Purple Punch Auto by Barney's Farm

Purple Punch Auto pairs a modern US dessert strain with one of Barney’s Farm’s heaviest autoflowering producers. The breeder crossed Purple Punch with its monster BF Auto Critical, and the result goes from seed to bud in a rapid 65–70 days.

The lineage reads like a hall of fame: Granddaddy Purple x Larry OG x Big Bud x Skunk #1. The plant is 80% Indica with 22% THC and around 1% CBD.

Plants stay compact at 80–100 cm (31–39 in) indoors and 90–120 cm (35–47 in) outdoors. Expect 450–550 g/m² (1.47–1.80 oz/ft²) indoors and 180–250 g (6.3–8.8 oz) per plant outdoors when grown well.

What sets it apart is the flavor: this is the strain for anyone who wants their jar to smell like a bakery window.

Lineage: Purple Punch x BF Auto Critical

Purple Punch is a celebrated US cross of Granddaddy Purple and Larry OG, known for sweet dessert terpenes, purple-tinted flowers and a deeply relaxing indica effect.

BF Auto Critical is Barney’s Farm’s high-yield auto line built on Big Bud and Skunk #1 heritage. It adds the autoflowering trigger plus serious bud mass. Barney’s Farm calls the resulting USA x Barney’s Farm combination nothing short of spectacular.

Aroma, Flavor and Effect

The aroma recalls a baker’s shop at dawn: warm apple pie and fresh pastry, rich and comforting from mid-flower to harvest.

The flavor delivers baked sweet apple pie with a clove spice note and a candy-sweet finish. It tastes like a slice of apple pie straight from the oven, dusted with cinnamon sugar and a pinch of cloves.

Barney’s Farm describes the effect as happy, euphoric, relaxing and calming, ideal for winding down after a long day. The heavy indica share settles the body into a warm, unhurried calm while the mood stays cheerful. It is a classic evening strain.

Growing Purple Punch Auto Indoors and Outdoors

Run 18/6 or 20/4 from seed to harvest; the plant moves into bloom by itself. Sow straight into the final container to protect the taproot through the fast vegetative stage.

Indoors, the plant reaches 80–100 cm (31–39 in). The indica structure stays bushy and compact, so light LST is enough to spread the canopy. BF Auto Critical’s heritage brings heavy colas, so good airflow and moderate humidity in late flower are worthwhile. Slightly cooler nights in the final weeks can draw out purple hues from the Purple Punch side. Expect 450–550 g/m² (1.47–1.80 oz/ft²).

Outdoors, plants reach 90–120 cm (35–47 in) and deliver 180–250 g/plant (6.3–8.8 oz/plant). The 65–70 days cycle fits neatly into a US summer, often with room for a second run.

Purple Punch Auto Characteristics

Strain type	Autoflowering feminized
Genetics	Purple Punch (Granddaddy Purple x Larry OG) x BF Auto Critical (Big Bud x Skunk #1)
Indica/Sativa	80% Indica / 20% Sativa
THC	22%
CBD	1%
Effect	Relaxing, calming, happy, euphoric
Flavor	Apple pie, cloves, candy
Aroma	Baker’s shop, apple pie, pastry
Indoor yield	450–550 g/m² (1.47–1.80 oz/ft²)
Outdoor yield	180–250 g/plant (6.3–8.8 oz/plant)
Seed to harvest	65–70 days from germination
Outdoor harvest	About 65–70 days after sowing, so more than one run per warm season is possible
Height	80–100 cm (31–39 in) indoors; 90–120 cm (35–47 in) outdoors
Best cultivation technique	Light LST, constant 18/6 or 20/4 light, cooler late-flower nights for color

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