Frosted Zinn x Cookie Dog Auto pairs two of Barney’s Farm’s modern autoflowering lines, Frosted Zinn Auto and Cookie Dog Auto, into a 70% Indica / 30% Sativa autoflower with 25% THC. It is one of the strongest entries in the breeder’s fast-cycle range, and it finishes in roughly 70–75 days from seed.
The plants mature quickly and produce dense, compact flowers with green and purple calyxes, bright orange pistils and a crystalline coat of trichomes. They look heavy with resin from mid-bloom onward.
Indoors, expect heights of 90–110 cm (35–43 in) and yields of 500–550 g/m² (1.64–1.80 oz/ft²). Outdoors, plants grow to 100–120 cm (39–47 in) and give about 230–300 g/plant (8.1–10.6 oz/plant) in good conditions.
Sweet, earthy and peppery on the nose with a warm vanilla note, then diesel, pine and spice on the palate: this is an auto with a seriously layered profile.
Frosted Zinn x Cookie Dog Auto Lineage
Frosted Zinn Auto contributes frost, density and sweet spice. Cookie Dog Auto brings a Cookies-style dessert note and gassy depth. Barney’s Farm put them together to show that a fast autoflower can carry high THC and a complex terpene profile at the same time.
With a 70% Indica share, the plants stay compact and sturdy, with thick, tight colas. The 30% Sativa side shows in the clear, euphoric headspace and in the brighter pine notes of the smoke.
The breeder highlights how well this cross accepts gentle training. Growers can shape the canopy and improve light distribution without stretching the short seed-to-harvest window.
Aroma, Flavor and Effect
The aroma opens sweet, then turns earthy and peppery, with a soft vanilla warmth tying it together. It is rich and rounded rather than sharp.
The flavor hits harder. Diesel leads, followed by fresh pine, a dash of spice and a creamy vanilla finish. Picture a log cabin with a diesel truck idling outside and vanilla cookies in the oven: fuel, wood and sweetness all in one breath.
Barney’s Farm lists the effect as relaxing, euphoric, soothing and creative. The body loosens and settles while the mind stays bright and open to ideas, a mix that keeps the experience from feeling sluggish.
At 25% THC, this auto is strong. Experienced consumers will appreciate the depth, while newcomers should keep sessions short.
Growing Frosted Zinn x Cookie Dog Auto Indoors and Outdoors
No light change is needed. Run 18/6 or 20/4 from seed to harvest and let the plant switch to flowering on its own. Sow directly into the final container to avoid transplant setbacks during the short veg phase.
Indoors, plants stay at 90–110 cm (35–43 in). Light tie-down training in weeks two to four spreads the canopy so more bud sites receive direct light. Keep humidity moderate in late flowering, since the dense, resinous buds can trap moisture.
Outdoors, plants reach 100–120 cm (39–47 in) and can produce 230–300 g/plant (8.1–10.6 oz/plant) in full sun. With a cycle of only 70–75 days, multiple harvests per season are possible in warm regions.
Frosted Zinn x Cookie Dog Auto Characteristics
| Strain type | Autoflowering feminized |
| Genetics | Frosted Zinn Auto x Cookie Dog Auto |
| Indica/Sativa | 70% Indica / 30% Sativa |
| THC | 25% |
| Effect | Relaxing, euphoric, soothing, creative |
| Flavor | Diesel, spicy, earthy, vanilla, pine |
| Aroma | Sweet, earthy, vanilla, pepper |
| Indoor yield | 500–550 g/m² (1.64–1.80 oz/ft²) |
| Outdoor yield | 230–300 g/plant (8.1–10.6 oz/plant) |
| Seed to harvest | 70–75 days |
| Height (indoor/outdoor) | Indoor: 90–110 cm (35–43 in); Outdoor: 100–120 cm (39–47 in) |
| Best cultivation technique | Gentle tie-down training (LST) to open the canopy |



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