Fat Blueberry Auto by Seeds66 is built for growers who want a real blueberry profile, solid yields and a compact, predictable cycle. The line combines a selected Blueberry auto, a high-yielding Big Bud and our own Seeds66 Ruderalis. The result is an autoflower that fills the room with sweet berry scent, develops thick, sticky buds and still fits neatly into everyday grow schedules.
With THC levels in the 19–24% range, Fat Blueberry Auto clearly sits above classic “beginner autos”, yet remains manageable and friendly to work with. In our internal tests in California, she performed especially well wherever intense fruit flavor and 9–11 week runs from seed to harvest were key.
Quick Info: Fat Blueberry Auto
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Genetics: Blueberry x Big Bud x Seeds66 Ruderalis
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Type: Autoflowering, feminized Indica-dominant line
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Total Cycle (Indoor): approx. 9–11 weeks from seed to harvest
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Indoor Yield: 450–500 g/m²
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Outdoor Yield: around 40–100 g per plant
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THC Content: 19–24%
Origin & Seeds66 Selection
The foundation of Fat Blueberry Auto is a proven Blueberry auto line known for its intense berry aroma and steady structure. Big Bud contributes its trademark volume: wide, heavy flowers and a strong yield bias. Our Seeds66 Ruderalis provides the autoflowering trigger and keeps the overall timeline pleasantly compact.
For the Seeds66 version, we focused on phenotypes that deliver three things at once: a clearly recognizable blueberry profile, a compact but productive structure, and a reproducible 9–11 week seed-to-harvest window. The goal was not just a nice aroma strain, but an autoflower that behaves reliably in real-world home grows.
Growth & Cultivation
Fat Blueberry Auto is one of those strains that can support new growers without boring the experienced ones. Indoors she typically reaches 80–120 cm, with a dominant central cola and strongly developed side branches. The buds pack on weight and resin, so good airflow in the upper canopy is important.
The full cycle runs around 9–11 weeks from germination. In indoor tents, 450–500 g/m² are realistic with solid lighting and a thoughtful feeding schedule. Outdoors, she reaches 100–170 cm and produces roughly 40–100 g per plant depending on location, season and pot size. She thrives in sunny, protected spots with light, well-draining soil.
Seeds66 Tip:
Start Fat Blueberry Auto in her final pot and keep feeding gentle during the first two weeks. Once she clearly shifts into bloom, you can increase phosphorus and potassium. A soft LST bend on the main stem opens up the canopy and helps side branches develop into proper, evenly ripening tops.
Aroma & Terpenes
The name doesn’t exaggerate: Fat Blueberry Auto smells and tastes exactly like it suggests. During flowering, a sweet, berry-driven aroma fills the grow space, clearly reminiscent of ripe blueberries. As she dries and cures, the profile tightens and gains a dessert-like quality.
In the jar, you’ll notice the berry core layered with light floral tones and a subtle moist-earth note that adds depth. Many growers describe her terpene spectrum as myrcene-led with limonene and pinene companions – soothing at its base, but bright and fruity on top. The impression that stays is a full, sugary berry flavor that lingers on the palate.
Effects
The effect of Fat Blueberry Auto leans strongly toward relaxation without feeling overly numbing. The onset starts in the head with a gentle, cerebral lift and a clear bump in mood. For a short moment, many users report feeling pleasantly distanced from everyday noise and stress.
As the session continues, the Indica side takes over more of the stage: the body becomes heavier, muscles unwind and a calm, warm glow sets in. She’s well suited for evenings on the couch, quiet conversation or winding down after demanding days. Some users also reach for her when tension, stress or inner restlessness are in the foreground.
Seeds66 Philosophy
There are plenty of fruity autoflowers on the market – our standard is that they must not only smell good, but also work reliably in practice. Fat Blueberry Auto stays in the Seeds66 catalogue only as long as she behaves consistently across different setups: stable structure, repeatable yields and a predictable response to light and feeding.
Or to put it simply: a sweet berry profile is only really convincing when the grow behind it is solid as well.
Properties of Fat Blueberry Auto
Type
Indica-dominant hybrid (autoflowering)
Category
autoflowering, feminized Seeds66 line
Genetics
Blueberry – Big Bud – Seeds66 Ruderalis
Effect
relaxing, long-lasting, gentle euphoria with a soft cerebral edge
Flavor
sweet, blueberry, fruity, lightly floral
Indoor Cycle
approx. 9–11 weeks from seed to harvest
Outdoor Harvest
approx. 9–11 weeks after germination (depending on sowing time)
Indoor Yield
450–500 g/m²
Outdoor Yield
around 40–100 g per plant
Height Indoor
80–120 cm
Height Outdoor
100–170 cm
THC / CBD
19–24% / 0.3%
Climate Zones
temperate to warmer regions, protected outdoor locations, indoor or greenhouse
Seeds66 Note
fruit-forward autoflower for growers who want a blueberry-driven line with solid yields and a clearly defined timeline.
Seeds66 Editorial Team
All descriptions are based on our tests and documentation conducted in California. We only publish strains we have documented ourselves, focusing on germination strength, stability and reproducible results for the international market.
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