Mephisto Genetics
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Mephisto Genetics

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#8
Global pos.
8.9
1461 harvests
#8
Global pos.
8.9
1461 harvests
2492
Diaries
GB
United Kingdom
A 99%
Autoflower
P 1%
Photoperiod

Mephisto Genetics, established in 2012, is a distinguished cannabis breeder known for its high-quality autoflowering seeds. Starting as a two-person team, it has expanded to eight members, all dedicated to creating exceptional cannabis strains. Specializing in ruderalis genetics, Mephisto Genetics stands out for its autoflowering plants that flower independently of daylight changes, a feature allowing multiple harvests per year.Notable collections from Mephisto include the Artisanals series, the Reserva line, and the Illuminautos Secret Society Strains. The Artisanals series offers strains like Samsquanch OG and Creme de la Chem, known for unique flavors and potent effects. The Reserva line combines customer favorites with unique qualities from their catalog, while the Illuminautos collection features experimental and affordable strains for adventurous cultivators.Mephisto Genetics has earned significant accolades, including Best Breeder prizes at the 2023 Autoflower World Cup and the American Autoflower Cup. Operating from Barcelona, Spain, with distribution hubs in multiple countries, Mephisto is particularly popular in the US, where most of its sales occur. Their journey from a small team to a leading cannabis breeder is marked by a commitment to quality and innovation in cannabis breeding.

 

 

 

 

