Blackberry Gum© Autoflower Cannabis Seeds

(Bubble Gum X Blueberry) X Auto Blueberry

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Pack: 1
  • 1 Seed 13.00€
  • 3 Seeds 26.00€
  • 5 Seeds 39.00€
  • 25 Seeds 156.00€

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Life cycle: 11 weeks
Grow type: Indoor/Outdoor
Dominant: Indica
Yield: Massive
THC: High (20 - 26%)
Flavor: Candy Fruity
Effect: Relaxing
Experience: Intermediate

Buy Blackberry Gum Auto seeds online

Blackberry Gum© Autoflower is part of our Seedstockers Superior collection of autoflower cannabis seeds, and she has been created to convince the most sceptical growers that quality is not at odds with autoflowering speed. She is an indica-dominant strain with 20-26% THC, a fruits of the forest aroma with a caramel undertone and a relaxing effect. From seed to harvest in 11 weeks, she delivers massive yields in your grow tent, on your balcony or in your garden. Who could ask for more?

Details of Blackberry Gum© Autoflower Cannabis Seeds

Life cycle 11 weeks
Grow type Indoor/Outdoor
Dominant Indica
Yield Massive
THC High (20 - 26%)
Flavor Candy Fruity
Effect Relaxing
Genetica (Bubble Gum X Blueberry) X Auto Blueberry
Experience Intermediate
  • Powerful fruity flavour
  • Strong sedative relaxation
  • Perfect for indica fans

Blackberry Gum© Autoflower genetics: Bubble Gum × Blueberry × Auto Blueberry

(Bubble Gum X Blueberry) x Auto Blueberry → Blackberry Gum© Autoflower

To create this powerful indica-dominant automatic hybrid, our team of breeders went through a lengthy breeding and selection process. We wanted an autoflowering alternative to debunk the myth that automatic strains can't reach the same aromatic standards as their photo-dependent feminised sisters.

The photo-dependent parent was born from the cross of two renowned strains: Bubble Gum, a strain renowned for her unique gum flavour, and Blueberry, undoubtedly one of the most famous blueberry flavours on the cannabis scene. A union that couldn't possibly fail.

With the result of this cross between two of the most fragrant terpene profiles of the cannabis universe, all that was left to do was to provide some autoflowering character. To achieve this, we chose Auto Blueberry, which not only provides the autoflowering gene but also helps to fix Blueberry's outstanding characteristics, resulting in a high degree of stability and quality.

What the plant looks like: compact indica, loaded branches and purple tones

Due to her indica dominance, Blackberry Gum© Autoflower develops into robust plants of low-medium height that grow vigorously during their first weeks of life and continue to grow a bit more during the flowering period.

Her compact and branchy structure offers the ideal frame for her dense buds, as the lateral branches develop chunky colas at the height of the apical bud. In addition, her flowers are extremely dense and heavy, normally well above the average for autoflowerings.

She is a real gift for the senses, including your eyes: towards the end of flowering she takes on stunning purple hues which turn her into a truly decorative plant.

Massive yields: up to 500-550 g/m² indoors

Blackberry Gum© Autoflower is synonymous with efficiency because she can produce highly abundant yields despite her reduced size. The key is in the weight of her buds and in her side branches, which become filled from top to bottom with tight buds brimming with resin.

When grown in an indoor grow tent or grow room, this gem can deliver between 500 and 550 grams per square metre. Outdoors she can also be grown with great results, which is why she has become the queen of urban grows on balconies and terraces, where she produces an average of 100 to 200 grams per plant.

Aroma and flavour: forest fruits, blueberry and candy

FruityCandyForest fruitsBlueberryCoffeeCitrus

Her complex terpene profile is one of her most outstanding traits, with an aroma and flavour so captivating that even the most demanding palates will be satisfied.

Her aroma is reminiscent of fruits of the forest with a delicious caramel undertone, so irresistible that you'll almost want to take a bite of her flowers. In the mouth, her deep fruity flavour intermingles with notes of coffee, clear touches of blueberry and light citrusy nuances reminiscent of orange or lemon sweets. The perfect strain for anyone looking for a fruity aroma with a unique and distinctive touch.

RelaxingEffect
IndicaDominance
20%-26%THC

Blackberry Gum© effects: indica relaxation for the end of the day

Blackberry Gum© Autoflower produces incredible amounts of aromatic resin loaded with THC, with levels that can reach as high as 26%. Her potency might not be for everybody, so she is recommended for users looking for incredibly powerful psychoactivity. Thanks to her indica dominance, she delivers a soothing bodily effect, ideal to help you wind down at the end of the day.

She is a true "night strain": her overwhelming psychoactivity invites a very pleasant relaxation, perfect before going to bed. An effect that is quickly noticeable and leaves a long-lasting sense of well-being.

How to grow Blackberry Gum© Autoflower seeds: key tips

11 weeksLife cycle
500-550 g/m²Indoor yield
100-200 gOutdoor yield per plant
IntermediateExperience

This is a hardy strain that doesn't require much maintenance to deliver amazing high-quality yields. As she is so quick, she is more likely to escape dangers such as pests and fungi. Having said that, it's important to keep some factors in mind to get the best results.

