One of the most common questions in the Dutch Passion in-tray is ‘which autoflower seeds produce the highest THC levels?’. If you’re hoping to grow your best-ever autoflower crop you need to start with proven cannabis seeds that use stabilized high-quality genetics. You will also need to optimize your grow conditions, aiming to keep your autos in the nutrient and optical sweet spot from autoflower seed to harvest. Based on independent lab reports, here are Dutch Passion’s top-5 highest THC autoflower strains.
THC levels in autoflower cannabis seeds
The average THC level for much of the cannabis sold today is around 15% THC. This data comes from annual Dutch Government surveys of cannabis sold in coffee shops across The Netherlands and is fairly consistent over many years of coffeeshop surveys. Many are surprised, expecting average THC levels to be higher. But even ‘premium priced’ cannabis strains in Dutch coffeeshops tend to max out at around 18% THC.
Related:
What’s a high amount of THC in cannabis?
Any cannabis strain that can hit (or exceed) 20% THC should be regarded as exceptionally strong weed. Cannabis seeds that can produce buds with 25% THC levels are actually pretty rare. It must also be emphasized that grow room conditions play a huge role in determining whether plants can reach their full genetic potential.
Use of quality LED grow lights are regarded as mandatory by most serious growers aiming to routinely break the 20% THC barrier. Pro-growers often supplement with UVA / UVB lights during late bloom to push total cannabinoid content to the limit.
Highest THC autoflower cannabis seeds
Even pro-cannabis growers can’t achieve 20-25% THC levels if they start with low quality cannabis seeds. Starting with proven autoflower genetics is the only way to lay the foundation for a cannabis grow which will push THC levels to the max. Do your strain research carefully, seeking strains from proven cannabis seed suppliers with a long track record for quality results.
A few cannabis cup wins is often a sign that your seed supplier takes their work particularly seriously. Look for lab reports, preferably from independent analytical labs, showing the cannabinoid and terpene profiles on your selected strains. Lower quality cannabis seed companies rarely bother documenting the real-world performance of their seeds, instead preferring the cheaper / simpler option of wild unsubstantiated claims.
Remember that the best autoflower seeds are only a starting point. Providing the grow conditions which will allow the seeds to thrive and reach their full genetic potential is easier said than done but is vital for those seeking the highest autoflower THC levels.
Auto Skywalker Haze (THC: 25%+)
Looking for an ultra-potent sativa autoflower strain? Auto Skywalker Haze has the highest THC levels ever seen by Dutch Passion, including strains from other seed banks. THC levels above 25% are quite possible in optimized conditions with LED grow lights. These autoflower seeds suit the uncompromising grower shooting for their best-ever auto harvest.
Download PDF of THC test results
Download PDF of THC test results
Like all Dutch Passion auto strains, Auto Skywalker Haze does well with 20 hours of daily indoor light from autoflower seed to harvest, taking around 12 weeks. Outdoors (like other auto strains) she may take a couple of weeks longer. She typically produces a dominant, tall central bloom surrounded by a ring of smaller side blooms - the classic Dutch Passion autoflower structure.
A word of warning: THC levels around (and above) 25% simply don’t suit everyone. Even a small vape / joint can feel overpowering for many. But for those that demand the most potent buds (for consumption or re-sale) Auto Skywalker Haze would be our number 1 autoflower seed recommendation.
Related:
Auto Skywalker Haze expertly grown indoors
Auto Cinderella Jack (THC: 25%+)
Auto Cinderella Jack hit the headlines when she became Dutch Passion’s first auto to exceed the 25% THC level a couple of years ago. This THC heavyweight was bred exclusively for the high overall THC content. This is the perfect autoflower seed selection for any grower seeking a rapid crop of connoisseur-quality buds. If you have felt under-whelmed by your previous auto harvests, then this could be the time to upgrade to some seriously potent genetics!
This uncompromising killer hybrid auto strain is also rapid, taking just 10-11 weeks of indoor growth from autoflower seed to harvest with literally thousands of repeat growers. If you want a heavy harvest of pungent top-shelf buds in double quick time, then Auto Cinderella Jack is our top recommendation.
Related:
Auto Cinderella Jack professionally grown indoors with 25% THC levels
Auto Lemon Kix (THC: 25%)
Auto Lemon Kix is another killer Dutch Passion auto that boasts THC levels over 25%. Auto Lemon Kix is a sativa cannabis strain which takes around 12 weeks of indoor cultivation to reach harvest. As well as the banging THC levels, Auto Lemon Kix has one of the sweetest, candy-style taste in the entire Dutch Passion collection (feminized seeds included!).
This is one of those rare XL yielding THC monsters that delivers connoisseur flavors and aroma. The stress-busting effects and surging, powerful euphoria are only really suited to those that demand the most potent buds. A small bud of Auto Lemon Kix goes a long way!
Related:
Auto Lemon Kix, detailed indoor grow review
Auto Orange Bud (THC: 20%+)
With genetics from the original, best-selling photoperiod Orange Bud you are assured of a citrus fruit-fest when growing Auto Orange Bud. Although THC levels haven’t yet reached the 25%+ levels seen in some other autos you can still expect numbing THC levels in the 20-25% range. That’s more than adequate to set her well above the average.
Many still find Auto Orange Bud to be their preferred Dutch Passion auto thanks to the remarkably generous yields, ease-of-growth and the truly delicious fruit-salad of citrus flavors.
Once cured, Auto Orange Buds boast one of the best taste profiles of any Dutch Passion autoflower. Scents of clementine, tangerine and orange make this an auto you won’t forget in a hurry. The high dissolves anxiety producing a blissful state of relaxation. Highly recommended!
Related:
Auto Orange Bud, week-by-week grow review with pictures
Auto Kerosene Krash (THC: 20%+)
Looking to combine the highest THC levels with buds that reek of a fresh fuel spill? Auto Kerosene Krash uses cannabis genetics from the photoperiod cannabis cup winning Kerosene Krash x Auto Glueberry OG. The buds have a pungent and penetrating diesel /chemical smell, for many this rich clinging scent is simply unbeatable.
In combination with THC levels that reach above 20% in good conditions, Auto Kerosene Krash is one of the best all-round hybrid auto strains ever seen by Dutch Passion. Though THC levels may be a point or two lower than those of e.g. Auto Skywalker Haze or Auto Cinderella Jack, few would notice in a side-by-side smoke comparison. But many would prefer the unique throat-tingling chemical aroma of Auto Kerosene Krash.
Related:
Auto Kerosene Krash indoor grow review, 20%+ THC levels!
Dutch Passion’s autoflower seeds are the best you can get
Dutch Passion were one of the first cannabis seed suppliers to get involved with the development of autoflower strains and initially partnered with The Joint Doctor, who first brought autoflowering cannabis seeds into the mainstream.
With well over a decade of experience refining and further improving autoflower genetics Dutch Passion have unrivalled autoflower breeding experience, numerous cannabis cups and some of the highest independently reported THC levels ever seen on autoflowers.
The 6 auto strains mentioned are all established THC heavy hitters, some of which are cannabis cup winners independently documented to exceed 25% THC levels. Any of them come with our highest recommendations!
Without doubt you will be able to find cheaper cannabis seeds but it’s worth remembering that the cost of a cannabis seed is small in relation to the value of a premium-strength harvest. Buy the best autoflower seeds you can get and enjoy shooting for the highest THC levels you have ever seen!