LSD Auto
Cannabis seeds
by Barney's Farm
LSD Auto Cannabis Seeds by Barney's Farm
LSD Auto is an autoflowering cannabis seed from Barney's Farm that delivers the same time-distorting, vivid effects as the original photoperiod LSD strain — but finishes in just 64–70 days from seed. Created by crossing LSD with Super Magnum Auto, this indica-dominant hybrid (70% indica, 30% sativa) stays compact at 90–120cm while producing up to 650g/m2 indoors. If you want the legendary LSD genetics without the hassle of light schedule management, this is your shortcut.
Pack Sizes
| Pack | Seeds | Best For |
|---|---|---|
| 3-pack | 3 feminised autoflower seeds | Single-plant growers or first-time runs with this strain |
| 5-pack | 5 feminised autoflower seeds | Filling a tent or selecting the best phenotype |
Why LSD Auto Seeds Deserve Your Grow Space
We've seen growers chase the original LSD for years — it's one of Barney's Farm's most decorated strains for a reason. The problem was always the same: photoperiod plants need precise light schedules, longer veg times, and more attention. LSD Auto solves all of that. You get the same pungent, skunky genetics in a plant that essentially runs on autopilot from germination to chop day.
The resistance profile on this one is genuinely impressive. Mould, powdery mildew, and spider mites — the three horsemen of a ruined harvest — barely touch her. We'd pick LSD Auto over most autoflowers if you're growing in a humid climate or a space where airflow isn't perfect. That mould resistance alone saves headaches (and entire harvests) that no amount of neem oil can fix.
The honest limitation? She's short. At 90–120cm, you're not going to get the towering canopy of a full-size photoperiod plant. But what she lacks in height, she makes up in density. Those 650g/m2 indoor yields come from thick, resinous colas packed tight on a compact frame. Outdoors, expect up to 400g per plant — solid numbers for an auto that finishes in about 9–10 weeks total.
Growing LSD Auto Seeds — What to Expect
LSD Auto is one of the most forgiving autoflowers we carry. From seed to harvest in 64–70 days, she requires no light schedule changes and stays manageable in height. Here's how to get the most from her.
- Germinate your seeds using the paper towel method or directly in a small pot of light, airy soil. Tap roots typically appear within 24–72 hours.
- Transplant (if needed) into her final container within the first week — autoflowers don't love being moved once they're established. A 15–20 litre pot works well.
- Provide 18–20 hours of light throughout the entire lifecycle. No need to switch to 12/12 — she'll flower on her own schedule regardless of light cycle.
- Feed lightly during the first two weeks, then gradually increase nutrients as she enters pre-flower around week 3–4. She's indica-dominant, so she handles heavier feeding in flower without complaint.
- Watch for the stretch around days 20–30 — she'll nearly double in height before setting buds. Low-stress training (LST) during early veg opens up the canopy nicely.
- Harvest when trichomes show mostly milky with some amber (typically around day 64–70). The skunky, pungent aroma will intensify dramatically in the final two weeks — a carbon filter is not optional if discretion matters.
Aroma and Flavour Profile of LSD Auto
Crack open a cured jar of LSD Auto and you'll get hit with a thick wave of skunk and musk — earthy, floral, and undeniably pungent. It's the kind of smell that fills a room and lingers on your fingers. There's nothing subtle about it.
On the palate, the profile shifts. Earthy chestnut forms the base, layered with tropical mango and sharp citrus notes. The finish is sweet and sour simultaneously — like biting into an unripe mango dusted with brown sugar. Compared to the original photoperiod LSD, the auto version carries the same terpene signature but tends slightly sweeter in our experience. If you've grown Barney's Farm Dos Si Dos Auto, expect a bolder, more savoury profile from LSD Auto — less dessert, more forest floor.
LSD Auto Specifications
| Specification | Detail |
|---|---|
| Seed Bank | Barney's Farm |
| Genetics | LSD x Super Magnum Auto |
| Type | Autoflowering, Feminised |
| Indica / Sativa | 70% Indica / 30% Sativa |
| Seed to Harvest | 64–70 days |
| Height | 90–120 cm |
| Indoor Yield | Up to 650 g/m2 |
| Outdoor Yield | Up to 400 g/plant |
| Resistance | High (mould, powdery mildew, spider mites) |
| Aroma | Skunky, musky, earthy florals, herbs |
| Flavour | Earthy chestnut, mango, citrus, sweet and sour |
| Available Packs | 3 seeds / 5 seeds |
Complete your grow setup with a propagation kit for reliable germination — autoflower seeds benefit from a warm, humid start. If you're running LSD Auto in a tent, pair her with a carbon filter; the skunky terpenes on this strain will announce themselves to your entire building by week 6.
LSD Auto vs Other Barney's Farm Autoflowers
| Strain | Genetics | Days to Harvest | Indoor Yield | Height | Key Trait |
|---|---|---|---|---|---|
| LSD Auto | 70% Indica / 30% Sativa | 64–70 | Up to 650 g/m2 | 90–120 cm | Mould resistance, pungent skunk profile |
| Dos Si Dos Auto | Indica-dominant | 70–75 | Up to 500 g/m2 | 80–110 cm | Sweet dessert terps, compact structure |
| Gorilla Glue Auto | Hybrid | 70–75 | Up to 600 g/m2 | 100–130 cm | Resin production, diesel flavour |
LSD Auto wins on speed and yield — 650g/m2 in under 70 days is hard to beat in the autoflower category. If you want something sweeter and more compact, Dos Si Dos Auto is the call. For maximum resin and a taller plant, Gorilla Glue Auto edges ahead. But for the combination of pest resistance, quick turnaround, and sheer weight, LSD Auto is the one we'd fill a tent with.
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.