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LSD-25 Auto

The Psychedelic Side of Life.
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11,00 €
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11,00 € / Seed
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10,00 € / Seed
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10,00 € / Seed
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9,00 € / Seed
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8,00 € / Seed
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7,00 € / Seed
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6,00 € / Seed
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4,49 € / Seed
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2,80 € / Seed
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1,90 € / Seed
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  • Genetics: Original Skunk x Auto Purple Kush from Buddha Seeds.
  • Seed Type: F5 Feminized Autoflower.
  • Purple extractions. The perfect choice for those looking to produce purple extracts.
  • Striking terps. A mix of diesel, red wine, and burnt wood that will leave the whole room smelling pleasant.
  • Strong. Novices beware, the super-strong Sativa effect is mind-bending!

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Tech Radar

LSD-25 Auto
Climate Intended
Very Hot
Hot
Moderate
Cold
Very Cold
Genes
Sativa
Mostly Sativa
Hybrid
Mostly Indica
Indica
Smell
Very Strong
Strong
Moderate
No filter needed
High
Medium
Low

Tech Specs

Parameter Value
Taste Berry, Diesel, Earthy, Woody
THC Up to 21%
CBD < 1%
Harvest EU Indoor 400 – 500 gr/m2
Harvest US Indoor 1.3 – 1.6 oz/ft2
Harvest EU Outdoor 50 – 250 gr/plant
Harvest US Outdoor 2 – 9 oz/plant
Size XL
Height 70 – 120 cm
Height US 28 – 47 inches
Flowering 9 – 10 weeks
Room Indoor/Outdoor/Greenhouse/Mixlight
Gender 100% Female
Genes Sativa 35%/Indica 65%
Genetics Original Skunk x Auto Purple Kush from Buddha Seeds
Seed Type F5 Feminized Autoflower

Genetic tree

LSD-25 Auto
Skunk 1
Acapulco Gold
Mexican
Afghani
Colombian Gold
Colombian
Purple Kush Auto
Purple Kush
Hindu Kush
Purple Afghani
Ruderalis
Genetic tree — LSD-25 Auto. Source: GrowDiaries.com

Description

An Indica dominant rapid producer, that only needs 9-10 weeks from seed until harvest. A stunningly beautiful purple plant with THC levels above 21% that will leave you in a cerebral time-warp. Packs on some serious size and weight in a short time, making her a great strain for growers who need a fast turnaround time, including first-time growers. With intoxicating aromas like diesel, fuel and smoked wood make her highly desirable to fans of loud and gassy terps. Certainly a favorite amongst the Fast Buds team and a strain that ticks all the boxes.

LSD-25 Auto is an indica-leaning autoflower bred from a cross of Original Skunk and Auto Purple Kush from Buddha Seeds, refined into a stable F5 feminized line. This combination was selected to deliver deep coloration, earthy fuel-driven terpenes, and consistent resin production in a vigorous yet manageable XL-format plant.

Plants grow 70-120 cm with a strong central cola and supportive side branching, producing dense, tightly packed buds with heavy trichome coverage. As flowering progresses, flowers often darken and take on rich purple tones, enhancing both visual appeal and resin concentration. Indoor yields reach 400-500 g/m², while outdoor plants can produce up to 250 g per plant under favorable conditions.

The terpene profile is bold and grounded, blending berry sweetness with diesel, woody, and earthy notes. With THC levels up to 21% and a thick, uniform resin layer, LSD-25 Auto performs well for extractions, producing flavorful concentrates with solid yield and strong terpene retention.

With a flowering time of 9-10 weeks, LSD-25 Auto rewards stable conditions with uniform plants, reliable yields, and resin-heavy flowers, performing well across indoor and mixed-light environments.

