๐ŸŒฑ Strain Comparison

LSD-25 Auto vs Gorilla Cookies Auto: Complete Grower's Comparison

Updated July 2026 ยท Based on community data from Reddit, Trustpilot & grower forums

โ„น๏ธ This post contains affiliate links. We may earn a commission at no extra cost to you. Our rankings are based on community sentiment, not affiliate status. Full disclosure

Fast Buds' two biggest hits, and they couldn't be more different. LSD-25 is the purple sensation โ€” the autoflower that turns rainbow colors with zero effort and delivers a unique, trippy, creative high. Gorilla Cookies Auto is the potency champion โ€” 28%+ THC, massive yields, and the kind of dense, frosty buds that make people ask "are you sure this is an auto?" If you're picking your first Fast Buds strain, this is the comparison that matters.

Spec LSD-25 Auto Gorilla Cookies Auto
TypeIndica-Dominant Auto (70/30)Balanced Hybrid Auto (50/50)
THC21โ€“24%27โ€“29%
GeneticsLSD ร— Unknown Auto (Fast Buds proprietary)Thin Mint GSC ร— Gorilla Glue ร— Ruderalis
DifficultyEasyEasy-Moderate
Flower Time63โ€“70 days seed to harvest63โ€“70 days seed to harvest
Yield (Indoor)400โ€“500g/mยฒ indoor500โ€“600g/mยฒ indoor
HeightMedium (70โ€“110cm)Medium-Tall (80โ€“130cm)
EffectsTrippy, creative, visual, cerebral, unique experiencePotent, heavy, sedating couch-lock, long-lasting
FlavorEarthy, sweet, citrus, subtle muskSweet cookies, earthy, diesel undertones, dank
Best ForBag appeal, unique experience, photography, color chasersPotency chasers, yield seekers, serious auto growers

The Visual vs The Numbers

This comparison comes down to what you value most: stunning visual beauty and a unique high (LSD-25) or raw power and maximum yield (Gorilla Cookies Auto). Both are excellent strains โ€” they just serve completely different purposes.

Growing Comparison

LSD-25 is one of the easiest autoflowers to grow. It stays manageable in size, has a sturdy structure, and โ€” here's the star feature โ€” produces wild purple, black, and sometimes red/pink colors with zero effort. No need for cold night temps. The colors are genetic, triggered by anthocyanin production that's baked into the DNA. Every LSD-25 you grow will be colorful. It's one of the most photogenic plants in cannabis.

Gorilla Cookies Auto is slightly more demanding. It grows bigger and heavier โ€” those 28%+ THC buds get dense and can need support staking in late flower. The plant is more vigorous and may need light LST to manage in smaller tents. Nothing extreme, but it asks for a bit more attention than LSD-25.

Potency

This is where Gorilla Cookies Auto dominates. At 27โ€“29% THC, it's one of the strongest autoflowers ever developed. The high is heavy and long-lasting โ€” sedating couch-lock that builds gradually and sticks around for hours. This is not a strain for lightweights or beginners when it comes to consumption. Growing it is easy; handling the potency is the real challenge.

LSD-25 at 21โ€“24% is no slouch, but the experience is fundamentally different. Named after the psychedelic association, LSD-25 delivers a trippy, creative, cerebral high that stands out from typical indicas. Visual enhancements, creative thinking, and a mildly psychedelic headspace make it a favorite for artistic and creative sessions. It's strong enough to feel but functional enough to enjoy.

Yield

Gorilla Cookies Auto is a yield monster โ€” 500โ€“600g/mยฒ indoor, which is photoperiod territory for an autoflower. The buds are dense, heavy, and keep stacking weight until harvest. If you're growing for quantity alongside quality, GCA is hard to beat.

LSD-25 yields a respectable 400โ€“500g/mยฒ โ€” still strong for an autoflower but about 20% less than GCA. The buds are gorgeous but slightly less dense, so they weigh less than they look. The trade-off is that every bud looks like it belongs in a magazine.

Bag Appeal

LSD-25 is the clear winner for visual impact. The rainbow of purples, blacks, and occasional pinks against a heavy trichome frost is genuinely breathtaking. These are the buds that get hundreds of upvotes on Reddit grow subs. If you care about how your flower looks, LSD-25 is the autoflower equivalent of a supermodel.

Gorilla Cookies Auto looks classic โ€” deep green, frosted white with trichomes, dense and chunky. It's handsome cannabis, but it doesn't turn heads the way LSD-25 does. The appeal is in the smoking experience, not the visual.

Growing Tips

๐ŸŒฑ LSD-25 Auto

LSD-25 is incredibly beginner-friendly. Plant in a 3โ€“5 gallon pot, water when dry, feed lightly, and watch the colors develop in late flower (weeks 5โ€“7). No cold temps needed for colors โ€” they happen automatically. Minimal training needed; the plant naturally stays compact. Harvest at the normal window; pushing it later doesn't add much.

๐ŸŒฑ Gorilla Cookies Auto

Gorilla Cookies Auto gets big โ€” use a 5-gallon pot minimum. Light LST in early veg helps manage the size and exposes more bud sites. Support heavy colas with stakes or a trellis in late flower. This strain is a moderate feeder; don't push nutrients too hard in early veg, but increase in mid-flower when bud production ramps up.

Where to Buy LSD-25 Auto & Gorilla Cookies Auto Seeds

These seed banks carry verified genetics from reputable breeders. All links include our affiliate tracking โ€” you pay the same price, and it helps keep this site running.

PRIMARY PICK

North Atlantic Seed Co

Visit NASC โ†’

300+ breeders, fast US shipping, premium genetics from Mephisto, Night Owl, Fast Buds & more

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Multiverse Beans

Visit Multiverse Beans โ†’

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Seed Supreme

Large Selection

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Frequently Asked Questions

Yes โ€” 100% of LSD-25 plants produce purple, dark, and sometimes rainbow colors regardless of temperature. The anthocyanin production is genetic, not environmental. This is one of the most reliable color-producing strains in existence.
Yes โ€” lab-verified results from multiple growers confirm 27โ€“29% THC for well-grown Gorilla Cookies Auto. Fast Buds specifically bred this cross for maximum auto potency.
LSD-25 is the easier grow โ€” more compact, lower maintenance, and incredibly forgiving. Gorilla Cookies Auto is also beginner-friendly but gets bigger and heavier. If it's truly your first grow ever, start with LSD-25 for the easiest experience (and the most Instagram-worthy results).
Strawberry Banana Auto is excellent for flavor. Lemon Cherry Cookies Auto is great for balanced effects. Orange Sherbet Auto is another color-producing beauty. Fast Buds' full catalog is available at NASC and Multiverse Beans.

๐Ÿ† The Verdict

LSD-25 is the choice for growers who want stunning purple beauty, a unique trippy high, and the easiest possible growing experience. Gorilla Cookies Auto is for growers who want maximum potency and yield from an autoflower โ€” it's a beast of a plant that produces photoperiod-quality results. If you're growing to impress visually, choose LSD-25. If you're growing for the strongest possible flower, choose Gorilla Cookies Auto.

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Fast Buds vs Barney's Farm โ†’ Night Owl vs Mephisto โ†’ Best Autoflower Seed Banks โ†’