Auto Cinderella Jack

Auto Cinderella Jack
(Cinderella 99 X Jack Herer) X Magnum
10 - 11 weeks
Indoor, Outdoor, Greenhouse
Extremely high
Prize Winner

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Auto Cinderella Jack cannabis seeds highlights

  • An autoflower with a sky-high THC percentage, even stronger than most photoperiod plants.
  • She has a very impressive flavor profile and a strong high.
  • A beautiful prize-winning autoflower with a high yield.
  • Easy to grow and ready for harvest in 10 to 11 weeks.

This project originally started with a crossing of Cinderella 99 and Jack Herer. Auto genetics were used from the “Magnum" genetic line, which guarantees above average harvests. With THC levels consistently in excess of 20%, this is one of the most powerful autoflowering cannabis strains available today.

Auto Cinderella Jack is the result of many generations of selective breeding focused mainly on one characteristic, the THC percentage. By applying careful breeding techniques (only possible with a skilled master breeder) this strain has become so strong that it stood out from the rest of the competition.

The parent genetics of these Auto Cinderella Jack hybrid weed seeds are known for being potent, full of flavor and with great yields. Both Cinderella 99 and Jack Herer are two very strong cannabis strains with an excellent reputation. Crossing these, and then breeding this cross with the Magnum autoflower line from Buddha Seeds has created a truly epic autoflowering cannabis seed variety.

Auto Cinderella Jack cannabinoid and terpene profile


The percentages displayed with the terpenes indicate the ratio in which the terpenes were found in this variety. Learn more about terpenes.

Auto Cinderella Jack cannabis cups

Year Cannabis cup Category
2021 HighLife Cup Autoflower
First prize
2018 Copa Esmeralda Overall
Second prize

These classic cannabis seeds are easy to grow

The majority of the plants will be average in height. There are a few exceptions, however, including a larger Sativa-dominant phenotype which is a little less compact but yields a lot more. In addition, there are also special "Christmas tree" phenotypes.

Although some of these plants stay a little smaller, they are fantastic plants to grow. Strong, compact and filled from head to toe with compact sticky flowers with a good flower-to-leaf ratio.

Auto Cinderella Jack can be grown indoors, outdoors or in greenhouses. She actually does well everywhere, under LED, HPS or CMH (ceramic metal halide) lamps or in a microculture with TL/TCL energy saving fluorescent bulbs.

In every grow setup it is possible to achieve top quality buds and results with this high performance autoflowering seed variety.

She also does well outdoors and in greenhouses. It is possible to grow her in all climates. Pay extra attention to high humidity.

Because of the compact buds, in some phenotypes it is important to keep the relative humidity (%RH) as low as possible during flowering. She usually grows into a plant about 0.75-1 meter high, with few exceptions.

The genetics used to grow Auto Cinderella Jack guarantee the following traits:

  • An extremely potent and tasty autoflower that, in addition to a very strong high, also has a wonderfully fresh and fruity, pine-like aroma and taste.
  • An easy to grow plant that does well both in the hands of a beginner and in the hands of an expert.
  • Compact plants of medium height with strong branches and full-flower clusters. Due to its compact buds this autoflower strain is also easy to harvest.

Auto Cinderella Jack is the perfect autoflower seed for growers looking for the highest possible quality in a cannabis strain. The dried buds of this strain are not recommended for novice smokers because of the extremely high THC percentage.

Auto Cinderella Jack cannabis seed to harvest time

These marijuana seeds grow from seed to harvest in about 10 to 11 weeks. In general, we recommend growing this strain indoors on a 20/4 light schedule (20 hours of light and 4 hours of dark). This short 4-hour dark period ensures that the plant has time to rest from photosynthesis and can recover, ready for the next day.

Indoors she is best grown in a SOG setup, SCROG cultivation is possible for very experienced growers, but we do not recommend it for this strain. Due to the more compact nature of the plant, it is not such a suitable plant for scrogging or bending, ‘cropping’ or ‘super-cropping’. These plants also do well when grown naturally, for example with slightly less plants per m2 in larger pots. Make sure that the plants are placed in the pot from the beginning, or immediately after sprouting.

Outdoors and in greenhouses, it may take a little longer to fully mature. Keep in mind that in some circumstances it may take 12 to 13 weeks.

In moderate climates it is possible to produce at least 2 harvests per season, in dry, warm climates (Mediterranean) it is even possible to complete 3 harvests per outdoor season with the right planning.

