FastBuds Seeds Sour Diesel AUTO

Strain Overview

Sour Diesel AUTO Feminized Cannabis Seeds by FastBuds bring the legendary West Coast strain into the autoflowering era with a modern upgrade in stability, yield, and terpene expression. These Sour Diesel AUTO seeds offer a fast-flowering version of one of the most iconic Sativa-dominant hybrids in the world, retaining the original’s unmistakable gassy, citrus-forward aroma while optimizing it for rapid growth and ease of cultivation. This variety performs exceptionally well in a range of environments, producing generous yields and maintaining the unmistakable sour-fuel profile that has made Sour Diesel a timeless favorite among connoisseurs and breeders alike.

Genetics and Lineage

FastBuds developed Sour Diesel AUTO seeds by crossing a premium Sour Diesel cut with the company’s proprietary FastBuds Auto #1 line. The result is a fourth-generation feminized autoflower (F4) with 65% Sativa and 35% Indica genetics. This careful balance captures the original Diesel’s vigor, aroma, and structure while introducing the fast, efficient growth of an autoflower. The result is a hybrid that completes its cycle in just 9 to 10 weeks while delivering the same signature flavor and appearance that made the original Sour Diesel a worldwide legend.

Appearance and Structure

Sour Diesel AUTO grows into a strong, medium-to-tall plant with a classic Sativa framework. Plants typically reach heights between 90 and 120 cm, developing a main central cola surrounded by multiple productive side branches. The buds are long and spear-shaped, with jagged calyxes that form star-like patterns and a heavy coating of silver trichomes. The bright lime-green hues contrast beautifully with deep amber pistils, creating a vibrant visual appeal that’s as striking in the grow room as it is in the jar. This structure also contributes to excellent airflow, reducing the risk of moisture buildup in dense canopies.

Flowering Time and Growth Cycle

One of the standout features of Sour Diesel AUTO seeds is their efficiency. This strain completes its full life cycle from seed to harvest in just 9 to 10 weeks, providing growers with a fast turnaround without compromising quality. It performs exceptionally well both indoors and outdoors, adapting to various growing techniques and environments. The plants’ resilience allows them to thrive in hotter climates, but they also tolerate cooler nights without issue, often showing purple hues as they ripen. With yields of 450 to 550 g/m² indoors, this autoflowering version matches or exceeds many photoperiod varieties in productivity.

Yield and Resin Production

Growers cultivating Sour Diesel AUTO seeds can expect long, stacked buds that are dense for their size and absolutely coated in resin. The trichome coverage is extensive, producing a greasy, aromatic layer that clings to the fingers during trimming. This abundance of resin makes the strain an excellent choice for hash makers and extract artists looking to capture its fuel-heavy terpene profile in concentrate form. The calyx-to-leaf ratio is favorable, simplifying post-harvest trimming while maximizing the overall yield of premium flower.

Flavor and Aroma Profile

Sour Diesel AUTO is renowned for its pungent, complex terpene profile that perfectly captures the character of the original Diesel lineage. The aroma bursts with notes of sharp citrus, black pepper, and freshly ground sandalwood, layered over a foundation of earthy fuel. When broken apart or ground, the buds release an unmistakable diesel-fuel scent with sour undertones that fill the air instantly. The flavor mirrors this complexity, combining bright lemon zest and spicy pepper with earthy depth and a lingering note of wood and gas. This intense aromatic signature is a hallmark of Sour Diesel AUTO seeds and one of the main reasons they’re sought after by terpene enthusiasts.

Cultivation Tips

Sour Diesel AUTO seeds are well-suited for both beginners and experienced growers thanks to their resilience and adaptability. The plants respond positively to low-stress training (LST), especially in smaller grow spaces, as tying down branches encourages even canopy development and maximizes light penetration. This variety enjoys a steady supply of nutrients throughout the growth cycle but benefits from lighter feeding during the final weeks to enhance flavor and overall quality. Sour Diesel AUTO performs exceptionally well in outdoor environments, particularly in warm or temperate regions, and its strong structure helps it withstand varying weather conditions. Hash makers will find the sugar leaves densely covered in trichomes, offering a plentiful source of high-quality extraction material.

Why Choose Sour Diesel AUTO Seeds

Sour Diesel AUTO seeds by FastBuds are the ultimate choice for growers seeking the authentic Sour Diesel experience in a faster, more efficient autoflowering form. With its signature fuel-heavy aroma, vigorous growth, and striking resin production, this strain represents the perfect fusion of old-school genetics and modern breeding innovation. Whether grown indoors or outdoors, these seeds deliver exceptional flavor, yield, and bag appeal, continuing the Diesel legacy in a compact, rapid-flowering format that’s perfect for any cultivation setup.