Sour Diesel is a sativa-dominant cannabis cultivar built for height, resin, and a sharp fuel aroma. It finishes flowering in about 10 to 11 weeks, produces heavy yields in trained hands, and carries high delta-9 THC with almost no CBD. That last point matters: Sour Diesel sits far outside the legal hemp definition used for CBD products sold in the United States, so you will not find it in a lab-tested CBD lineup.
Sour Diesel Cannabis Strain Buying Guide
What the Sour Diesel Plant Looks Like
The plant stretches hard after the light cycle flips, often doubling in height. Stems run long between nodes, leaves are narrow with serrated edges, and buds form as loose, foxtailed clusters rather than tight round colas. Trichome coverage is heavy, which gives finished flower a pale, frosty look over light green calyxes.
Sour Diesel Leaf: Appearance, Aroma, and What It Contains
Aroma, Terpenes, and Cannabinoid Content
The nose is diesel, citrus peel, and skunk, backed by a chemical bite. Myrcene, limonene, and caryophyllene do most of that work. THC typically tests in the high teens to mid twenties by dry weight. CBD content stays near trace levels, usually under 1 percent.
How to Grow Sour Diesel
- Start seeds or rooted clones indoors under an 18/6 light cycle.
- Transplant into 7 to 10 gallon containers once roots fill the starter pot.
- Top the main stem above the fifth node to build an even canopy.
- Install a trellis net before the stretch begins and tuck branches through it as they rise.
- Switch to a 12/12 photoperiod to trigger bloom.
- Feed a balanced bloom nutrient mix and hold pH between 6.0 and 6.5 in soil.
- Keep daytime canopy temperature near 75 to 80 F and humidity under 50 percent during late flower.
- Flush with plain water for the final 10 to 14 days.
- Harvest when trichomes turn cloudy with a few amber heads.
Flowering Time and Yield
Expect 10 to 11 weeks of bloom, sometimes 12 in cooler rooms. Indoor plants in a trained canopy commonly return 400 to 600 grams per square meter. Outdoor plants need a long season and can reach 2 to 3 meters tall in warm climates.
Sour Diesel and CBD: What Buyers Should Know
Federal law defines hemp as cannabis testing at 0.3 percent delta-9 THC or less on a dry weight basis. Sour Diesel tests many times higher, so it is regulated as marijuana, not hemp. Anyone shopping for CBD should look for products made from hemp cultivars with a certificate of analysis from an independent lab. The COA should list cannabinoid potency, terpenes, and a pesticide and heavy metal screen.
Common Problems
- Stretch that outgrows the tent after the flip
- Powdery mildew when airflow is poor and humidity climbs
- Nutrient burn from aggressive bloom feeds
- Larfy lower buds when the canopy is not defoliated