Certificate of analysis

Packaging

Sealed to ensure authenticity
Waterproof Coating
Aluminium interior lining
Pack front
Pack seed
Pack back
Protective sticker
QR code
Scratchable serial number

Effects

Relaxed Relaxed
57% of people reported feeling Relaxed
Happy Happy
43% of people reported feeling Happy
Creative Creative
28% of people reported feeling Creative
Hungry Hungry
27% of people reported feeling Hungry
Uplifted Uplifted
26% of people reported feeling Uplifted
Giggly Giggly
23% of people reported feeling Giggly
Sleepy Sleepy
22% of people reported feeling Sleepy
Energetic Energetic
17% of people reported feeling Energetic
Talkative Talkative
8% of people reported feeling Talkative

Compare with similar strains

Rating
THC
Indoor
Outdoor
Size
Height
Flowering
Genes
Up to 21%
400 – 500 gr/m2
50 – 250 gr/plant
XL
70 – 120 cm
9 – 10 weeks
Sativa 35%/Indica 65%
Up to 28.5%
550 – 650 gr/m2
50 – 350 gr/plant
XXL
100 – 150 cm
10 weeks
Sativa 45%/Indica 55%
Up to 28.4%
450 – 600 gr/m2
60 – 300 gr/plant
XXL
90 – 150 cm
10 weeks
Sativa 55%/Indica 45%
Up to 27%
400 – 500 gr/m2
50 – 150 gr/plant
XL
70 – 110 cm
8 – 9 weeks
Sativa 40%/Indica 60%
Up to 25%
450 – 600 gr/m2
50 – 250 gr/plant
XXL
70 – 120 cm
9 – 10 weeks
Sativa 60%/Indica 40%
Up to 26%
450 – 550 gr/m2
50 – 170 gr/plant
XL
80 – 120 cm
9 – 10 weeks
Sativa 20%/Indica 80%
Up to 29%
450 – 550 gr/m2
50 – 150 gr/plant
XL
70 – 120 cm
8 – 9 weeks
Sativa 60%/Indica 40%
Up to 28.5%
450 – 550 gr/m2
60 – 200 gr/plant
XL
80 – 120 cm
8 weeks
Sativa 30%/Indica 70%
Up to 29%
400 – 550 gr/m2
50 – 250 gr/plant
XL
80 – 120 cm
9 – 10 weeks
Sativa 55%/Indica 45%
Up to 28%
450 – 550 gr/m2
60 – 200 gr/plant
XL
70 – 120 cm
8 – 9 weeks
Sativa 50%/Indica 50%
Up to 23%
400 – 550 gr/m2
50 – 150 gr/plant
L
60 – 100 cm
8 weeks
Sativa 55%/Indica 45%
Up to 31%
500 – 600 gr/m2
70 – 270 gr/plant
XL
80 – 120 cm
9 – 10 weeks
Sativa 45%/Indica 55%
Up to 27.6%
550 – 650 gr/m2
50 – 350 gr/plant
XXL
100 – 150 cm
9 weeks
Sativa 30%/Indica 70%
Up to 29.5%
450 – 550 gr/m2
60 – 200 gr/plant
XL
70 – 120 cm
9 weeks
Sativa 40%/Indica 60%
Up to 31%
500 – 600 gr/m2
80 – 300 gr/plant
XXL
80 – 150 cm
8 – 9 weeks
Sativa 25%/Indica 75%

Customer reviews

4.5 of 5
197 customer ratings
5 stars
68%
4 stars
22%
3 stars
7%
2 stars
2%
1 star
2%

