In stock
Blackjack Feminized
Brand: Nirvana Seeds
- This is a Sativa dominant strain
- THC levels are Medium 16% - 20%
- Effects: Antiphlogistic, Relieving, and Focusing
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Blackjack Feminized
Blackjack seeds will grow into a super hybrid that delivers delicious earthy flavors and a fast flowering period. She has a high resilience to cold and wet weather and works wonderfully during short Summers. Growing Blackjack outdoors is advised as she likes to stay low, making her great for those who need discretion and a fast blooming strain.
She is a feminized strain that displays true hybrid vigor, bold earthy pungent flavors and produces an exhilarating high. A fine blend of indica and sativa genetics that takes between 8–9 weeks to flower.
Black Jack seeds will grow into a low profile plant that is best for growers with experience growing sativas and more challenging cultivars. Overall, a wonderful strain for anyone who spends the time to train their plants, and a superb choice for SCROG.
Growing
We created Blackjack cannabis seeds by crossing the super potent indica Black Domina with our Jock Horror. We managed to produce offspring that enhanced the yield and effect of the Jock Horror whilst retaining the high resilience and flavor profile from the Black Domina side.
A fine choice for growers looking for a fast finisher with a high plant resistance that will express a sativa dominance whilst growing.
Indoor
Blackjack is a low profile hybrid despite her sativa influence, meaning that she will grow medium height, so a fine choice for bedroom growers or those with limited space.
Her growth structure is more Black Domina dominant during the vegetative phase, so will grow with short internodal spacing, resulting in a small stretch once flowering begins.
Plants will be ready to harvest after 8-9 weeks of flowering, where the buds will swell into large sized nugs coated in resin.
Outdoor
Outdoors, Blackjack seeds will grow into short and stocky plants, with a bushy structure and profile. Once flowering starts, the plants will stretch and double in size, making them medium height.
She is a very productive plant that will produce great results in all climates, and will perform especially when in a hot climate such as California.
Fungal resistance
Thanks to her blend of indica and sativa genetics, Blackjack Feminized will have a high resistance to all types of weather. She can fight off mold and mildew and can endure heat stress with no problems.
Flowering time
Indoor
Under HID lighting, plants will require 8-9 weeks before they are ready to harvest. Some phenotypes will take longer than others, and we advise inspecting the trichomes after week 8 to make sure you have the optimal harvest window.
Outdoor
Outdoors, Blackjack can take between 56-65 days depending on the climate, location, and pot size. It is recommended to plant the seeds outdoors in Spring time, with a harvest date of early October.
Yield
Indoor
Yields of 450 g/m² (1,5 oz per square foot) can be achieved indoors under HID lighting, and fed nutrients. With longer vegetative times and applied training, it is possible to enhance yields even further.
Outdoor
Outdoors, it is possible to harvest 650 grams (22 oz) per plant can be achieved under the right circumstances. For the best yields possible, keep the plants in a South-facing location.
Plant height & structure
The final height of the plants once full stretched will be around 100 cm (39 inches) tall, making her a low profile hybrid.
Her growth structure will be similar to the Black Domina parent, and grow with a medium tall central cola, with bushy wide branching.
Training
Blackjack Feminized react very well to topping, tying down and pruning. We advise growing her through a screen for the biggest yields possible, and to maximize your indoor space if limited with room.
Some plants may require staking with bamboo or a net trellis to help support the heavy yielding side branches.
Smell, taste, and effect
One of the best things about this girl is her aroma and flavor. Blackjack will have an overwhelmingly pungent odor that is a combination of earth, citrus, spices, and lemon.
Her flavors are bold and long-lasting, encouraging a licking of the lips after every pull of a joint. A concoction of pungent, dank, citrus will coat the mouth with a moorish flavor that you will quickly grow to love.
When smoking a joint of Blackjack, the effects will be an immediate sensation of focus, motivation and pure mental energy. Well recommended for busy individuals who need to remain sharp during a working day. Furthermore, an excellent choice for starting the day right with a fresh cup of coffee to stimulate the mind and all senses!
Her THC levels will range between 16-20% with a CBD of 0.1-1% making this strain ideal for morning and daytime use, or those who do not want the effects of powerful indica strains. Medical patients may find Blackjack will improve feelings of well-being, helping lower depression and grow motivation.
Specifications
| Genetics | Black Domina x Jock Horror |
|---|---|
| Plant type | Sativa dominant |
| CBD | Low (0,1% - 01%) |
| THC | Medium (16% - 20%) |
| Plant height | Short |
| Yield | High (400 - 500 g/m²) |
| Taste | Citrus , Earthy , Pungent |
| Effects | Antiphlogistic , Relieving , Focusing |
| Grow difficulty | Hard |
THC
LowHigh
Medium (16% - 20%)
This strain is a Sativa
Dominant Terpenes
Humulene
Caryophyllene
Pinene
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Quality since 1995
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100% Organic
Grow vibrant, healthy plants naturally using our organic cannabis seeds.
10+ year customer of Nirvana’s here. Dependable and trustworthy company.
I grew 4 Blackjacks under MarsHydro TS3000, flowered for 9 wks; at least one plant could have gone at least another week. Very happy with the yield.
Beautiful chunky buds absolutely coated in crystals; well behaved plants, stretch is moderate and stems strong so minimal staking is needed.
