Auto Think Big
Cannabis seeds
by Dutch Passion
Auto Think Big Cannabis Seeds by Dutch Passion
Auto Think Big is an autoflowering cannabis seed from Dutch Passion that rewards patient growers with XXL yields of fat, resinous buds. A sativa-dominant collateral line bred from Think Different, she was selected specifically for height and output — reaching up to 1.5 metres and producing harvests that dwarf most autoflowering varieties. The catch? You'll need 13–14 weeks from germination to harvest. That's a long wait in autoflower terms, but the payoff is genuinely staggering.
Pack sizes
| Pack | Seeds | SKU |
|---|---|---|
| Small pack | 3 seeds | CSDP0083 |
| Standard pack | 7 seeds | CSDP0162 |
If you've never grown autos before, the 3-pack lets you test the waters. Already know you want a full canopy? The 7-pack gives you room to select the strongest seedlings and still fill out your space.
Why Auto Think Big Outperforms Most Autoflowers
Most autoflowering strains are bred for speed. Dutch Passion took the opposite approach with Auto Think Big. They pulled the tallest, biggest phenotypes from their Think Different line and kept breeding for size. The result is an auto that behaves more like a photoperiod in terms of stature and output, while still flowering on her own schedule without light cycle changes.
At up to 1.5 metres, she towers over typical autos that top out around 60–80cm. That extra height translates directly into more bud sites, more weight, and a harvest that genuinely surprises people who assumed autos were always the smaller option. Dutch Passion describes her as one of the most stable autoflowering strains in their collection — you get consistent growth patterns and predictable results, which matters when you're investing 13–14 weeks into a single run.
The sativa dominance shows in her structure: tall, with good internodal spacing and branches that fill out rather than stay compact. She's not a bushy indica ball. Give her room, and she'll use it.
Auto Think Big Aroma, Flavour, and Resin Profile
Here's where she gets properly interesting. The buds come out insanely fat — we're talking dense, round nuggets coated in a thick layer of trichomes that makes them look almost frosted. When you crack one open, you get a layered scent: citrus up front, lemon sharpness underneath, and a warm incense note that lingers on your fingers. It's not a one-note smell. There's genuine complexity there.
The smoke carries those same notes through. Citrus and lemon hit on the inhale, incense wraps around the exhale. If you're used to autos that smell vaguely "green" and not much else, Auto Think Big is a different animal entirely. The resin production alone puts her in a league with many photoperiod strains — your trimming scissors will be caked within minutes.
One honest note: that 13–14 week timeline means the terpene profile has time to develop fully. Faster autos often get harvested before their aromatics peak. The extra weeks here aren't wasted — they're building flavour.
Auto Think Big Grow Specifications
| Specification | Detail |
|---|---|
| Seed bank | Dutch Passion |
| Seed type | Autoflowering, feminized |
| Genetics | Sativa-dominant (collateral line of Think Different) |
| Seed to harvest | 13–14 weeks |
| Height | Up to 1.5m (150cm) |
| Yield | XXL — above average for autoflowering varieties |
| Aroma | Citrus, lemon, incense |
| Resin production | Very high |
| Difficulty | Moderate — requires patience |
| Available packs | 3 seeds / 7 seeds |
Who Should Grow Auto Think Big
Auto Think Big works best if you've grown at least one auto before and you're ready to push for bigger results. She's not difficult in terms of feeding or training — she's difficult in terms of patience. When your mates are trimming their 8-week autos and you're still watching yours stretch, you need the discipline to wait it out. The harvest will justify every extra day.
She's a strong choice for growers who want autoflowering convenience — no light schedule fiddling, no separate veg and flower rooms — but refuse to compromise on yield. If you've been disappointed by the output of smaller, faster autos, this is the variety that changes your mind about what the format can do.
Not the right seed if you need a quick turnaround or you're working in a very small space. At 1.5 metres, she needs vertical room. A 60x60cm tent with a low ceiling will cramp her style. We'd say 80x80 minimum, ideally with at least 1.8 metres of headroom after accounting for your light.
How to Grow Auto Think Big
- Germinate your seeds using the paper towel method or directly in a small pot of moist, light soil. Taproots typically appear within 24–72 hours.
- Plant the germinated seed 1–1.5cm deep in your final container. Autos don't like transplanting — start in the pot you intend to finish in. An 11–15 litre fabric pot works well for a plant this size.
