Speedy Chile Fast Version vs Black Muffin F1 Fast Version: Which Feminized Fast Strain Should You Grow?
1. Introduction
When you’re choosing between two fast-flowering feminized strains, the details around flowering time, plant type and potency can make a real difference to your grow. Speedy Chile Fast Version by Royal Queen Seeds and Black Muffin F1 Fast Version by Sweet Seeds are both designed to finish quickly, appeal to growers who don’t want to wait too long for harvest, and deliver strong THC levels. However, they differ in plant type, breeder background and some practical considerations that matter to beginners, yield-focused growers and anyone seeking strong effects.
This comparison breaks down how these two seeds stack up so you can decide which one fits your experience level, expectations on yield and preferences for plant type and strength.
2. Quick Comparison Table
| Feature | Speedy Chile Fast Version | Black Muffin F1 Fast Version |
|---|---|---|
| Breeder | Royal Queen Seeds | Sweet Seeds |
| Seed Type | Feminized | Feminized |
| Type | Hybrid | Indica |
| Genetics | Green Poison x Chile Indicas | Not specified |
| Flowering Time | < 7 weeks | 7 weeks |
| Yield | Good | Not specified |
| THC | Strong | Strong (about 17–25%) |
3. Speedy Chile Fast Version Overview
Speedy Chile Fast Version is a feminized hybrid developed by Royal Queen Seeds. Its genetics combine Green Poison with Chile Indicas, creating a hybrid lineage that balances influences from both sides of its family tree.
The most notable characteristic of Speedy Chile Fast Version is its very short flowering time. With a flowering period of under 7 weeks, it is targeted at growers who want to move from seed to harvest quickly, or those working in environments where a shorter cycle is important, such as limited outdoor seasons or tightly scheduled indoor rotations.
Royal Queen Seeds rates this strain’s yield as good. While no exact numbers are provided, this suggests it can produce a respectable harvest under reasonable conditions, which is useful if you want a balance between speed and output rather than pushing one to the extreme.
In terms of potency, Speedy Chile Fast Version is described as having strong THC. Specific percentages are not listed, but growers can expect a clearly noticeable effect profile rather than something mild. As a hybrid, its overall experience is likely to reflect both indica and sativa influences, but the exact nature of the effects is not detailed in the available data.
Because the seeds are feminized, they are designed to produce female plants, which is especially convenient for first-time growers who want to avoid identifying and removing males.
4. Black Muffin F1 Fast Version Overview
Black Muffin F1 Fast Version comes from Sweet Seeds and is also a feminized fast-flowering strain. It is classified as an indica, which usually means a more compact, bushy plant structure compared with many hybrids or sativa-leaning varieties, although plant shape can vary depending on how it is grown.
The flowering time for Black Muffin F1 Fast Version is listed as around 7 weeks. This places it firmly in the fast category and makes it a good option for growers who value a relatively quick turnaround. While it may not be quite as rapid as a strain finishing in less than seven weeks, it still fits well in a short-cycle grow plan.
THC levels for this strain are clearly defined as strong, with a range of about 17 to 25 percent
Like Speedy Chile, this is a feminized seed line, meaning it is bred to produce female plants. That reduces the risk of unwanted males and simplifies the process for hobby growers and beginners. The genetics beyond its indica classification are not specified, so while it is clear which broad plant type it belongs to, the precise parent strains are not disclosed in the available data. Both strains are fast-flowering, feminized options designed for growers who value speed and strong THC content. The main structural differences are: From the available data, both strains share several features that suit new growers: feminized seeds and a fast flowering time. However, a few points may help beginners choose: Overall, both are suitable on paper for first-time growers thanks to their feminized nature and quick finish. Speedy Chile Fast Version edges ahead slightly for beginners who want clearer expectations on yield and the shortest possible flowering time, while Black Muffin F1 Fast Version may appeal more to novices focusing on indica plants and clearly defined THC strength. Yield is one of the bigger differences in the available data: If you’re a grower putting strong emphasis on harvest size, Speedy Chile Fast Version offers more concrete assurance, at least at a descriptive level. With Black Muffin F1 Fast Version, yield expectations are more uncertain and will rely on breeder reputation, grower reports and how well you manage your environment. Direct effect descriptions such as mood or body sensations are not provided for either strain, so we must rely on what is known: For users looking primarily for strong effects, both strains qualify. Black Muffin F1 Fast Version stands out slightly for those who want a more defined THC range and prefer indica-type plants, while Speedy Chile Fast Version suits people who like hybrid lines and are comfortable with “strong” as a general descriptor rather than a specific percentage. Here is how these strains line up for different priorities: Both Speedy Chile Fast Version from Royal Queen Seeds and Black Muffin F1 Fast Version by Sweet Seeds cater to growers who value quick flowering and strong THC. The decision ultimately comes down to what matters most to you: the slightly faster finish and stated good yield of Speedy Chile Fast Version, or the indica classification and clearly defined 17–25% THC range of Black Muffin F1 Fast Version. If you are a beginner or a grower who wants predictable harvests in the shortest possible time, Speedy Chile Fast Version is likely the more straightforward pick. If you prioritise an indica-style plant with well-documented potency, Black Muffin F1 Fast Version is worth serious consideration.5. Key Differences
General comparison
Which is better for beginners?
Yield comparison
Effects comparison
6. Which Should You Choose?
7. Final Thoughts