OG Kush vs Original Auto OG Kush: Which Seed Is Right for You?

1. Introduction

OG Kush is a classic name that appears in many seed catalogues, but not all OG Kush lines are the same. Here, we’re comparing two specific versions: the feminized OG Kush by Reserva Privada and the autoflowering Original Auto OG Kush by FastBuds.

Both are hybrids with strong potency and “good” yields, but they differ in how they grow and who they suit best. If you’re a first-time grower, focused on yield, or simply want strong effects with the least hassle, understanding these differences will help you choose the right pack of seeds before you buy.

2. Quick Comparison Table

Feature	OG Kush (Reserva Privada)	Original Auto OG Kush (FastBuds)
Strain Type	Hybrid	Hybrid
Seed Type	Feminized (photoperiod)	Autoflowering
Breeder	Reserva Privada	FastBuds
Genetics	Chemdawg 91 S1 feminized seeds	OG Kush Automatic hybrid with indica and sativa mix
Flowering Time	8–9 weeks (flowering phase)	Autoflowering cycle (no light schedule change needed)
Yield	Good	Good
THC	Strong	Very Strong
Flavour / Aroma	Gasoline-like, fuel notes	Not specified

3. OG Kush (Reserva Privada) Overview

The feminized OG Kush by Reserva Privada is built from Chemdawg 91 S1 genetics, a well-known backbone in many powerful hybrid lines. As a photoperiod hybrid, it follows the traditional indoor cycle: a vegetative phase under longer light hours and an 8–9 week flowering period once the light schedule is changed.

Growers who like to shape, train, and control plant size often appreciate the flexibility of this type of seed. Because the plant only starts flowering when light hours are reduced, you can extend or shorten veg time according to your space and target yield. Its yield is described as “good,” so while exact numbers aren’t provided, it is positioned as a solid performer rather than a light producer.

In terms of character, this OG Kush leans into a pronounced gasoline aroma—those fuel-like notes many people associate with classic US hybrids. THC levels are described as “strong,” indicating potent effects, but no detailed effect breakdown is given. As a hybrid, users can expect a mix of influences from both indica and sativa heritage, though the specific balance is not defined here.

This version is best suited to growers who:

• Are comfortable managing a photoperiod light schedule
• Want to adjust veg time to match their grow space
• Value classic fuel-like aromas
• Are looking for strong potency from Chemdawg-based genetics

4. Original Auto OG Kush (FastBuds) Overview

Original Auto OG Kush by FastBuds takes the same famous name in a different direction by adding autoflowering traits. This hybrid carries a mix of indica and sativa genetics and is described as delivering a balanced high that is both relaxing and uplifting. While precise effect details are not quantified, it is clear that the breeder aims for a rounded experience instead of a one-sided effect profile.

As an autoflower, Original Auto OG Kush does not rely on a change in light cycle to start flowering. The plant progresses automatically from seedling to harvest under a consistent light schedule. This removes the need for timing a switch to 12/12 and simplifies planning—particularly in compact grow spaces or for newer growers who don’t want to manage multiple stages at once.

The strain is explicitly described as being suitable for easy cultivation, with autoflowering traits that make it an excellent choice for beginners seeking a low-maintenance plant. The yield is again rated as “good,” suggesting reliable production for an auto without needing advanced techniques. THC is described as “very strong,” positioning it as especially potent compared to many standard hybrids.

Original Auto OG Kush is a good fit if you:

• Prefer a low-maintenance, straightforward grow
• Want the convenience of autoflowering genetics
• Are a beginner looking for something forgiving
• Seek very strong potency and a balanced, relaxing/uplifting high

5. Key Differences

General Comparison

Both strains share the OG Kush heritage and hybrid structure, but they are aimed at slightly different types of growers and setups.

• Seed Type: Reserva Privada OG Kush is a feminized photoperiod strain, while FastBuds Original Auto OG Kush is an autoflower. This alone creates a clear distinction in how they are grown and managed.
• Potency: The feminized OG Kush is marked as “strong” THC, whereas Original Auto OG Kush is described as “very strong.” Users specifically seeking the highest possible intensity may lean towards the auto.
• Aroma: Reserva Privada’s version is characterised by a gasoline-like aroma. The flavour profile for the FastBuds auto is not specified, so if you strongly prioritise a fuel-heavy nose, the photoperiod version gives you clearer expectations.
• Genetic Emphasis: Reserva Privada clearly lists Chemdawg 91 S1 as the base, linking it directly to that classic line. FastBuds emphasises an indica/sativa mix with a balanced high and easy cultivation, focusing more on user experience than on exact parent lines.