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JuiceboxTerpsJuiceboxTerpsApprentice
10
Golden Oreoz
Growing it
Easy
Resistance
Neutral
Great autoflower company and strain. Has a distinguished bubblegum scent. Can’t give a smoke report yet since they’re still curing. Plant loved a neutral ec and responded well to some non humid days.
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16d ago
ZizidoemZizidoemApprentice
8
24 Carat
Growing it
Normal
Resistance
Neutral
Waaaaaw what a beauty. What a beast. This lady was having all of it. Incredible smells and funk. But she looked ready and satisfied. Cut her and hung hrr up after a last flushing and 24h dark. Fotos will follow. Fotos up, got her strung up upsidedown, she is a couple a days into the drying proces. Next fotos will follow when she snaps and im ready to bag her after giving her a rough snippin.
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21d ago
xipo86xipo86Apprentice
10
Mephisto Genetics
Growing it
Easy
Resistance
Strong
Cross from Apolo haze x Ice n Baked ..... terpene profile at smell is just like the apolo haze i had a few months ago.. maybe after dry and cure i can sens the other terpens.. but at the moment is full apolo
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21d ago
CamrudeCamrudeNewbie
10
Chemdogging
Growing it
Easy
Resistance
Neutral
I'll update with smoke result. Smoked a tester nug. She was taken early and not properly cured but the potential is there and it hit very nicely
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1mo ago
Pattyirish84Pattyirish84Apprentice
9
Mephisto Genetics
Growing it
Normal
Resistance
Neutral
​Day 66: Micro shots confirmed a dense forest of milky-white trichomes on the calyxes, 0% amber, and a lingering minority of clear glass heads. Delivered the "Last Supper" feeding—heavy payload of Overdrive, bloom base, and carbohydrates. ​Day 67: Trichome check showed clear heads filling in completely; first true caramel amber heads landed on the main calyx structures (3% to 5% baseline). ​Day 68: Executed the final flush using Flawless Finish (8mL per 4L, pH 6.0) to aggressively strip residual mineral salts from the Pro-Mix HP root zone. ​Day 71 (Chop Day): Monitored the canopy closely. Spotted late-stage vertical calyx stacking (foxtailing) at the tips of the main crowns pushing new clear heads. Simultaneously noted localized sugar leaf die-back deep inside the core of the densest tops. ​The Decision: Rather than waiting out the new clear foxtail trichomes and risking internal botrytis (bud rot) from the dying interior sugar leaves, the executive decision was made to chop immediately at peak average maturity. ​️ The Dry-Down Phase & Environmental Shift ​The harvest has been fully hung as whole branches with excellent spacing to prevent micro-climate humidity pockets. The initial dry setup faced some environmental challenges that required a tactical relocation: ​Initial Setup (Upper Room): Stood at 24°C and 57% RH. While manageable for the first 24 hours of surface-moisture loss, the temperature was flagged as too high for a slow, premium terpene-preserving dry. ​Day 2 Sweat: As the stalks naturally began to dump moisture into the air, the tent environment shifted sharply to 22°C and 69% RH, pushing the canopy into a high-risk zone for stagnant moisture. ​The Relocation: The entire drying tent was moved down into the basement lung room, which sits at a stable 17°C and 68% RH. ​Current Dry Settings (Basement Transition): ​Temperature: Locked at an ideal 17°C to prevent volatile monoterpenes from flash-boiling off. ​Inline Exhaust: Cranked to medium-high (Level 4 to 6) to maintain constant, high-volume air exchange, pulling the basement's ambient air through the tent to actively drive the internal 69% RH down toward the low 60s. ​Circulation: Low-profile oscillating clip fan set to Speed 1, positioned at the base of the tent blowing completely under the hanging branches to maintain a gentle, indirect vortex without wind-burning the drying flower.
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2mo ago
XanHalenTGIXanHalenTGIApprentice
10
Mephisto Genetics
Growing it
Easy
Resistance
Strong
This stuff didn’t like to spread energy to a bunch of small sites. Big, Tall, chunky balloon buds that smell like grapes and gas.
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2mo ago
XanHalenTGIXanHalenTGIApprentice
7
Mephisto Genetics
Growing it
Normal
Resistance
Strong
These girls grow out nice in veg, like modest nutrients, are VERY forgiving to under-watering, and put out resin-logged nugs that stay golf ball sized.
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2mo ago
Daw33d41Daw33d41Apprentice
10
Mephisto's Wedding Auto
Growing it
Easy
Resistance
Neutral
Very tasty. Lot of sweetness
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2mo ago
9
Toofless Alien
Growing it
Easy
Resistance
Strong
Toofless Alien as a grow is great. She stood stoic in the back like a mighty tree. She got to 5 feet tall but the difference is she was born to handle it. She had an intense stretch, like forbidden Runtz, only she used it and pushed out some dense buds. She rarely showed stress. I let her grow naturally, no topping, no LST, just let her do her thing. Her buds got solid and bulked up over each other. Her smell is like a classic Kush OG with a bit more sweet on the exhale. Really impressed with this auto. Largest, thickest plant I've grown yet. Will 100% grow again.
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3mo ago
majklsoftmajklsoftApprentice
10
Canna-Cheese 1:1
Growing it
Normal
Resistance
Neutral
Not gonna like, at day 25, I was about to ditch her because she was “stunted.” What a fool that would’ve made me by harvest day! She yielded 66g under 50W. P.S. Never stop believing in them!
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3mo ago
KickSweetsKickSweetsApprentice
10
Bear Knuckles
Growing it
Easy
Resistance
Strong
One of my favorite strains simply she is eating what u put and keeping all the time in progress also very shiny and stinky plant
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3mo ago
SouthWestHeshSouthWestHeshApprentice
10
Bubbasquanch
Growing it
Easy
Resistance
Strong
Oh, YEAH-BOUYEE!!!
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3mo ago
KickSweetsKickSweetsApprentice
8
Mango Smile
Growing it
Normal
Resistance
Weak
It is litle bit sensitive strain for growing but at end it is nice frosty stinky plant definetly will try her again with litle bit more effort at start .
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3mo ago
Pete_vs_NaturePete_vs_NatureApprentice
8
Old School Mango Haze
Growing it
Hard
Resistance
Strong
