Chemdog #4 Autoflower Seeds

Chemdog #4 Autoflower Seeds

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High THC (18-25%)
Low CBD (< 5%)

Price range: US$40.00 through US$100.00

Chemdog #4 is an indica-dominant autoflower from the legendary Chemdog line, delivering heavy kerosene and citrus aromas with a powerful sedating body high. Compact and fast, finishing in 8-10 weeks.

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Read the product reviews at the bottom of this page!

Strain Specifications

🔬 THC High THC (18-25%)
💊 CBD Low CBD (< 5%)
🧬 Genetics Chemdog line phenotype x Ruderalis
🌱 Seed Type Autoflower
🌿 Strain Type Indica-Dominant
⚖️ Indica/Sativa 60% Indica / 40% Sativa
⏱️ Flowering Time 8-10 weeks seed to harvest
📊 Difficulty Easy to Moderate
🏠 Yield Indoor 280-400 g/m2
☀️ Yield Outdoor 100-200 g per plant
📏 Plant Height 60-100 cm
🎯 Best For Indoor, Outdoor, Greenhouse
🌡️ Climate Temperate, Warm

Chemdog #4 is an indica-dominant autoflower that draws from the legendary Chemdog genetic line, bringing the signature diesel intensity of that lineage into a compact, fast-finishing plant. Known for its heavy-hitting effects that transition from an initial cerebral rush into profound physical sedation, Chemdog #4 auto is built for experienced consumers seeking deep relaxation and full-body calm. The pungent kerosene and citrus aroma leaves no doubt about this strain’s heritage and connection to one of the most influential genetic lines in cannabis history.

Genetics & Lineage

Chemdog #4 draws from the Chemdog genetic line, which traces back to the legendary seeds from a 1991 Grateful Dead show that also produced Chemdawg, Chem Sister, and other influential phenotypes. The original Chem 4 emerged as a distinct phenotype selected from those historic seeds, chosen for its unique expression of the Chemdog characteristics. Commercial seed versions of this strain are often listed as a Chemdawg cross, with this autoflower version incorporating Ruderalis genetics for automatic flowering capability. The hybrid leans indica at 60 percent indica and 40 percent sativa, reflecting a heavier physical effect profile than some other Chemdog selections. The exact lineage of commercial auto versions may vary between seed producers, but the diesel-forward character and potent effects remain consistent with the broader Chemdog family identity.

Appearance

Chemdog #4 auto produces dense, compact buds with light green coloring and dark red to orange pistils winding through the flower structure. A heavy coating of crystal trichomes covers the surface, giving the buds a frosted appearance and a notably sticky, resinous texture that makes them challenging to break apart by hand. The bud structure tends toward rock-hard density, producing tight formations that feel heavier than they look and make for satisfying harvests despite the compact plant size typical of autoflowers. The overall visual impression is one of quality and potency, with the trichome coverage being particularly impressive for an auto variety.

Aroma & Flavor

The aroma of Chemdog #4 is intense and immediately recognizable to anyone familiar with the Chemdog line. Heavy kerosene and pungent chemical diesel dominate the nose with commanding presence, while lemony citrus and skunky pine notes add brightness and dimension underneath the fuel-forward top notes. On the palate, lemon and kerosene lead the inhale with an almost acidic sharpness, transitioning to pine and citrus sweetness in the middle of the hit, with a diesel undertone and a surprisingly clean, sweet finish on the exhale that smooths out the intensity. The terpene intensity is impressive for an autoflower and reflects the potent genetics at work in the Chemdog line, maintaining the complexity of the photoperiod original despite the addition of Ruderalis.

Effects

Chemdog #4 auto starts with an initial cerebral head rush that brings a burst of mental clarity, euphoria, and heightened sensory awareness. This opening phase can feel stimulating and expansive, but it quickly gives way to a profound, tranquilizing body high that settles deep into the muscles and limbs. The transition from head to body is noticeable and definitive, making it clear when the indica genetics are taking over the experience. The sedation is significant, making this a strain best reserved for evening or nighttime use when deep relaxation and sleep preparation are the goals. THC levels typically range from 18 to 24 percent, delivering serious potency that experienced users will appreciate. The calming euphoria and stress-relieving properties make Chemdog #4 a go-to for unwinding after long, demanding days when both mind and body need to decompress.

Growing Information

Chemdog #4 auto is rated easy to moderate in grow difficulty, making it accessible for growers with some autoflower experience or those ready to step up from their first grow. Plants stay compact at 60 to 100 centimeters, fitting easily into small tents, grow cabinets, and micro-grow setups. The seed-to-harvest cycle runs approximately 8 to 10 weeks, offering a fast turnaround from seed to dried flower. Indoor yields typically range from 280 to 400 grams per square meter under a standard 18/6 or 20/4 light schedule. Outdoor yields are more modest, with estimates around 100 to 200 grams per plant, which is typical for autoflower varieties of this compact stature. The strain performs well in temperate to warm climates and benefits from consistent feeding schedules and stable environmental conditions throughout its lifecycle. Given the dense bud structure, good airflow during late flower is essential to prevent moisture-related issues, and growers should monitor humidity closely during the final two weeks before harvest.

Read Reviews from our Customers

Gas and Glue, No Breaks

21 July 2025

This one’s pure octane. Chemdog #4 Auto came out loud, sticky, and stanky—straight diesel and citrus funk. One blunt and I was glued to the chair, smiling at the wall. Grew fast, hit hard. Not for the lightweights. Straight-up gas tank vibes.

Rico

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