Which Is Better for Beginners?

For a first-time grower, Original Auto OG Kush generally stands out as the more beginner-friendly option. Its autoflowering nature removes the need to:

• Change light schedules at the right time
• Synchronise different plant stages in one space
• Decide how long to veg before flowering

It is specifically described as “an excellent choice for beginner growers seeking a low-maintenance plant,” which is a strong signal that it is designed with new growers in mind.

Reserva Privada’s OG Kush, by contrast, requires you to manage the switch from vegetative growth to flowering and to plan plant size via veg duration. Many new growers do successfully start with photoperiod strains, but they involve more decision-making and timing. If ease and simplicity are your priority, the FastBuds auto has the edge.

Yield Comparison

Both strains are described with the same yield category: “good.” Without exact grams-per-square-metre figures, a precise comparison isn’t possible, but some general points still apply:

• OG Kush (Reserva Privada): As a photoperiod plant, its final yield is more flexible. You can extend veg time to grow larger plants (space and light permitting), which can increase total harvest. This gives experienced growers more room to push yield.
• Original Auto OG Kush (FastBuds): The yield is also rated as good, but autos typically have a more fixed lifecycle. You rely more on optimising conditions rather than extending veg. For growers who want a straightforward run with reliable output, this is a practical trade-off.

For a grower specifically obsessed with maximising yield and willing to manage plant training and veg time, the feminized OG Kush can offer more control. For someone who wants a respectable harvest with minimal decisions, the autoflower has the advantage.

Effects Comparison

The data on effects is more complete for Original Auto OG Kush, while the feminized OG Kush is simply stated to be strong in THC without a detailed effect profile.

• OG Kush (Reserva Privada): With “strong” THC, it is clearly potent, but there is no further breakdown into specific sensations or daytime/night-time suitability. As a hybrid based on Chemdawg 91, users can expect a mixed effect profile, but the exact balance is not given in the data.
• Original Auto OG Kush (FastBuds): Described as delivering a balanced high that is both relaxing and uplifting, this strain aims for a combination of calming and mood-elevating effects. Coupled with “very strong” THC, it is likely to feel intense while maintaining that balanced character.

If you are a user specifically seeking “strong effects,” the “very strong” THC rating and clear mention of a relaxing yet uplifting high make Original Auto OG Kush the more defined choice. If you value the traditional OG/chem-style experience and prioritise aroma, the Reserva Privada feminized version might appeal more, even if its exact effect profile isn’t fully detailed.

6. Which Should You Choose?

The better option depends on your priorities—ease of cultivation, yield strategy, and the type of experience you want.

• You’re a complete beginner or want the simplest grow:
  Original Auto OG Kush is the more straightforward pick. Its autoflowering nature and explicitly beginner-friendly description mean less to manage and fewer decisions to get wrong.
• You’re chasing strong, clearly defined effects:
  Original Auto OG Kush again takes the lead with its “very strong” THC and described balanced, relaxing and uplifting high. If powerhouse potency is a key factor, this auto stands out.
• You want control over plant size and training for yield:
  The feminized OG Kush by Reserva Privada gives you a conventional photoperiod structure with an 8–9 week flowering time. You can veg longer for bigger plants and use more advanced training methods, which can be appealing to growers focused on dialing in yield and structure.
• You care a lot about classic fuel-like aroma:
  Reserva Privada’s OG Kush clearly lists a gasoline-style aroma, which many OG and Chemdawg fans specifically look for. If this flavour profile is a priority, it is the more defined option.
• You want a low-maintenance but still productive plant:
  With “good” yield and easy cultivation, Original Auto OG Kush offers a balanced compromise between output and simplicity—ideal for growers who don’t want to micromanage but still want a satisfying harvest.

7. Final Thoughts

Both OG Kush by Reserva Privada and Original Auto OG Kush by FastBuds deliver strong, hybrid OG-style experiences with good yields, but they do so through different growing styles. The photoperiod feminized OG Kush rewards growers who want control, classic gasoline aromas, and are comfortable managing light cycles. The autoflowering Original Auto OG Kush focuses on very strong potency, a balanced relaxing and uplifting high, and ease of cultivation that suits beginners and anyone seeking a low-effort grow.

If you value simplicity and maximum strength, the FastBuds auto is likely the better fit. If you prefer traditional photoperiod growing with more control over plant development and a well-defined fuel-heavy aroma, Reserva Privada’s OG Kush is the more appropriate choice.