Old School Mango Haze Auto #1 Mango was 2 days younger than her neighbors, as I realized I needed seedling nests with my medium mix and had to re-start. Expecting Mango to take her full 13 weeks, this already put a challenging catch-up schedule in front of her. Her nutrients were not diluted (as prefered during veg) because I couldn't find the time. As such she gave clear signals early on, mostly via leaf hue variance, that things went a little fast. That far red is not quite her thing in the higher intensities, that she seems to like high Ca and had issues accessing P during week 2 or so, which some fulvic acid helped neutralize quickly. From here on out she responded great to all stretching protocols and easily was the largest plant very early - which caused a sub-set of new issues for me as my grow space was not prepared to handle her demanding structure. A cola that nearly broke clean off during training was held together by tape wrapped over a wire support, then stabilized upwards and instantly (2-3 days) became the new central cola. She was dominating as she was healing, demonstrating clearly how auxin gradients work. This has been the single most damaging and dangerous event during this grow, because it started a stress-spiral ending with consequencial nanner-production. Light burn ensued due to her changed structure (I was not about to touch that cola again), turning her helped but new light burn confirmed that she was already fairly sensitive compared to the other 2 strains grown (slightly underlit). This surprised me the most, but my setup was a bit experimental so I have learned my share. I understand that her ideal pharmaceutical profile is likely subdued and likely only prominent in secret under-canopy buds. But the minor sulphur aura present over the spicy notes is clear signal that my interventions were too soft. That is on me and renders my first close-to-landrace sativa grow quite a bit unsuccessful, secretly causing me to enlarge my tent structure just for sativas. ::: Terps & Fl'noids on live Plant ::: Originally and during most of flower, her mild, spicy, dry bud aura would get displaced after minor trichome rupture, revealing fresh, bright green leaves with an undiscernable and highly pleasant fruit-twist dancing around a prominent mango framework (sometimes maybe jackfruit-leaning). Later on, her stress cascade unfortunately caused some profile breakdowns and that pleasant mango fruit twist aroma would convert to softer, overripe mango notes, placing the oriental spices in the center (likely caryophyllene). The profile finishes with what I can only imagine as a sun-cured, dried, woody and spicy mango shell. I am much more pleased with the results than I could have hoped for. I can not think of a situation other than strict medical conditions in which this product does not compare well against other options in the hybrid - sativa spectrum This one deserves another slot in my tent and I cannot wait to give her that opportunity. It's likely best to grow her again right away due to her challenging nature & the fresh impressions, but I am frankly out of funds. With 2 very healthy cultivars under the same protocols next to her, the differences in growing close-to-landrace sativas became very apparent. I am confident, with proper vertical management and less horizontal containment she can be grown healthily right next to an indica, when only a couple of factors (like her differing far-red utilization window) are adjusted on an individual basis. She will get that grow, especially because of her gift ...
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3mo ago
Pete_vs_NaturePete_vs_NatureApprentice
10
505 Headbanger
Growing it
Easy
Resistance
Strong
So in short, 505 Headbanger is a total monster strain, full of surprises. If you are looking for a strong hybrid / sativa-leaning flower (and can deal with sweet & heavy eucalyptus/mint flavors), you need to give this one a shot. While all plants during this grow had fairly terrific first weeks, 505 Headbanger got hit hardest by continuous drought events just as she was ready to lift off. I mistook the steam from her rocket engines as a crash-signal, when she just launched and asked for MORE fuel. As soon as that was fixed, 505HB had lost her #1 stretch position and already decided for a quick finish. Her trichome production exploded very early on and their coverage expanded far beyond her bud sites. With newly found trust in stable and adequate nutritional support and a fairly dialed in environment, she noticably began to relax and feel at home. Her trichomes looked fresh and very stable at all times, the sheer width and depth of her oilfactory palette honestly scared me for it's intensity. Her structure turned out to be the best of the tent, with ~7 colas on an even level. What I read as a fairly good flower site distribution for "a couple of neat nugs" slowly amassed into a bulky, dinosaur-age style canopy with several "pillars", seemingly ready to take it up with a rain forest. She got the nickname "Lil Peanut", for her terrific roasted peanut scent emanating from flower sites and her slightly stunted structure. I had to move her harvest window several times because she suddenly seemed up for an extended season. I decided I had product in a terrific state and was more interested in her daytime-activation side, so on Day 79 she got chopped and entered the drying tent at an eerie 3000g+, which I immediately discarded as a measurement error. She left me with a spectacular 275g of high quality, dried and trimmed flower (and unexpectedly delivered just as much as Sour Jealousy, no less). Try this. 505 Headbanger gets my full recommendation.
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4mo ago
9
Mephisto Genetics
Growing it
Normal
Resistance
Neutral
It's hard to give this cultivar a proper score as she wasn't grown in a proper way, with too little nutrients and too little light. But that was the experiment, to do a no-budget, no-effort grow, and see what the result is. The result is loose, but sticky buds. Filled with sour terps, with a hint of gas.
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10mo ago
StasiuStasiuApprentice
10
24 Carat
Growing it
Easy
Resistance
Neutral
Big Plant
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1y ago
8
Strawberry Slushie
Growing it
Easy
Resistance
Strong
Two wildly different phenos, as expected from F1 seeds. One is loud, creamy and skunky and the other is straight strawberry nuggets. Not bad for a first go at Meph gear.
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1y ago
kohlrabikohlrabiGrandMaster
10
Forum Stomper
Growing it
Easy
Resistance
Neutral
I had high hopes for this plant and it has fulfilled them all. What an uncomplicated cultivation - also thanks to the Bio Tabs fertiliser, of course. And everything on the plant was covered in trichomes. The plant had quite a lot of sugar leaves, which will certainly be very good for butter - over 90g of usable trim! That's a record for me. This strain really blew me away. The buds are incredibly potent. I can vaporise them twice in my vaporiser and get a long-lasting, pleasant effect both times. And this effect (for me) mainly consists of relaxation, good mood and... horniness. Really, why is there no option to choose "horny" as a positive effect here on GD? Anyway, not unwelcome. I would like to try more from Mephisto in the future. Discout code for the BIOTABS Webshop https://biotabs.nl/en/shop/ GDBT420 This gives you 15 Percent off all the products. I defenitively reccomend giving them a try!
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1y ago
KizzezKizzezApprentice
10
ILL#84 - Gold Toof
Growing it
Normal
Resistance
Neutral
She is a great plant. Not too fussy and can grow big even under 300 watt equivalent led. In some spots in my room she will get up to 300-400 grams. Seeing as she was in a space without much light reflection and the cold air coming into the grow to keep the heat in check. She never had any real stressors until the end of life when she started fading. She faded faster than her buds were ready. She was able to keep pushing longer and longer until she was done. I achieved 186 grams on this plant which equates out to approximately 1.488 grams/watt on the light. Averaging in the additional factors of the air pump and a fan, it equates to slightly over 1g/watt.
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1y ago