growers who do not want a very long indoor cycle. While no specific yield, aroma, or effect data is provided, its genetic background suggests it is intended for growers looking for a Haze experience without the absolute longest wait before harvest.

Because this strain is sold as feminized seed, it is designed to remove the need to identify and remove male plants. That can be a meaningful advantage for first-time growers still learning to spot plant sex and manage their grow space efficiently.

Overall, Arjans Haze #2 stands out as a streamlined Haze and Lao cross, with a focus on sativa growth characteristics and a flowering time that is slightly more forgiving than many extended-flowering sativas.

4. Arjan's Ultra Haze 2 Overview

Arjan's Ultra Haze 2 comes from the same breeder, Greenhouse Seed Co, but takes a more complex genetic route. It combines Neville's Haze with Mango Haze and Laos genetics. This multi-way cross brings together several well-known Haze lines and adds more layers to the plant's heritage.

The trade-off for this complexity is a longer 12-week flowering time. This extended flowering phase can require more patience, more careful scheduling, and often more attention to plant management over time, especially indoors. For an outdoor grower in a suitable climate, it can also mean waiting further into the season before the plants are ready.

A notable characteristic of Arjan's Ultra Haze 2 is its strong THC classification. While no exact percentage is given, this description indicates that the breeder positions this strain toward users seeking particularly pronounced and potent effects. That makes it attractive for experienced consumers and growers who prioritise intensity over speed or simplicity.

Like Arjans Haze #2, Arjan's Ultra Haze 2 is supplied as feminized seed, so growers can focus on cultivating female plants without the added step of culling males. Combined with its rich Haze background, this makes it a deliberate choice for sativa enthusiasts aiming for strong, long-lasting effects and willing to handle a longer grow cycle.

5. Key Differences

General Comparison

At a glance, these two strains share several features: both are feminized, sativa-type seeds from Greenhouse Seed Co, and both trace part of their lineage back to Haze and Laos genetics. The differences arise mainly in genetic complexity, flowering time, and the emphasis on potency.

• Arjans Haze #2 is a straightforward cross of Haze and Lao, aimed at providing a classic sativa experience with a moderate flowering period of around 10 weeks.
• Arjan's Ultra Haze 2 incorporates Neville's Haze and Mango Haze in addition to Laos genetics, with a longer 12-week flowering time and a clear indication of strong THC.

In practical terms, Arjans Haze #2 leans more toward accessibility and manageability, while Arjan's Ultra Haze 2 caters to those who are prepared to invest extra time and effort in exchange for stronger effects.

Which Is Better for Beginners?

For a first-time grower or someone still gaining confidence, several aspects matter: how long the grow will take, how demanding the plants might be, and how easy it is to stay motivated through the cycle.

Arjans Haze #2 is likely the more beginner-friendly option because:

• Its 10-week flowering time is shorter than the 12 weeks required for Arjan's Ultra Haze 2, reducing the overall commitment and waiting period.
• Its simpler Haze and Lao lineage suggests a more straightforward sativa structure, which may be easier for a new grower to manage compared with a more complex multi-Haze cross.
• Both are feminized, so neither requires dealing with male plants, but the shorter schedule of Arjans Haze #2 can make it easier to complete a first grow successfully.

Arjan's Ultra Haze 2 is not necessarily unsuitable for beginners, but the 12-week flowering period demands more patience, environmental stability, and consistent care. For someone still learning the basics, these additional weeks can introduce more opportunities for mistakes or environmental changes.

Yield Comparison

No specific yield data is provided for either strain, so it is not possible to state definitively which one produces more grams per plant or per square metre. However, there are still a few useful points to consider.

• Longer-flowering sativas like Arjan's Ultra Haze 2 sometimes have the potential to build larger structures and may reward experienced growers who can support them through the full 12-week cycle.
• Shorter-flowering sativas such as Arjans Haze #2 may offer a better balance between time invested and harvest turnaround, particularly in smaller home grows or where seasonal constraints matter.

For a grower whose top priority is total yield, the deciding factor may not be the strain alone but how comfortable they are managing plants over the entire flowering period. If you can confidently maintain a stable environment for twelve weeks, Arjan's Ultra Haze 2 might reward that commitment. If you prefer a faster cycle and simpler planning, Arjans Haze #2 can be more practical.

Effects Comparison

Detailed effect descriptions are not provided for Arjans Haze #2, but we do know that Arjan's Ultra Haze 2 is described as having strong THC. This is a key differentiator for users focused on intensity.

• Arjan's Ultra Haze 2: Marketed with strong THC, it is aimed at users who prioritise powerful, pronounced effects and are comfortable with potent sativa experiences.
• Arjans Haze #2: While specific potency information is not given, its classic Haze and Lao background suggests a more traditional sativa profile without an explicit focus on being extremely strong.

For someone specifically seeking a very strong effect and who already has some experience with potent cannabis, Arjan's Ultra Haze 2 aligns more closely with that goal. Conversely, if you prefer to avoid the strongest options or if you are less familiar with high-THC sativas, Arjans Haze #2 may be the more comfortable starting point.

6. Which Should You Choose?

Your choice between Arjans Haze #2 and Arjan's Ultra Haze 2 should come down to your experience level, your patience for flowering time, and how strong you want the effects to be.

• Choose Arjans Haze #2 if:
  • You are a first-time or relatively new grower looking for a more manageable sativa.
  • You want a feminized strain with a shorter 10-week flowering time to keep your first grows simpler.
  • You prefer a classic Haze influence without explicitly targeting the strongest possible effects.
  • You value completing cycles more quickly, whether indoors or within a limited outdoor season.
• Choose Arjan's Ultra Haze 2 if:
  • You have some growing experience or are comfortable managing a longer flowering period.
  • You are specifically interested in strong THC and powerful, sativa-type effects.
  • You are willing to wait approximately 12 weeks of flowering and can maintain stable conditions throughout.
  • You want a more elaborate Haze hybrid that combines Neville's Haze, Mango Haze and Laos genetics.

Ultimately, neither choice is objectively “better” in every situation. It is a trade-off between time and intensity: Arjans Haze #2 favours practicality and accessibility, while Arjan's Ultra Haze 2 prioritises powerful effects and complex Haze lineage.

7. Final Thoughts

Both Arjans Haze #2 and Arjan's Ultra Haze 2 occupy a similar niche as feminized sativa options from Greenhouse Seed Co, but they cater to slightly different growers and users. If you are just starting out or prefer a quicker, more straightforward grow, Arjans Haze #2 is likely the more suitable pick. If you already have some experience, can commit to a longer flowering period, and want particularly strong THC-driven effects, Arjan's Ultra Haze 2 becomes the more appealing choice.

By weighing your own priorities—ease of cultivation, flowering time, and desired effect strength—you can select the strain that best fits your plans and expectations before you place your order.