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My Bruce Banner Autoflower Grow Report

Last updated: 29 July 2025

bruce banner auto strain

Hi guys. I recently grew Bruce Banner Autoflower by Original Sensible Seeds from seed to harvest and wanted to share my experience. The strain lives up to its superhero namesake — bold, energetic, and surprisingly robust. I’ve always been a fan of comic books, so I was excited to try this strain out.

bruce banner auto strain review

It took this strain almost 16 weeks to fully mature, which really caught me off guard. Most autoflowers I’ve grown wrap up in 10–12 weeks, so this one was definitely on the longer side. With that being said, they were easy to grow and required fairly little maintenance – I only defoliated twice during the flower cycle. Bruce Banner Auto has also shown itself to be extremely resilient to pests and infections. I’ve had to deal with more than my fair share of pathogens in my garden, so I always look for strains that are resilient to pests.

Disclaimer: This guide is intended for use in regions where cannabis cultivation is legal. Please ensure compliance with local laws and regulations before attempting to grow or harvest cannabis.

Gear I Used

I set up a garden using a 2 x 2.5ft (.06 x .0762m) tent in a spare room of my house. Since I was only growing a single auto plant, that was plenty of room for my purposes. I started by germinating my seed in a rock wool cube and transplanting it into a 3-gallon (11.3 L) pot filled with coco coir. I wanted to go with a hydroponic setup because it allowed me to dial in my nutrients for this experiment.

I used LED lighting throughout the entire grow process. They’re energy-efficient, generate low heat, and are ideal for small indoor grows like mine.They also generate less heat, which is important since my ventilation isn’t perfect. Since I only had one plant and the tent featured reflective walls, I figured a single lamp would be enough power.

Disclaimer: Ensure proper ventilation and follow safety guidelines when using electrical equipment such as LED lights and humidifiers in your grow space.

Bruce Banner Auto Grow Diary – My Actions Seed To Harvest

As I’ve mentioned before, Bruce Banner Auto took more time to flower than I thought it would. I harvested it after 16 weeks, with the first 5 weeks spent in the veg cycle.

Weeks 1-5: Veg

bruce banner auto grow report

I started out with four seeds and was excited when I found all of them germinated. I chose the strongest-looking one out of my sprouts, and luckily it ended up being a female. During the first 5 weeks of the veg cycle, the plant stretched nearly a foot (30cm) tall. I topped it once to help it grow into two even colas.

I kept the lights on in my garden for 18 hours per day. I tried to keep my ambient temperature fairly consistent, at 76 degrees Fahrenheit (24 degrees Celsius) during the day and 72 degrees Fahrenheit (22 degrees Celsius) at night. I tried to keep my ambient humidity at around 60%. While this is a little high for the flowering stage, it’s perfect for veg, when plants need moisture to help support their verdant stem and node growth. I gradually increased the total dissolved solids (TDS) of my mix to 1200 PPM over the course of the veg cycle, and I kept the pH at a constant 6.0.

Early Flower: Weeks 1-4 of Flower Cycle

bruce banner #3 auto strain

The first few weeks of the flower cycle are generally when the most pronounced stretching happens. Plants experience a huge growth spurt during this time, adding length to their branches. Plants can often double in size when they stretch.

The most pronounced stretching for this Bruce Banner Auto occurred during this timeframe, with my plant growing nearly 30 inches (90cm). By the fourth week of the flowering cycle, I’d increased the TDS of my nutrient mix to 1480 PPM and maintained a steady 6 pH. My ambient temperature maxed out at 80 degrees Fahrenheit (26.6 degrees Celsius), and the air humidity in my garden hovered at around 40%. I kept my light on for 18 hours a day to supercharge my plant’s growth during this time.

Mid Flower: Weeks 6-10 of Flower Cycle

bruce banner #3 auto strain review

At this point, the plant is pretty much done stretching. I didn’t notice any significant height difference between my plant’s height at the beginning of week 6 and when I harvested it. Instead, I started to pick up on some other major changes.

First, week 6 was when I began to notice any aroma from my plant, which only got more powerful as it developed. By week 10, my garden was emanating the loud, noticeable smell of this pungent strain. I maintained my light, temperature, and ambient humidity at the same level as I’d kept them in the early flowering stage. I also kept my mix the same at 1480 PPM and 6.0 pH.

Disclaimer: Please note that experiences are subjective and should not be seen as guaranteed.

Late Flower: Week 11-Harvest

bruce banner #3 auto grow report

At this point, I was starting to notice powerful aromas emanating from my tent. My plant had bulked out nicely, and over the plant’s last week or so of maturity, its trichomes faded from stark white to a rich amber color. Once I’d seen all the trichomes fade, I knew it was time to start harvesting.

I reduced my ambient temperature and humidity to mimic their natural progression during autumn. By harvest time, my daytime temperature peaked at about 72 degrees Fahrenheit (22.22 Celsius). I also lowered my humidity to about 30 degrees.