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T
TaiMo187
Created 16 January 2021
Crazy Strain
Soooo wild Purple buds that hit your head like crazy and smell like you're carrying 5 kg with you, insane stuff
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AlanTardy
Created 28 March 2025
Ticket to the Moon
Wow, I love this strain! It was my first grow last year and I also had Jack Herer and White Widow (both not FastBuds), the Jack Herer got moldy, and the White Widow turned into a pleasantly mild (because it was overripe) all-purpose weed (why does no one ever tell me that White Widow doesn't develop any amber trichomes ;) ) But the LSD 25 is my true love! Planted much later, it grew strong, mold-free, and beautiful - since it was already a bit cold out on the balcony at that time, the buds stayed pretty small, but that doesn't take away from its amazing effects! The colors of the buds are fantastic, a deep, dark wine-red, and the aroma is incredible - I've never smelled anything like that on weed before. An intense aroma of... I don't know, it smells somehow just as wine-red as the buds look ;) Smells a bit like the fizzy powder inside those edible paper UFOs, if anyone remembers those. And the effect... wow, I love it. If you're not careful, LSD will send you straight to the moon, but if you take it slow at first, it unfolds (for me) into a nostalgic, euphoric, super-relaxed high of the finest kind. I somehow always travel back to my youth, and when I put on those old thrash records from the 80s and 90s, or watch old movies, I can literally feel what I felt back then. Like stepping into a time machine and watching 'Invasion of the Body Snatchers' with the eyes of a 16-year-old. Just insanely awesome. But: of course, that’s just my personal experience. My girlfriend doesn’t like LSD at all – just one little puff from the vape and the anxiety creeps in. She’s the only one like that, but I wanted to mention it anyway. Let’s see if this strain ever gets dethroned as my favorite one by another, but until then I’ll definitely be growing it again!
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R
RobSWVA
Created 1 March 2023
A Staple Strain In My Grow Rotation
After a year of growing autos, so far this is my favorite so far. Big, chunky, almost black flowers that smoke great. I never top the first time, and I'm glad I didn't. It grew a very nice cola with branching putting out very nice size flowers as well. Even lowers were nice and dense. Effects are exceptional, and if you go at it hard it does add a small but noticeable change to your vision. This will be one that I grow again from time to time
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J
Jose Luis Martin
Created 26 May 2018
Beautiful
LSD 25, great plant, very good taste, and its colors are stunning. Very pleased. Very high-quality seeds. Next up, Girl Scout Cookies.
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N
Nosias
Created 4 May 2018
Very Positive
First time growing FB. The LSD-25 is a treat to grow and to watch it develop. I am using Auto Pots with a 400 Watt ChilLED Tech light in a 5 x 5 x 7 Tent.<br>She is just over 12" tall. I have tied down the top so looks like this as seen in the pic. The smell is a wonderful blueberry. She is 54 days old and most of her trichomes are cloudy. Just wanted to let you know just how happy I am.
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S
Sarvis
Created 23 August 2022
GrowBalkan
Beautiful purple! Nice thick buds!
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R
Rosemond
Created 19 February 2022
Purple wonder
Top notch strain. Easy to grow and produces prolific flowers. I got 6 ozs. of great medicine from her. I will definitely grow this strain again.
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L
Liven1981
Created 19 January 2021
Beautiful, just beautiful
My first "real" grow in 15 years, and the result is pretty decent. The buds are really something special and the effect feels more like psychedelic stuff than cannabis. I've never seen buds this purple/pink before.
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A
ALF DER GROWER
Created 19 January 2021
Super easy
Super easy, lots of nutrients, keep the light not too close, and then leave in the dark for another 2 days before harvest. Didn't need much care either. Worked out great for me, unfortunately I can't upload pictures because I live in shitty Germany.... :__(
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D
dsvcf
Created 1 September 2024
Extremely beautiful plant
The appearance and structure are absolutely stunning. And when it comes to the high, this strain definitely deserves the name LSD—a really awesome, trippy body feeling.
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GrowDiaries reviews

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Customer questions & answers