Top tips to get the most out of her:

  • Avoid transplanting: she will start flowering automatically after the first 3 to 4 weeks. She is especially sensitive to transplanting, which could stress her out and stop her growth, so place your seeds in their final pot once they have germinated.
  • Use an aerated substrate: she grows better in a light mix, such as ¾ soil and ¼ coco coir, perlite or expanded clay. This way the substrate won't become too compact when watering and you avoid waterlogging.
  • Water lightly but frequently: over-watering is one of the most common mistakes with automatic strains. Especially during the first two to three weeks, water lightly but often to prevent your plant from drowning.
  • Avoid pruning or training techniques: her vegetative period is so short that she wouldn't have enough time to recover from methods like Topping, Fimming, SCROG or LST.

Is she the right choice for you?

✅ YES, if you're looking for...

  • A forest fruit and blueberry aroma with a candy background
  • Massive yields: 500-550 g/m² indoors
  • Compact plants, ideal for small spaces, balconies and terraces
  • Speed: from seed to harvest in 11 weeks
  • A relaxing effect for the end of the day

❌ NO, if...

  • You want an active, daytime effect
  • You want to use pruning or training techniques
  • You have a low THC tolerance

Blackberry Gum© Autoflower FAQ

How long does Blackberry Gum© Autoflower take from seed to harvest?

She completes her life cycle in just 11 weeks from germination to harvest: a 4- or 5-week vegetative period, when she grows most vigorously, followed by about 6 weeks of flowering, when the plant still continues to increase in size.

How much THC does she have?

Between 20% and 26%. She is a potent strain, recommended for users looking for powerful psychoactivity.

How do I grow her indoors?

Her moderate size makes her the perfect candidate for grow tents or grow rooms with limited space. Even though she starts flowering regardless of the hours of light she's exposed to, it is best to keep her on an 18/6 or even 20/4 light cycle throughout her whole life to get the most out of her.

LED lighting systems are ideal for this strain, as they emit less heat and are highly efficient. Together with an organic, high-quality nutrient regime, they help her express all her aromatic potential.

How do I grow her outdoors?

Grow her in the spring and summer months, when the temperature is over 19 ºC. She is especially resistant to pests and fungi, so she's a safe bet even in cold regions with short summers, and in warmer climates she gives you the chance to grow several crops within the same season. Her moderate size also avoids attracting the attention of curious neighbours.

For abundant yields, use large pots (11 litres at least, ideally 20) so she can develop an extensive and strong root mass.

Is she good for city balconies and terraces?

Yes. Her compact size means she's discreet and doesn't attract unwanted attention, whilst still delivering humongous amounts of aromatic buds. And because she doesn't depend on the hours of light to start flowering, light pollution from street lights is not a problem, unlike with photo-dependent feminised seeds. That's why she has become the queen of city balconies all around the globe.

Buy Blackberry Gum© Autoflower seeds at Seedstockers

Seedstockers' main objective is to provide cannabis growers from all around the planet with the best marijuana genetics, giving access to top-quality and highly stable strains.

Choose your pack of 1, 3, 5 or 25 Blackberry Gum© Autoflower seeds and try one of the best autoflowerings on the market in your own grow.

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4.5 rating 26 Reviews
What other growers say about Blackberry Gum© Autoflower Cannabis Seeds

DID YOU ENJOY YOUR EXPERIENCE WITH THIS VARIETY? LET US KNOW

rating
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DarkWhite
rating
18/08/2026
Excellent genetics

The seeds went straight into 18-liter pots after germinating. With just watering (and nutrients from the soil), they grew to about 1.20 meters tall. 60ish grams per plant. With some topping and tying down, that could definitely be more. The roots had filled about half the pot (so a smaller pot would work, 11 liters for example). A good smoke, good flavor and a nice stoned feeling.

GuerillaGorilla
rating
30/03/2026
Blackberry Gum are 2 favourites

This will be my first germination with Seed Stockers and this strain is a combination of two of my favourites, Bubble Gum and Berry, Yum, and Indica too so great for me as I don\'t enjoy being over stimulated! I will share the results.

Edo
rating
27/09/2025
Tasty potency

Was very happy with the quality and quantity this plant produces. Grew 2 plants, one was more Blackberry(colorful bud, and blackberry aroma's), the other more Bubblegum, both were nice and potent. I had absolutely no problems growing these.

Greg collins
rating
24/09/2025
Very nice!!

Im days away from cutting down my very purple BG the other is more green but is taking on purple hues and may run a week or 2 longer I got these free!! I will be back for more after tryin some of seedstockers other pips(waitin on og kush order fer next grow) you wont be disappointed people!! Only 4 stars coz l aint smoked it!!

Marco
rating
22/08/2025
Blackberry GUM Auto - Excellent !!!

Germination rate 5/5. very high yield !!! Used LST with great success. Tied the branches down with wire. Did a little defoliation now and then (carefully). All 5 phenos turned out different. 3 with dense buds, 2 of those very resinous and the other nice with lots of red hairs. All tasted great and sweetish. Strong effects. So for an auto, absolutely excellent and easy to care for.

striker
rating
16/08/2025
Fruity Kush, good smoke.

