The Best Autoflower Strains: 10 Proven Picks From Our Database
Ten proven autoflower strains compared on speed, yield, potency and difficulty, using our strain database data, with picks by goal and honest disclaimers on breeder figures.
By Autoflower.net Editorial Team
The best autoflower strain depends on what you value: speed, yield, potency, flavour or forgiveness. Comparing ten proven autos on our own database, the fastest finishers are Gorilla Glue Auto and Northern Lights Auto at around 9 weeks, the biggest producer is Auto Ultimate at 500 to 600 g/m², and the easiest to grow are Easy Bud, Northern Lights Auto and Auto Duck.
This page compares strains using our database records, which carry breeder-published figures. Those are marketing specifications, not independent lab tests, so treat every number below as the breeder's claim. Community reviews on our strain pages tell you how that claim holds up for real growers.
Comparison table: 10 proven autos
| Strain | Breeder | Seed to harvest | THC (breeder claim) | Indoor yield (breeder claim) | Difficulty | |---|---|---|---|---|---| | Gorilla Glue Auto | Fast Buds | 9 wks | 24-28% | 450-600 g/m² | Intermediate | | Auto Ultimate | Dutch Passion | 11 wks | 18-22% | 500-600 g/m² | Intermediate | | Amnesia Haze Auto | Royal Queen Seeds | 11 wks | Up to 18% | 400-500 g/m² | Intermediate | | Auto Night Queen | Dutch Passion | 11 wks | 20-24% | 400-500 g/m² | Intermediate | | Pineapple Express Auto | Barney's Farm | 10 wks | 20-25% | 400-500 g/m² | Beginner | | Auto White Widow | Dutch Passion | 10 wks | 15-20% | 350-450 g/m² | Beginner | | Northern Lights Auto | Royal Queen Seeds | 9 wks | 16-18% | 350-450 g/m² | Beginner | | Auto Duck | Dutch Passion | 10 wks | 15-19% | 300-400 g/m² | Beginner | | Auto Blackberry Kush | Dutch Passion | 11 wks | 15-20% | 300-400 g/m² | Intermediate | | Easy Bud | Royal Queen Seeds | 10 wks | Up to 12% | 300-350 g/m² | Beginner |
Best by goal
Best for speed: Gorilla Glue Auto and Northern Lights Auto
Both list 9 weeks seed to harvest, the shortest in this group. Fast autos matter if you are squeezing in a grow before outdoor season ends or you simply want more harvests per year. Note that breeder week counts assume ideal conditions; our analysis of how long autos really take found growers commonly run 1 to 3 weeks over the label.
Best for yield: Auto Ultimate
At 500 to 600 g/m² (breeder claim), Auto Ultimate is the heaviest producer in the table and the standout for growers chasing bulk. Gorilla Glue Auto is close behind at 450 to 600 g/m². For a sense of what those numbers mean per plant, see our guide to autoflower yield per plant.
Best for potency: Gorilla Glue Auto and Auto Night Queen
Gorilla Glue Auto's 24-28% THC claim and Auto Night Queen's 20-24% are the highest in this group. Potency in autos has improved dramatically over older autoflowering genetics, though sativa-leaning autos like Amnesia Haze Auto often carry lower THC with more energetic effects, as breeders describe.
Best for beginners: Easy Bud, Northern Lights Auto, Auto Duck
These three combine compact growth, forgiving nutrient tolerance and beginner-rated difficulty in our database. They yield less than the heavy hitters, but they finish. Full reasoning is in the best autoflower seeds for beginners.
Best for flavour: Blueberry Auto and Auto Blackberry Kush
Blueberry Auto (Fast Buds) and Auto Blackberry Kush (Dutch Passion) are the fruit-forward picks here. If terpene profile drives your seed choice, our strain pages list flavour tags for every entry in the database.
How to choose, practically
- Match speed to your calendar. Count your weeks of usable summer or your tent availability, then subtract 2 to 3 weeks of buffer from the breeder's number.
- Match difficulty to your experience. A heavy-yielding but demanding strain is a worse first pick than a modest producer that finishes healthy.
- Match height to your space. Check the height figure on each strain page; a sativa-leaning 11-week auto can double the footprint of a 9-week indica.
- Read community reviews. Our strain database shows member ratings alongside breeder figures, which is the honest way to compare marketing against reality.
Where to buy: our strain pages link to seed retailers, and if you purchase through those links we may earn a commission at no extra cost to you. Our picks above are made independently of any commercial relationship, and every strain linked here is a real entry in our database with its own profile, grow notes and reviews.
Related guides
- How to grow autoflowers - the beginner's walkthrough of a full grow.
- The complete autoflower grow guide - the week-by-week pillar.
- Autoflower yield per plant - what the numbers above mean in grams per plant.
Frequently asked questions
Which autoflower strain is the strongest?+
Based on breeder-published figures in our database, Gorilla Glue Auto from Fast Buds claims the highest THC in this comparison at 24-28%. These are marketing figures, not independent lab tests, so treat them as a rough ceiling rather than a guarantee.
Which autoflower strains finish fastest?+
In our database, Gorilla Glue Auto (Fast Buds) and Northern Lights Auto (Royal Queen Seeds) both list 9 weeks seed to harvest, the shortest of the strains compared here. In practice many growers report running 1 to 3 weeks over the label.
What is the highest yielding autoflower?+
Auto Ultimate from Dutch Passion claims 500-600 g/m² indoors in our database, the highest figure in this comparison. Per-plant yields depend heavily on light, pot size and training; see our yield guide for realistic ranges.
Are breeder THC and yield numbers accurate?+
They are best-case specifications, typically from ideal conditions and selected plants. Independent tests and grower reports frequently come in lower. Use them to compare strains against each other, not as a promised outcome.
Written by the Autoflower.net Editorial Team. Information on this page is educational and does not replace strain-specific breeder guidance. Laws on cannabis cultivation vary by jurisdiction — check your local rules before growing.