I just ordered some of your LSD-25. do the majority of these color up like the Promo photo?
Hey John, about 85% of the time the plant will produce nice purple buds!
Hello, could I grow this strain with only feeding her bonemeal and banana tea ? Have 2 running now and they look quite healthy, just worrying incase the buds don’t fatten up due to underfeeding thanks
Hello, thanks for asking. Yes, you can, as long as you provide enough phosphorus and potassium you shouldn't have any problems at all.
My LSD-25 hermed on me. Has other people experienced this or did this just happen to me???
Hello, it's not common for this to happen. Please send an email to [email protected] and we'll gladly help you solve your problem.
How well does this strain respond to topping or FIM’ing? I know it’s a fast developer, but I like topping rather than tying down side branches. Which works best for yields? Thank you
Thanks for asking! You may have better results when topping or fimming but you can end up stressing your plants too much, if you don't have experience with autoflowers it's better to start with tying down the branches but if you've topped autos before and you have a bit of experience there shouldn't be a problem at all.
I have a 6 weeks old LSD-25 in soil. I have given it Fox Farms Big Bloom, Grow Big, and Tiger Bloom. I found yellow spots on some of the leaves and buds. Could it be an iron deficiency?
Hi! It could be a nutrient deficiency or a bug infestation. You should check exactly what Fox Farms Soil contains and also thoroughly check your plant.
Do you recomend this strain for outdoors hot summer sometimes up to 100F ? If not, which strains do you recomend, Thanks ! 😄
Yes, it's a bit hot but it will work. Sativas will perform better.Thanks for asking!
Hi, canbi grow the plant without a led system. Just using watering and caring. Here it is legal to harvest weed plant. So is it possible to grow the plant free. Is the plant will survive?
Hello, thanks for asking. Yes, your plant will survive but the lack of food can and up affecting yields and flower quality negatively.
What is the recommended temperature for this strain ? Since mine is in flowering mode and my grow tent is reaching 29 degrees celcius. And also she is in week 7. And some fan leaves have rust spots
Hello, 29 degrees celsius is a bit too hot but as long as your plant is growing normally there shouldn't be a problem at all. For more detailed information please contact us at [email protected]. Thanks for asking.
At what temperature should I store seeds? Is it bad if it's over 100 degrees Fahrenheit?
Hello, you should store the seeds in a cool, dark place. The ideal temperature would be around 9 celsius (48F).
Will autoflowers finish a bit faster if placed in a small container?
Hello, thanks for asking. Yes, if grown in smaller containers your plants will grow a bit smaller and take less from seed to harvest.
My LSD 25 just coming to the end and my fan leafs got odd dots of yellow very tiny and i only use rain water all thro its life now on wedding cheese cake and cheese is the dots a problem
Hello. This could happen due to several problems such as nutrient deficiency or pH levels. Please send an email to [email protected] and we will be happy to help you.
I have a question i tried 2 order me some beans off my card from seedsman but they said my order wouldn't go through & im just wounding do you know any other place to get beans from
We're sorry to hear that. If you're based in a country we are unable to ship to, we suggest you check out our distributor's list: https://2fast4buds.com/distributors
¿puedo utilizar LST para esta variedad?
LST siempre puede hacerlo. Gracias!
so I decided to do my first hydroponic grow after a few faild at using soil. I decided to try these lsd-25 seeds cuz I heard great things about them well I'm about five weeks into my hydroponic grow and everything seems to be going well it has begun to flower.. I have two 250 watt CFL lights my tent fan and a weekly feeding schedule what do you guys and girls think any hints tips tricks or suggestions it's my first time doing Hydroponic and I'm keeping my fingers crossed for my first successful grow..
Thanks for asking! There are no tips or tricks, as long as you maintain good conditions and feed your plants properly you will have good results!
I am at day 75 and my LSD-25 is showing very few milky trichomes, with a few amber here and there. Is trichome ripeness an indicator of readiness in general, does it not matter with autoflowers?
Hi Justin! Thanks for asking. Yes, trichs color is important for the harvest. It's the same method as usual with autos too. If you harvest it when there are less amber trichs, the product will be more sativa-effect related; if you chop it when there are more amber trichs, it will tend to be more indica. So, for indicas, our suggestion is cutting it when the trichs amount is up to 20% amber and the majority are milky. Stalks can be reddish if there some deficiency too, but purple strains use to be like this. Hope it helps a bit!
Hi, I'm growing in a tent 60X60 cms, using a led Apollo 6 (270 watts) 18/6. Is it enough? I've got 2 GSC and 2 LSD-25. Thanks
Yes, it should be enough, Diego. But bear in mind that the more power you use, the bigger the yield will be. Also, GSC is a big one, so maybe I'd wait to grow it alone to have a big one. Thanks for askin!
Hi, i have a question. I got a 8 weeks-old lsd-25 strain, but buds didn't turn purple. They still green. Flowering period has almost finished. Why this happened? BTW I'm using a 250w hps.
Hey man. First, it looks really great, even if she didn't turn purple. In some 85% of them, they do get purple but the rest can keep on being green, but that doesn't mean she will loose any of her propreties. So don't worry about the buds and enjoy this amazing strain!
