Green Poison FAST Version vs Killer Kush Fast Version: Which Feminized Seeds Are Better for You?

1. Introduction

Green Poison FAST Version and Killer Kush Fast Version are both fast-flowering, feminized hybrids from Sweet Seeds. They appeal to growers who want to shorten the time from seed to harvest without dealing with male plants. If you are a first-time grower, chasing strong effects, or simply trying to maximise your harvests, comparing these two side by side can help you decide which one fits your priorities best.

This comparison focuses on ease of cultivation for beginners, yield potential, and how the likely effects and flavour profiles may differ based on their genetics.

2. Quick Comparison Table

Feature	Green Poison FAST Version	Killer Kush Fast Version
Breeder	Sweet Seeds	Sweet Seeds
Seed Type	Feminized	Feminized
Type	Hybrid	Hybrid
Genetics	Green Poison × Green Poison Auto	OG Kush × Auto Indica
Flowering Time	Not specified	Approx. 7 weeks
Yield	Not specified	Good
Flavour / Aroma	Not specified	Sweet, tangy citrus with chemical, diesel and kush notes

3. Green Poison FAST Version Overview

Green Poison FAST Version is a hybrid strain from Sweet Seeds created by crossing the original Green Poison with Green Poison Auto genetics. As a feminized seed line, it is designed to produce female plants, which is ideal for growers focused on bud production rather than breeding.

Because it is a “FAST Version” cross with autoflowering genetics, growers can reasonably expect a shorter flowering phase than typical photoperiod hybrids, making it attractive if you want to reduce total grow time. The exact flowering period and yield details are not specified, but the use of the same parent (Green Poison) in both sides of the cross suggests that the breeder’s intention is to retain the core character of Green Poison while speeding up the cycle.

For beginners, Green Poison FAST Version may appeal if you want a straightforward hybrid with a familiar, established genetic line behind it. The focus on a single family of genetics (Green Poison × Green Poison Auto) can be interesting if you prefer continuity in flavour and effect from a known parent strain, while still cutting down on the time to harvest.

Because specific data on flavour, effects and yield are not provided, this strain may be better suited to growers who already have a general preference for Green Poison or who are comfortable with some uncertainty in those aspects in exchange for fast turnaround and feminized convenience.

4. Killer Kush Fast Version Overview

Killer Kush Fast Version is another Sweet Seeds feminized hybrid, built from OG Kush and Auto Indica genetics. Like Green Poison FAST Version, it is a fast-flowering photoperiod line carrying autoflowering ancestry, but Killer Kush has more detailed information available for planning a grow.

The breeder states a flowering time of around 7 weeks, which is quite short for a photoperiod hybrid and a key point if you are trying to fit multiple harvests into a season or reduce indoor electricity costs. The yield is described as “good”, suggesting a reasonable balance between speed and productivity.

In terms of sensory profile, Killer Kush Fast Version is characterised by a sweet and tangy citrus flavour, with additional notes described as chemical, diesel and kush. This gives it a distinct, Kush-leaning aromatic identity that can appeal if you enjoy more pungent, fuel-like strains with a citrus twist.

As with the Green Poison cross, THC values and detailed effect descriptions are not provided. However, the presence of OG Kush and Auto Indica in its background points toward a profile that many users associate with strong, notable effects. That makes Killer Kush Fast Version a strong candidate for buyers who prioritise impact and flavour, while still needing a fast growth cycle.

5. Key Differences

General Comparison

Both strains share important similarities: they are feminized hybrids from the same breeder and use an autoflowering parent to reduce flowering time. Where they diverge is in their genetic base and the level of information available to help you plan your grow.

• Genetic style: Green Poison FAST Version stays within a single strain family (Green Poison × Green Poison Auto), while Killer Kush Fast Version blends the classic OG Kush line with Auto Indica.
• Information for planning: Killer Kush Fast Version comes with a stated 7-week flowering period and “good” yield, plus a clearly described flavour profile. Green Poison FAST Version has less published detail, so expectations about yield and taste are more open-ended.
• Flavour orientation: Killer Kush is defined by its sweet, citrus and diesel-like Kush notes; Green Poison FAST Version’s aroma is not specified, so the choice here is between a known Kush-style profile and a more uncertain, Green Poison-based character.

