Sativa Seedbank


breed by Sativa Seedbank

Here you can find all info about BlackJack from Sativa Seedbank. If you are searching for information about BlackJack from Sativa Seedbank, check out our Basic Infos, Gallery, Awards, Strain Reviews, Lineage / Genealogy, User Comments or Videos for this cannabis variety here at this page and follow the links to get even more information - or list all BlackJack Strains (4) to find a different version. If you have any personal experiences with growing or consuming this cannabis variety, please use the upload links to add them to the database!

Basic / Breeders Info

BlackJack is a mostly sativa variety from and can be cultivated indoors (where the plants will need a flowering time of ±77 days). Sativa Seedbanks BlackJack is a THC dominant variety and is/was also available as feminized seeds.

Sativa Seedbanks BlackJack Description

Sativa Seedbank BlackJack Blackjack’s mother is a clone sent to Holland from the Seattle area called Black Domino and the father is Nirvana’s Jock Horror. The Buds produced by Blackjack are hard with huge grape like calyxes covered with THC. The smoke is heavy and full of flavor terpenoids. The high is very long lasting. Blackjack is highly regarded in the Medical scene.

Height: medium
Effect: All-round effect
THC-Content: strong; 15 bis 24%
Flowering weeks: 11 or fewer weeks
Yield (S.O.G.): 450 to 550g
Difficulty: moderate

BlackJack Awards

Sativa Seedbanks BlackJack is a cupwinning variety and won the 3rd Place at the The Emerald Cup 2019 in the category Outdoor - Private, submitted by Debbie Perticara, Humboldt!

BlackJack Reviews

We've collected strain info from 2 growers for BlackJack.

General Impression Indoors

Flowering Time Indoor
55 - 75 days (±65 days)
Yield / Quantity Indoor
The crop of this strain is very high
General Impression Indoor
BlackJack is all together extraordinary and quite recommendable
User Rating
BlackJack gets 7.75 of 10 possible Points in the average!

Known Phenotypes:

  1. short, compact, indica-dominant Phenotype #2
  2. long, stretched, slowly blossoming, sativa-dominant Phenotype #1

More Info:

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Here you see the latest BlackJack photos, uploaded from our users! Altogether we've collected 1 pictures from Sativa Seedbanks BlackJack, check out our BlackJack gallery to view them all.

BlackJack User Comments

Altogether we've collected 2 user comments about Sativa Seedbanks BlackJack. Here you find the 2 english user comments:

- 28.10.2013

This comment is connected to a BlackJack review!

Seed germinated easily via the paper towel method then inserted into a top-fed DWC hydroponics setup under a 600W light. Plant was topped 3 times in the vegetative stage, leaving 8 main colas. The BlackJack plant responded to training like a champ.

After changing light schedule to 12-12 for the flowering stage, the plant stretched quite a bit, though responded well to supercropping. She seems to be a slow starter in flowering. At first I was disappointed because the buds seemed to be very thin and forming slowly. By the end of flowering stage, I realized that they had fattened up considerably, and due to the stretch, the 8 main colas were nearly a foot long. The long colas had more fan leaves than normal, and at first they sort of hid how big the buds were getting.

She was sensitive to high levels of nutrients and got nute burned until I nearly halved my normal level of nutrients. Once given lower levels of nutrients, she started sparkling right up. Trichomes everywhere - all over the sugar leaves, under the leaves, and all along the stems. I»ve never seen a plant so frosty.

The buds are quite a bit thinner than some of the other big producing plants, but are consistent and well formed which made them easy to dry/cure. Buds have a very nice smell to them, almost flowery, not skunky at all, and buds were described as cerebral and anti-anxiety, no paranoia. Has been very popular as a day strain. Overall I«m very impressed, and would definitely grow this strain again. this comment

- 06.11.2009

In my opinion this strain is not very stable. Out of the 10 seeds I received, only 7 germinated. Out of those 7, 6 survived through vegetative. When flowered 5 of those 6 turned out to be male. The only one remaining showed pistils, however about 3 weeks in, male flowers developed as well. So out of 6 plants, 5 were male and one was a hermaphrodite. Very disappointed with this strain, I was expecting world class medicinal marijuana, and ended up with shoddy genetics. The hermaphrodite for the sake of having bud I grew out. The buds looked very much like Black Domina, however the potency was just not there. Knowing the plants parents, Black Domina and Jock Horror, I would say this plant has a lot of potential, but you may need more than 10 seeds to find that good mother. this comment

BlackJack Videos

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Medical Values

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