For the best results outdoors, especially in the more northern/southern colder and wet climates, we recommend pre-growing the plants indoors for 1-2.5 weeks under a 20/4 light schedule. Preferably in a pot of about 0.5L-1 L. This ensures that the plants go outside with a firm root ball and the advantage of a head start. This usually increases the chances of success and yield.

Auto Cinderella Jack cannabis seeds average yield

Auto Cinderella Jack produces good yields both indoors and outdoors. Indoors, she can easily yield between 400-500 g/m2. Outdoors, yields of 100-150 grams per plant are fairly easy to achieve. With a good pot, organic soil, nutrition and sufficient (sun) light, she will provide the grower with a large number of compact buds per plant.

Auto Cinderella Jack cannabinoid and terpene profile

Auto Cinderella Jack is the most potent autoflower in our collection and the strongest autoflower in the world to date! With a THC percentage of almost 26%, verified by 2 separate labs (with the HPLC method), it goes without saying that these autoflower cannabis seeds will provide a very strong high.

Buds are super white and loaded with trichomes, which in turn are packed with THC. In addition to a high THC percentage, this strain also has a very strong terpene profile. This autoflower strain guarantees a unique powerful high with a wonderful aroma and taste.

This Dutch Passion auto has a very powerful terpene profile with a strong pine-like, spicy and fruity aroma. A mix of pine and herbs is the dominant scent.

Many phenotypes also have a fruity and fresh character, producing a very positive influence on the smell and taste. It is therefore not surprising that the four most dominant terpenes are the following: alpha-pinene (Pine), beta-Myrcene (Floral, earthy, fruity), beta-caryophyllene (Spicy and woody) and finally limonene (citrus, fresh and fruity).

The combination of these terpenes and the strong cannabinoid profile provides a wonderfully tasty high that hits hard and lasts for a long time.

Auto Cinderella Jack produces compact plants and buds. They are medium sized plants which in some cases grow in a beautiful Christmas tree structure. These plants are filled from head to toe with beautiful dense flowers that glisten from the crystals. Due to the compactness, the buds are also easy and quick to cut and trim.

Auto Cinderella Jack cannabis strain effects

Auto Cinderella Jack gives the user a great strong high, the effect is best described as a mix of an energetic "up-high" combined with a powerful "body stone". Some phenotypes lean a little more towards the Indica side (body stone) and others a little more towards the Sativa side (up-high). Customers describe this hybrid high as a very pleasant high that gives a good punch and can last for a long time.

Expert cannabis grower tips for Auto Cinderella Jack

For best results, we recommend growing this strain indoors under LED lights. Preferably using an LED lamp with a controllable spectrum.

This makes it possible to apply ‘Blue Light Treatment’ at the end of the cultivation (to optimize terpene profile), but this is not essential.

Sometimes a plant can take 1-2 weeks longer than the indicated flowering time, always try to harvest the plants at the right time of maturity for the highest quality and yield. This can differ per person (and per plant) and we therefore recommend viewing the plants individually with a microscope. Based on the maturity of the trichomes, a decision can be made whether or not to harvest the plant.

 Auto Cinderella Jack data sheet

Autoflower cannabis seeds Strain type: Autoflower
Classic cannabis strain Family: Classics
Cannabis strain lineage Lineage: (Cinderella 99 X Jack Herer) X Magnum
Hybrid (Indica / Sativa) Genetics: Hybrid
Cannabis cup winner Cannabis cups: 2x (2018, 2021)
Grow environment Environment: Indoor, outdoor, greenhouse
Plant height Plant height:
Seed to harvest time Seed to harvest: 10-11 weeks
Plant yield Yield:
THC content THC level: Extremely high (>20%)
Terpenes Terpenes: A-Pinene, B-Myrcene, B-Caryophyllene, B-Pinene, Limonene
Taste Taste: Sweet, fruity
Hybrid effects Effects: Hybrid high


All products listed on Dutch Passion USA contain 0.3% THC Delta-9 or less. You can find the lab results for all our products here. No statements on this website have been evaluated by the Food and Drug Administration (FDA). Furthermore, all products sold are not intended to be used for diagnosing, treating, curing, or preventing any disease. Our seeds should be kept as collectible souvenirs by anyone located in an area where cultivation of cannabis is not legal.

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