Which Is Better for Beginners?

For a first grow, having clear, concrete parameters can reduce mistakes. On that basis, Killer Kush Fast Version has an edge for beginners because:

• The flowering time of about 7 weeks is clearly defined, helping you schedule feeding, flushing and harvest more accurately.
• “Good” yield suggests it is unlikely to be extremely low-yielding, which can be encouraging for a new grower.
• The feminine nature of the seeds and hybrid structure should offer some resilience and predictability.

Green Poison FAST Version can also work for beginners, especially those who specifically want Green Poison genetics and are comfortable working without exact flowering or yield figures. If you are the type of new grower who prefers to experiment and learn by observing the plants rather than following a precise schedule, this strain could still be a reasonable starting point.

Yield Comparison

Yield is one of the main deciding factors for many home growers. Here, only Killer Kush Fast Version has explicit yield guidance, described as “good”. While this is still a broad term, it indicates that productivity has been a consideration in its breeding.

Because Green Poison FAST Version does not include yield figures, it is harder to directly compare. If maximising harvest weight is your primary concern and you prefer to rely on stated breeder data, Killer Kush Fast Version is the safer choice. If you are more interested in the specific Green Poison lineage and can accept more uncertainty about final harvest size, Green Poison FAST Version remains an option.

Effects Comparison

Neither product listing provides direct information on effects or THC levels, so it is not possible to state how strong or in what way each strain feels. Any detailed claim about potency or specific mental or physical impact would be speculative and is therefore avoided here.

However, their genetic backgrounds give you some broad orientation:

• Green Poison FAST Version: Built entirely on Green Poison and its autoflowering variant, it is aimed at preserving the general character of that line while shortening the flowering period. If you have used Green Poison in the past and liked its general style, this fast version is designed to deliver a similar experience more quickly.
• Killer Kush Fast Version: With OG Kush and Auto Indica as parents, this strain targets fans of Kush-style hybrids. Many buyers associate OG Kush lines with pronounced, memorable effects, so if you are looking for something that feels strong and weighty, Killer Kush Fast Version is likely to appeal, even though exact potency figures are not supplied.

For a user actively seeking “strong effects”, the Kush-based genetics of Killer Kush Fast Version may be more aligned with that goal, but keep in mind that actual intensity will also depend on how you grow, cure and use the final product.

6. Which Should You Choose?

Your choice between these two Sweet Seeds fast versions should hinge on your priorities as a grower and consumer.

• Choose Green Poison FAST Version if:
  • You prefer the idea of a consistent Green Poison lineage (Green Poison × Green Poison Auto) and want a fast-flowering version of that family.
  • You are comfortable growing without detailed published data on yield or exact flowering time.
  • Experimentation and learning from the plants matter more to you than following a predefined schedule.
• Choose Killer Kush Fast Version if:
  • You want a relatively short, clearly defined flowering period of about 7 weeks.
  • You prioritise “good” yield and want reassurance that productivity has been considered by the breeder.
  • You enjoy Kush-leaning strains with sweet, tangy citrus flavours and diesel / chemical undertones.
  • You are a beginner who benefits from having more specific information on timing and performance.

If you are buying mainly for strong, noticeable effects and distinctive flavour, Killer Kush Fast Version’s OG Kush and Auto Indica genetics, along with its detailed aroma description, make it the more straightforward pick. If you already know and like the Green Poison line and want a quicker way to grow it, Green Poison FAST Version targets that niche.

7. Final Thoughts

Both Green Poison FAST Version and Killer Kush Fast Version are fast-flowering, feminized hybrids tailored to growers who want efficiency without dealing with male plants. The decision largely comes down to whether you value the defined parameters and Kush-style character of Killer Kush Fast Version, or prefer the focused Green Poison heritage of Green Poison FAST Version despite having less specific data.

For most first-time growers, Killer Kush Fast Version will likely feel more approachable due to its clear flowering time, described yield and detailed flavour notes. More adventurous or Green Poison–oriented growers may find Green Poison FAST Version a better fit for their personal tastes and long-term projects.