White Crack Auto Feminised Seeds from Mephisto Genetics

Mephisto Genetics
Very powerful strain strictly not for novices.
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All product information is provided 'as is', for informational and educational purposes only. The information is obtained from breeders and Seedsman cannot gurantee its accuracy. Yield, Height, THC and CBD content are given by the breeder and should be considered to be based on indoor cultivation (unless stated otherwise) by an experienced grower. Seedsman sells cannabis seeds as collectable adult genetic preservation souvenirs and reserves the right to refuse a sale to anyone we think might use them for cultivating cannabis in countries where it's illegal.

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White Crack Auto is 75% indica and was bred by crossing Sour Crack with Walter White. It performs better indoors and in the shelter of a greenhouse unless grown outdoors in a warm climate region, such as that found in Mediterranean countries. This is a medium-sized plant and one with very good yield potential.

White Crack Auto displays very high hybrid vigour and when left to grow naturally it will develop a few very fat colas. However if trained correctly it will deliver great yields from budding sites distributed all over the plant. Whichever method is used it is recommended to clear out all of the fiddly interior growth to leave bigger branches where both light and air can penetrate freely. There are 3 main phenos: a smaller one which finishes faster, a medium-sized one which is the most common and lastly a more sativa expression which grows bigger but takes a while longer.

On average the life cycle of this strain is about 65 - 75 days from germination with the average height falling in the range 60 - 90 cm. Each plant can produce something like 100 - 180 gr. each but it will be essential to have some method of air-filtering as the smell is high with this strain. Buds are dense and very resinous.

The perfume and flavour is creamy, peppery, sweet, and exotically funky with dankness. Its effect is very strong and powerful and not for the casual smoker. One grower was able to get test results of 27% THC! This strain also has medicinal qualities especially for insomnia, pain relief and as an appetite stimulant.


Breeder/Brand Mephisto Genetics
Genetics Sour Crack x Walter White
Variety Mostly Indica
Flowering Type Autoflowering
Sex Feminised
Yield 100 - 180 gr/plant
Plant Height 60 - 90 cm.
Grows Greenhouse, Indoors
Flowering Time 65 - 75 days
Medical Conditions Insomnia, Lack of Appetite, Pain
Medicinal Properties Yes
Taste / Flavour Cream, Pepper, Sweet
Effect Physical, Relaxing, Sedative, Strong

About Mephisto Genetics

View all Mephisto Genetics products

The idea or dream of Mephisto Genetics was conceived during a typical rainy ‘summer’ in England many years ago now. Two breeders, now business partners were in somewhat of a grow-off, working with equally small spaces but in competition of who could produce the best yield in the quickest time. While both breeders were growing incredible amounts of plants, neither were impressed by the effect and potency of their autoflowering varieties. It was then that a new gauntlet was laid down and the idea of Mephisto born. It was an idea neither breeder could resist and so they moved countries and their adventure really began.

The initial aim of Mephisto Genetics was simply to create and develop, unique, high potency, high quality, auto strains developed from sought after photoperiod varieties from start to finish…and this aim has never wavered.

The difference between Mephisto seeds and other companies, is that unlike a lot of brands in the market, they don’t buy in seeds and do a quick re-branding exercise.

The seeds Mephisto Genetics advertise are the ones their customers receive. They are involved in every aspect of cultivation from selection, pollination and de-seeding to sorting and packaging.

At most, two pairs of hands touch Mephisto Genetics products before it reaches our customers. They do things on a small scale, but do things properly and with love. Mephisto also actively invite their fans and customers to follow our work that we document. The list of companies where the consumer can talk directly with the breeder is limited, and Mephisto’s openness and friendliness coupled with the great reviews of their seeds and varieties makes it a no brainer for people to give them a try.

If you want your hard earned money to go to hard working breeders that have shed blood, sweat and tears into creating a special product for you, look no further than Mephisto Genetics.

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