Hello I have a 1000w hps in a 5x5 im looking to grow this strain. How many would you suggest growing in that size for best yeild. Also these you shouldnt top right? Just let them do their thing?
Hi, thanks for asking!It depends on the strain. With this strain you could try from 6 up to possibly 10. It will depend on the plant size you get!Enjoy!
Why is this strain good for begginers? How many watts should my leds be for just one lsd 25 plant? What gallon pot do you suggest for maximum yield?
Hi Wayne, thanks for asking.It's a good strain for beginners due to its resilience, tolerance to errors and easy growing. Also it's so beautiful to see that she'll encourage you to grow her beautifully, making you happy from the day 1!About wattage, it's just your choice. More watts, more yield. You can go from 400 to 1000 or more. 600W could be good, too.About pots we suggest more than 3 gallon pots. You can grow them in smaller ones, but yield will be less too.No worries for the questions! We like to explain and help you all in order to enjoy our strains from zero! No need to try them without asking your matters.Thank you!
Do i need to lower temp for purple colour? cuz i see some green bud in jar on ur photography catalog. Or it get purple through flowering as i understand from grow diary i read
Hi! It doesn't depend on the temperature in our case. As you say, it will turn purple when flowering. Thanks for asking!
I have grow box about 70 cm tall and 70*30 bottom. I do lst or scrog so plants can fit. I grow under 3*35w full spectrum leds. Is it enough for 2-3 plants? Should I use more light or build a taller box?
Hi! If you don't wanna change your setup, we suggest you to try shorter strains such us our RhinoRyder or the NorthernExpress. But the optimal would be a bigger box, for sure. Bear in mind that the pots use to be quite big, so you are losing the half of your box just for the pot and you need to hang a light, too. Hope it helps you a bit! Enjoy!
After along time selecting the right autoflowers I decided to grow fast buds 4 different strains the question I have is what is your preferred method for germinating these seeds
Hi! Thanks for asking. There are lots of ways to do it, but this method is contrasted and highly recommended by our expert growers for our seeds.- First of all, take a glass for each strain. - Fill them with 2-3 fingers of water. - Leave (very carefully) the seeds on the water, floating. - Finally, put these glasses in a dark, closed and tempered (68-77*F) place, such a wardrobe, for example. - Leave them there for 48h and when they show a little "tail", you can take them out from the water and plant them directly in the final pots.- The last recommendation is never touch them with the fingers once they're on the water. If they are not germinating after those 48h, you can add some drops of hydrogen peroxide and continue with the darkness 2 more days. If after those 2 more days they haven't shown, they may be defective.
I have a grow tent 5X5 with 600W LED multi-spectrum and 500W LED Daylight. How many plants can I grow in that setup? I am in Northern Cali can this strain do well outside? It can get over 100F.
Hi! Thanks for asking! Well, depending on your choice. You can grow a few plants and they will get bigger, or you can grow up to 16plants each 11 squared ft, and you'll get smaller ones but more strains variety. And yes, temp is high as you said, but it should resist. LSD-25 is really resilient! Cheers!
Can I clone LSD 25?
Hi! Yes, you can but it's not recommended because the clones will flower as soon as they develop roots so it won't grow or yield too much.
i have one of these seeds and put it under a 30watt cfl 150watt bayonett full spectrum bulb and she seems to be doing fine in 80cmx40cm, will 150watts manage this plant?
Yes, we recommend a minimum of 75w per plant (ideally, 100w) so 150w for one plant is more than enough.
What are your thoughts on leaving the lights on 24 hrs a day? Is it beneficial or am I just wasting money? I'm using 2x 4' 6 lamp T5HO. I'm 10 days in on LSD-25 and GSC.
Hello, thanks for asking! It depends, if you see a big difference then it's definitely not a waste of money but some growers say there's not much difference between a 20/4 and a 24/0 light cycle. We recommend you experiment with both and see what works best for you.
How do you feel about 24hrs of light?? Started lsd-25 and gsc about 10 days ago. I was just wondering if it's beneficial or am I just wasting time and money??
We find that 18/6 cycles give us the best results. Giving the plants a period of darkness creates a more natural environment that the plants seem to benefit from.
Have you had anyone with migraines report that LSD 25 reduced the pain? I am growing in soil under 3 200W CFLs 1mx1m, how many plants would you recommend to have in there?
Hi, thanks for your question. You can have up to 6 plants under 600w, just remember that cfl's emit a blue spectrum, you'll need to provide a red spectrum in the flowering stage. There aren't enough scientific studies to know exactly which terpenes help with migraines but it is said that cayophyllene helps a lot, our LSD-25 terpene profile contains caryophyllene but not too much, I would recommend going for our OG Kush, Amnesia Haze, Orange Sherbet or Pineapple Express, just have in mind that they also contain other terpenes so the effect may change from strain to strain and from person to person.
I have box in a separate room, I got ladies at 18:6 light. Is it ok if i turn of the light once-twice a day while its day cycle to open the windows for fresh air. I usualy do it for like 5 mins? thanks
Hello, it should be fine to turn the light off once or twice a day. Just keep an eye out to make sure the plants don't get stressed.

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