- Run your lights on an 18/6 or 20/4 schedule from day one. Auto Think Big doesn't need a light cycle change to flower, but she responds well to long light hours throughout her life.
- Keep feeding light during the first 3–4 weeks. She's a big plant, but she builds her root system before she explodes upward. Overfeeding early is the most common mistake with vigorous autos.
- Once she enters pre-flower (usually around week 4–5), increase nutrients gradually. Her sativa structure means she'll keep stretching well into flowering — expect significant height gain during weeks 5–8.
- Support heavy branches during late flower. Those XXL buds get genuinely heavy, and side branches can snap under the weight. Bamboo stakes or a SCROG net both work.
- Monitor trichomes from week 11 onward using a jeweller's loupe or digital microscope. She'll be ready between weeks 13 and 14, but let the trichomes — not the calendar — tell you when to chop.
- Dry slowly in a dark room at 18–20°C and 55–60% humidity for 10–14 days. Cure in glass jars for at least 2 weeks. Those citrus and incense terpenes develop beautifully with a proper cure.
Growing Auto Think Big indoors? Pair her with a quality grow tent — the Dark Box 80x80x180 gives her the headroom she needs without taking over your spare room. For the resin-heavy trim sessions ahead, a decent pair of trimming scissors and a pollen press will make sure nothing goes to waste.
Auto Think Big vs Think Different
Since Auto Think Big is literally bred from Think Different, the comparison is unavoidable. Think Different is the faster, more compact option — she finishes in about 10–11 weeks and stays shorter. If speed matters more than size, Think Different is the practical choice. But if you've got the time and space, Auto Think Big takes the same genetics and pushes them further: taller plants, bigger buds, heavier harvests. The aroma profiles overlap — both carry citrus notes — but Auto Think Big's extra flowering time gives her a richer, more developed terpene expression. Think of Think Different as the efficient daily driver and Auto Think Big as the same engine with a bigger chassis and a longer runway.
The Honest Limitation
We'll say it plainly: 13–14 weeks is a long time for an autoflower. Most people choose autos specifically because they're fast. If you're running a tight rotation or you need multiple harvests per year in a small space, Auto Think Big will slow your schedule down. You could run two cycles of a fast 8-week auto in the time it takes to finish one round of Auto Think Big. The yield per plant will likely be higher with Think Big, but the yield per unit of time might not be — it depends on your setup and priorities. Know what you're signing up for before you pop the seed.
The other thing: at 1.5 metres, she's not subtle. If discretion matters, her height can be a factor. LST (low-stress training) can help manage her profile, but she'll still be a big girl compared to most autos.
Frequently Asked Questions
How long does Auto Think Big take from seed to harvest?
13–14 weeks from germination. That's 3–5 weeks longer than most autoflowering varieties. The extended timeline lets the buds fully develop their size, resin coating, and terpene profile.
How tall does Auto Think Big grow?
Up to 1.5 metres (150cm). She's one of the tallest autoflowers Dutch Passion offers. Make sure your grow space has enough vertical room — at least 1.8m after accounting for pots and lights.
Is Auto Think Big good for beginners?
She's not the hardest strain to grow, but the 13–14 week wait tests your patience. If it's your first grow, a faster auto like Think Different gives quicker feedback. Come back to Think Big once you've got one harvest under your belt.
What does Auto Think Big smell and taste like?
Citrus and lemon dominate, with a distinctive incense undertone. The aroma is noticeable during late flower — a carbon filter is worth having. The flavour carries through in the smoke with the same citrus-lemon-incense layering.
Does Auto Think Big need a light schedule change to flower?
No. She's autoflowering, so she'll transition to flower on her own regardless of light hours. Most growers run 18/6 or 20/4 from start to finish for best results.
What yield can I expect from Auto Think Big?
Dutch Passion rates her as XXL yield — above average for autoflowering varieties. Actual weight depends on your setup, light intensity, and growing skill, but she consistently outperforms smaller, faster autos in head-to-head comparisons.
Can I train Auto Think Big to stay shorter?
Yes. Low-stress training (LST) — gently bending and tying down branches — works well and can reduce her final height by 20–30% while exposing more bud sites to light. Avoid high-stress techniques like topping, as autos don't have time to recover fully.
Last updated: April 2026
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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.