In a vaporizer, at least one of my plants has unmistakable aftertaste of rose, like a light rose perfume. And this was before curing. A Delightful buzz that doesn’t knock you out, if you don’t overdo it. I’ve grown maybe 15 of Nirvana’s strains and this is in the top 10% imo (of course they are all excellent, haven’t been disappointed ever).
Very colorful and has got a strong sweetness aroma in it .
They started out strong all the seeds germinated it was great. However I ended up with powdery mildew on a couple of them. It really overtook the plants no matter what I tried to get rid of it. The buds smelled amazing and I loved growing them. I just wish they were more resistant to powdery mildew.
i started off thinking i am going to have a real hard time growning this strain.i am in the middle of the frist run and i know i am in love the training is going awsome cant wait till the end of this run i will update.... will try to see how the clones come out also!!!!
Indoor grow, flawless from start to finish. selected two phenos, one had an amazing freaky variegation on the leaves and was the star of the room also harvest-wise. Very good yield, very good effects for me, trippy and happy (grown to ~15% amber trichs). Also, minimal waste in the bowl trimmer, love those tight buds. Next time will hunt for a keeper, still sad about not taking a cut from the striped lady.
Only grew 1. Fast and easy grow. Open structure, nice buds and easy to trim. Strong!
I been growing Nirvana seeds for 15 years now, and the Blackjack strain has always been one of my favorites.
Been a Nirvana customer since 2012,,, Blackjack strain is a Perfect Hybrid.. First Off, it's name,,, Blackjack...... After you figure that out,,, it's all Down hill......👌
Really perfect strain........
Each outdoor grow season I try a few new flavors. I am looking for varieties that like my garden and grow well without chemical fertilizer. This is how I found Purple Punch, GSC , Willie Nelson and now BLACK JACK is my newest favorite.
Can't go wrong wit Blackjack.. outdoor grow; nice chunky thick fat Flowers.. euphoric high.... One of my Favorite strains....
I really enjoyed this strain. Every plant was a little bit different but they all had a similar flavor that was very tasty.
This is some kick ass smoke. Fat flowers and really filled my grow space nicely. 8oz off one plant of some really fry bud.
This strain is top notch in every respect. Grown multiple times. In my top 5 strains of all time in 30 years of growing.
say goodnight if you smoke it. your eyeballs have a timer.
another well bred cannabis cultivar from nirvana. 5/5
I normally don't review because it's requested before I get a chance to finish the process, but have done BJ in the past and it has been very nice in the terpines, taste and effect, especially after a nice long cure. Tasty and energizing to me, so I was sad to have lost my last clones a few years back and found Nirvana had dropped it AND my all time fav Blackberry. Fortunately it's back, so ordered more, and found Nirvana Blackerry through another source. Never could get a reason nor a hint that they'll ever bring back Blackberry. It was SUPER popular in my circles.
These seeds sprouted very quickly and have grown well in organic soils with natural nutrients added. The plants have grown large and bright. Looking forward to the remainder of the grow out, and cutting clones. She looks like a winner!
Great strain and very strong high as well. Tastes like cough syrup a little but is still pleasant and well worth giving a go.
I grew this strain many years ago. Recirculating hydro using Dutch Gold nutrients. I grew in exploded shale medium. HPS light
I cloned off a mother for two years with great success and minimal difficulty.
I'm trying it once again.
Updated light to an hlg 550 rpsec. Coco coir, Mills nutes.
Has proven to be a bit more difficult this time around. They devour Cal-mag. First batch had a major deficiency, this time I've upped the dose to 10-15 ml/gal.
Produces great dense buds, nice red/orange colors and good aroma.
I added a Uv light for this batch, showed pistols much quicker than without.
Looking forward to final result!
I grew this strain many years ago. Recirculating hydro using Dutch Gold nutrients. I grew in exploded shale medium. HPS light
I cloned off a mother for two years with great success and minimal difficulty.
I'm trying it once again.
Updated light to an hlg 550 rpsec. Coco coir, Mills nutes.
Has proven to be a bit more difficult this time around. They devour Cal-mag. First batch had a major deficiency, this time I've upped the dose to 10-15 ml/gal.
Produces great dense buds, nice red/orange colors and good aroma.
I added a Uv light for this batch, showed pistols much quicker than without.
Looking forward to final result!
One of the best seeds i got by online.all planted as instructed.
I didn't have great success with this one. It was still a nice smoke, but I can be a bit too casual with my plant maintenance. I might try I've of these harder to grow types again one day
Easy strain for mainlaining and other techniques. This plant dont stop to grow after being cutted. Also perfect for lollipopping as well as for cuttings. Good for beginners who love to experiment with plants. This nirvana strain is pretty stress resistant. Got some rly big nuggets under mainlining in a 15l bucket.
Great all body high, lasting good time
One of my all time favourites. One parent is Black Domina, so no wonder its great. Smooth, mellow smoke, tasty as a fresh blackberry...aewsome!
A++++++++++++++++++++++++++++++++++++++++++++++++++++++ the best ever ++++++++
This is a fantastic strain that produces big buds with sweet smells and tasty flavor.
Blackjack is a wonderful strain grows very quickly and yields huge.
This plant was a beast from the beginning. It was very vigorous and grew fast in the veg and blooming stage took about eight and a half to nine weeks to Bud fully.