Final Thoughts

All in all, I’d spent almost 16 weeks nurturing this single plant from seed to flower. That’s a long time for an autoflower strain, but the wait was definitely worth it. After harvest, I weighed my yield and ended up with about 12.5 ounces (355 grams). After drying and curing, I was left with about 2.75 ounces (78 grams). I was a little disappointed with the overall weight of my dry yield, but the quality of the buds definitely held up.

I was actually pleasantly surprised with the state of the buds. Although they’d reduced their weight by nearly five times during the drying and curing process, the cured buds were hard, dense, and full. They smelled great and crumbled nicely between my fingers when I broke it up to roll a joint. I’ll definitely be trying this strain again – possibly with soil, or maybe outdoors.

bruce banner auto grow report

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by
shainmichael101
I've grown autoflowering BB twice, and this is my second time with two plants. My seedlings started slowly; in fact, one of my taproots left half of the initial growth (the initial nutrient inside the seed coat) intact with the seed coat when I planted. I was worried it wouldn't survive. The plant is now almost 45 cm tall at 7 weeks and 4 days. I only selectively removed leaves to avoid shade. The second BB plant is almost 69 cm tall and has many flowering points. All the pistils on both plants are a beautiful white, and the leaves are in a prayer position (pointing upwards towards the light) during their 18/6 light cycle. My ppm is between 750 and 850. My light distance is about 42 cm from the top of the canopy, at about 730 ppfd. The flowers are starting to stack nicely, with fairly tight internodal spacing. My first grow of BB auto was short (35 cm) and yielded a dry weight of 52 g. It had a pronounced citrus aroma at the end. It was harvested 87 days after germination. I'm curious to see how long my second grow will last. BB is quite a strong and potent strain. Good luck to all.
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Citizen Jane
After two weeks of drying in jars, my Bruce Banner autoflowering seeds from Fastbuds smell like watermelon candy and taste like mentholated pine in my vape. Quite euphoric. They took over 15 weeks from germination.
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bob ross
Your lights were too weak. That's why your internodal spacing is so wide. The nodes should develop stacked on top of each other if you give them enough light. Also, you over-fertilized. Hence, the 1200 ppm tip burn during flowering is the maximum if you fertilize every time...
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Herbies
Hello Bob, Thank you for sharing your experience with us; light is indeed an important factor for healthy plant growth
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Sha
I planted 10 seeds outdoors in a net-covered area, and they've grown into incredible specimens. I have them in 5-gallon buckets, and 6 of the 10 are 9 feet tall. I had to bend and tie them down to keep them from touching the net, and they're still growing. They're in week 11 of flowering and are full of buds. I grew one last year, and it only got 4 feet tall. I'm amazed at how much they've grown this year. I have a couple that already have amber and white buds. It looks like I need to flush them now and harvest.
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Herbies
Hi Sha, thanks for the feedback. They are indeed capable of growing into a healthy, large plant; hopefully the resulting product will meet all expectations!
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Brucebannerteam
Hello, thank you for sharing, I was curious... what nutrient mix do you use for this experiment?
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Bizzy
Hey, I'm growing the Bruce Banner and the seedlings are 14 weeks old and 3 inches tall, that's about right
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Herbies
Hi Bizzy, They're supposed to be bigger now, they might be missing some parts. Please contact us by email, we'll do our best to help you
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Greenpatch
No, not good at all, but since it's automatic, there's not much you can do except check your pH, salt level, and lighting.
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I need help
I have two identical seeds using a 2000w LED but the light rail is 380w, they don't seem to be growing well
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Herbies
Hello, Plants can slow their growth not only due to lighting. Please check the growing conditions for your plants and consider improvements for better growth. Sincerely, Herbies
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Tia
I just started my first grow, Bruce Banner seeds. It's been a week and they're growing well. I'll give reports later.
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JustMy_2centz
Wow, that's a lot of weight loss, but if the quality is there, then you don't need to smoke as much. So it balances out. My Bruce Banner is 11 weeks old; it started flowering in the third week! Now the buds are swelling nicely, and the stems are 70% amber, but the trichomes are still clear. The only thing is that the top sugar leaves are yellowing, so it's almost done. The only difference is that I kept my MarsHydro 600w on 24/7 and only used a mix of Ocean Forest, Super Soil, and Fox Farm. Every seven days, I mixed the two soils together and used it as a top dressing and watered! I'm just hoping that out of the 20 kolas, I'll get at least 4 to 6 zips. Thanks for your grow report, it gave me more information about BB#3 since my first grow over the last 20 years. JustMy_2Centz
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Herbies
Hello, thank you for your feedback on this article; we're glad to know you found it helpful. Indeed, there are a wide variety of methods and tips you can use to improve yield, and there's also an area to experiment with. This report only shows one of the many ways to do so. :)
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Rc
Did you dress your plants every week or just during the flowering period? I'm in my second week with the same variety. Thank you.
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