Quite different from the average autoflower, my two plants had purple hues in the buds. One ended up with a light blue main bloom, the other was a bit greener. Both also had a rich scent of fuel and fruit, really a contrast to the usual. The smoke was good after a week of drying and a month in my jars. The yield was above average for my space — a good choice.

Rambo
rating
23/07/2025
Beautiful!

This is the most beautiful plant I have ever grown. This lady is truly a pleasure to cultivate. She grows vigorously and can even yield more than 300 grams in soil if the conditions are good. On average, I’d say between 150 and 200 grams. Depending on the phenotype, she smells of berries or of bubblegum. The one with the bubblegum scent is the best-smelling plant I have ever come across. I was already sold before I had even smoked her. The high is in your head, but you can still clearly feel that indica vibe. This strain is something everyone should try at least once. I’m growing her again now!

Steffen
rating
02/06/2025
BlackberryGumAuro - A top-class painkiller

As a patient with facet joint osteoarthritis and multiple damaged discs, this strain is my first choice. The full THC and terpene profile is the ultimate painkiller. Clear notes of berries and bubblegum in both taste and smell. Beautiful colors in the individual strains. Generous yield. For me, the first alternative for growing at home.

Xavier
rating
16/11/2024
Best variety by a long way

The growth potential on this variety is the best I have seen, she reached 1m tall and gave me over 130g from a secret garden 120cm tent. Best of all is the color and aroma, unusual and special. Friends loved it

Kyote
rating
19/09/2024
Blackberry Gum Auto

Grown outdoors organically, let her run for 90 days. After drying for 12 days and a trim, the test bud was better than the Blackberry Gum photo I grew last year. Definitely a favorite and will always keep some BBGum in the medicine cabinet.

F.N.
rating
25/03/2021
Black berry gum auto

I just love this strain I have grown more black berry gum autos then any other auto on the market. The price is a quarter of the competition seed banks for the same quality and reliability Black berry gum auto is always going to be my favorite autoflower plant.

Andre
rating
18/10/2020
What an amazing plant, the pace at which she grows is amazing. Big yields, Very High THC. Easy to grow. It’s now in my favorites, for sure

What an amazing plant such big yields such high THC easy to grow and beautiful to look at. I can’t quite put my finger on the taste but it is just awesome

Marc
rating
08/06/2020
Quality

These are great seeds only done five all popped no problem, outdoor greenhouse grow these plants are massive bud producers with a smell of candy, fruit ,and had one with a very citrus smell the crystals are out this world would recommend this strain all day

Godsflowers420
rating
24/02/2020
Interesting

Grown outdoors in the north of England Germinated dry seed in riot root cubes indoor and vegged indoor under led light for 10 days till was 2 nodes tall. Liked her feed strong in fact she loved a strong feed threw out veg and flower. Was planted directly into the earth in a homemade organic soil Iv maintained for over 20yrs. Grew to around 1.2m tall and loved are beautiful British weather ha ha , produced some really smelly covered in trichomes little flowers but was due to the poor weather. All round very strong plant and genetics was very impressed. God bless god speed

blackJack678
rating
22/09/2019
Очень хороший магазин, отправка в день заказа взял

Очень хороший магазин, отправка в день заказа взял 6 семян получил бонус, всем доволен спасибо)

strawzy
rating
22/09/2019
Sensation is relaxing but at the same time can sti

Sensation is relaxing but at the same time can still function. I love that i did not get dry eyes

baguette
rating
21/09/2019
The weed I grew helps relieve my

The weed I grew helps relieve my leg pain after my surgery.

Benjamín
rating
21/09/2019
Helps with stress but doesn't make me sleepy. The smell and

Helps with stress but doesn't make me sleepy. The smell and taste are incredible. Much appreciated

Luca
rating
21/09/2019
Medicine with good taste and one of the best y

Medicine with good taste and one of the best yields. 5/5

Ultima
rating
10/09/2019
Excellent!

Grown several times now and I keep coming back for more! Such an awesome bean it should be at hand at all times!

Higherground
rating
01/08/2019
awesome

So so happy, this strain is awesome. Grows beautifully, and the smell... damn. Will order some more soon!

Big zaddy
rating
04/05/2019
Very good

Very easy grow. Great medicine trust.very strong and smell is awesome. Please grow this plant.

HeX
rating
18/04/2019
Beautiful!

Very Nice, healthy plant, great harvest. Took around 3 months from seed. it is strong and it smells awesome! So far my favorite!

Celso matsuda
rating
23/11/2018
Forte

Que maconha boa sou aqui do Brasil e ela cresceu muito bem aqui no outdoor THC forte e bem cheirosa recomendado a todos brasileiros ....

Kyle greenthumb
rating
29/10/2018
Very potent one of the best aytos ive ever grown

Defenitliy will be trting more strains. Has a very strong buzz and is very vigorous.

Hecno AFN
rating
07/10/2018
awesome

Great strain , Last plant I got 187 grams and after 1 month cure the flavour really came out with a very nice after taste . Also a very tough plant ideal for topping and training .