Frosted Zinn x 3 Bears OG Auto by Barney's Farm

Frosted Zinn x 3 Bears OG Auto is one of Barney’s Farm’s newer autoflower crosses, built from two of its own automatic lines: Frosted Zinn Auto and 3 Bears OG Auto. The result is a 70% Indica / 30% Sativa autoflower with around 24% THC and a full life cycle of about 70–75 days.

It looks nothing like a typical quick auto. The buds form tight, dense clusters with an unusually thick layer of trichomes, a frosted look that clearly comes from the Frosted Zinn side, while the stocky, compact frame points back to the hardy 3 Bears OG genetics.

Indoors, plants reach 90–120 cm (35–47 in) with yields of 450–500 g/m² (1.47–1.64 oz/ft²). Outdoors, the breeder lists a height of about 130 cm (51 in) and harvests of around 280–350 g/plant (9.9–12.3 oz/plant).

The terpene mix is just as layered: peppery and herbal on the nose, then sweet, earthy and tropical on the palate. It is a fast plant for growers who still want complexity in the jar.

Frosted Zinn x 3 Bears OG Auto Lineage

Frosted Zinn Auto is known for heavy frosting and a sweet, spicy terpene profile. 3 Bears OG Auto brings OG Kush-style structure and resilience. By crossing these two autoflowering lines, Barney’s Farm aimed for an auto that keeps the fast cycle but finishes with photoperiod-style bag appeal.

The Indica-heavy 70/30 ratio shows in the plant’s build: a thick main stem, short internodes and compact side branches. The Sativa share appears in the clear, uplifting start of the high and in the brighter tropical notes of the flavor.

Barney’s Farm also points to the cross’s genetic stability. Plants grow uniformly and tolerate gentle training, which is helpful when a whole tent of autos needs to finish together.

Aroma, Flavor and Effect

The first impression is pepper. A sharp, spicy note opens the jar, followed by herbal tones and a sweet, earthy base. In late flowering a faint citrus edge appears too, rounding the bouquet out.

The taste leads with herbal spice, then sweetness, then a grounding earthiness, with tropical hints showing up on the exhale. It is like stepping from a spice market into a stall of ripe tropical fruit: an odd pairing on paper that works on the tongue.

The effect is listed as euphoric, uplifting, calming and creative. Mood lifts quickly, the mind stays clear and inventive, and a calm, relaxed body feeling builds underneath. That balance makes it more versatile than many heavy Indica autos.

At around 24% THC, it is potent enough for experienced consumers yet balanced enough to suit daytime creative sessions as well as quiet evenings.

Growing Frosted Zinn x 3 Bears OG Auto Indoors and Outdoors

No light switch is needed. Keep the plant on 18/6 or 20/4 for the full cycle; flowering starts automatically after the first few weeks. Start in the final pot when possible to save time.

Indoors, the 90–120 cm (35–47 in) height suits standard tents. Barney’s Farm notes that the cross responds well to gentle training, so bend and tie down the main stem early to even out the canopy without slowing the plant down. Dense, resin-heavy buds need good airflow and moderate humidity late in bloom.

Outdoors, plants grow to about 130 cm (51 in) and can yield 280–350 g/plant (9.9–12.3 oz/plant) in a sunny, warm spot. The 70–75 day timeline makes it possible to run several harvests a year in mild climates.

Frosted Zinn x 3 Bears OG Auto Characteristics

Strain type	Autoflowering feminized
Genetics	Frosted Zinn Auto x 3 Bears OG Auto
Indica/Sativa	70% Indica / 30% Sativa
THC	24%
Effect	Euphoric, uplifting, calming, creative
Flavor	Herbal spice, sweet, earthy, tropical
Aroma	Peppery, sweet, earthy, herbal
Indoor yield	450–500 g/m² (1.47–1.64 oz/ft²)
Outdoor yield	280–350 g/plant (9.9–12.3 oz/plant)
Seed to harvest	70–75 days
Height (indoor/outdoor)	Indoor: 90–120 cm (35–47 in); Outdoor: about 130 cm (51 in)
Best cultivation technique	Gentle tie-down training (LST)

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