A happy and pretty widow

Blue Widow is a feminised cannabis seed that leaves a deep imprint wherever she goes, which is no surprise, being one of the most admired and most highly regarded cannabis jewels of the international market. At Dinafem Seeds, we wanted to create something spectacular and we soon agreed to cross two cannabis heavyweights with rich and complex traits: Blueberry and White Widow. Humbly speaking,… Read more >
  • Indica: 50%

    Sativa: 50%

  • THC: 12-16%

    CBD: Medium

  • Outdoors:

    • 1100 g/plant

    • 3 m

    • Early October / Mid-October

  • Indoors:

    • 525 g/m2

    • 50-55 days

  • Blueberry
  • x
  • White Widow

Perfect for: Extending your catalogue with a stable, productive, tasty and colourful cannabis strain.

Blue Widow is a feminised cannabis seed that leaves a deep imprint wherever she goes, which is no surprise, being one of the most admired and most highly regarded cannabis jewels of the international market. At Dinafem Seeds, we wanted to create something spectacular and we soon agreed to cross two cannabis heavyweights with rich and complex traits: Blueberry and White Widow. Humbly speaking, we can't but say that we couldn't have done it better. The mix of these two strains has resulted in a top-notch and balanced 50% Indica/50% Sativa hybrid of exceptional quality that has been very highly rated by experts in the sector.

  • 1st prize in the 'Best Outdoor' category at the 2015 Copa Cannabis (Uruguay)
  • 3rd prize in the 'Best Indica' category at the 2013 Treating Yourself Expo Cannabis Cup, held in Toronto (Canada)


Blue Widow is a marijuana strain with a breathtaking pedigree, meaning incredibly beautiful, sturdy and stable plants are obtained with her. Although not particularly big, they're surprisingly resistant and compact, with lots of branches that end up completely full of bulky buds at the end of the flowering. And, as the icing on the cake, some beautiful purplish and blueish hues cover their entire body when the temperature drops at night during the flowering.


Blue Widow produces generous top-quality crops of compact, bulky buds completely covered by the typical thick layer of white and smelly resin. The yield indoors could rise to 525 g/m2 and to 1100 g/plant outdoors; some very interesting figures knowing, besides, that we’re talking about top-quality weed and high-end irresistible resin.

Aromas and flavours

Blue Widow showcases very attractive organoleptic qualities, with buds giving off an intense and sweet fruity aroma accompanied by sweet-and-sour hints and some touches of berries. The complexity is such that some people claim her to be a delicacy. Is your mouth watering yet? You bet it’s not for nothing! You’ll see…


Blue Widow delivers an initially cerebrally stimulating and psychedelic high that turns more physically relaxing as time passes by. A potent, balanced and long-lasting puff of wellness that has come to stay. We’re ready to enjoy a peaceful rest, a good movie or a jam session! And, to top it off, she showcases many therapeutic properties: she can stimulate the appetite, help you sleep and alleviate muscle tension, for example.


Blue Widow has an enormous potential that has to be exploited. How? The key is to make sure she receives a balanced diet and that the growing conditions (light, ventilation, tidiness and cleanliness) are just perfect. Any type of grower, experienced or not, can obtain great results with her because she grows vigorously. In a remarkably short time, in some 50-55 days indoors, and using a growing method that we master, the results will be more than satisfactory. Outdoors, she thrives in temperate, Mediterranean climates and, of course, under the protection of the greenhouse. In either case, she’ll be ready for harvest by early to mid-October. If we live in a humid region instead, there's nothing to worry about because she copes well with all kinds of weather.

Characteristics of
Blue Widow cannabis seeds

Genotype50% Indica / 50% Sativa
CrossBlueberry x White Widow
Indoor flowering50-55 days
Indoor yield525 g/m2
Outdoor harvest timeEarly October / Mid-October
Outdoor yield1100 g/plant
Outdoor height3 m

*Cannabinoid content (THC, CBD…) may vary depending on external factors such as the growth medium, the grower’s experience, the growing technique (SOG, SCROG…), the environmental conditions and genetic variation.

Dinalab Analysis


Total amount of cannabinoids*: 17.17%

*Cannabis contains at least 113 cannabinoids, which can be either acidic or neutral. When heated – e.g. through smoking, vaping or cooking – acidic cannabinoids decarboxylate and become neutral. This report refers only to the main cannabinoids – acidic and neutral – in this strain.


Total amount of terpenes*: 2.172%

*Cannabis contains over 100 terpenes. These compounds create the aroma unique to each strain and can interact with cannabinoids. This report refers only to the 15 most abundant terpenes in this strain.

These results have been obtained by liquid chromatography coupled to a UV-visible HPLC Detector (HPLC-UV/VIS) for identifying the cannabinoids and by gas chromatography coupled to a flame ionization detector (GC-FID) for the collection of terpenes. The equipment has been previously calibrated and quality control samples were run to assure the accuracy of the results. The data shown here is the average of samples coming from several plants grown from seeds by different growers.

The data contained within this report was collected in accordance with the requirements defined by the United Nations Office on Drugs and Crime in their Recommended Methods for the Identification and Analysis of Cannabis and Cannabis Products. We hereby attest that the information contained within the report has been reviewed for accuracy and checked against the quality control requirements for each method.

What do our customers think?

96 customer reviews
4.83 out of 5 (based on 96 ratings)

All reviews about Blue Widow:

  1. Blue Widow!

    5 out of 5
    This Blue Widow is an amazing cross of 2 of the most well known strains in history, once the seed sprouts it’s determined to reach for the sun rays, bask in glory as she is a very prolific green monster of a plant when used to manifold the buds need support and drop the temp in the room for her true colors to shine
  2. Great genetics

    5 out of 5
    Wow, what a plant. Great taste and great resistance! Love this dinagirl!
  3. Wow!

    5 out of 5
    These seeds are so vigorous and so beautiful when they begin to flower. Nice cerebral buzz to couch lock
  4. Dinafem rocks

    5 out of 5
    Dinafem thanks for having great stable genetics and for sponsoring the AFN grow battles! I can't wait to contend with some of your gear!
  5. Simply AMAZING

    CheckmarkA "verified" checkmark Verified purchase
    5 out of 5
    Besides looking gorgeous, the taste and effects belong to another dimension. Surely not for the faint hearted. will definitely grow it again!
  6. I love dinafem

    5 out of 5
    Your flower are the best
  7. Great Strain

    5 out of 5
    This strain was great! Responded well to topping and LST. Haven’t had a chance to sample it yet as it’s still curing but if it taste anything like how it smells it should be fantastic. I did have a few tops that had to be removed due to bud rot near the end of flowering. All in all it was a pleasant plant to grow.
  8. The Blue Widow Dream

    5 out of 5
    I just had to update this photo of the Blue Widow plant,smells awesome easy to grow turns purple as it comes closer to harvest. Love this plant can't go wrong . Thank you Dinafem for producing such a beautiful plant.
  9. Blue W OUtdoors

    5 out of 5
    Awesome plant to grow and smoke
  10. Head growner

    5 out of 5
    Been using dinefem seeds both inside and out and have had great results both in germination and end product
  11. Stretching Widow

    5 out of 5
    2 metres tall 2 weeks into flower
  12. Blue Widow blitz

    5 out of 5
    Soaking up the Aussie sun.
  13. Oregon medical grower

    5 out of 5
    Dinafem seeds is a solid breeder with many great strains, Blue Widow is my go to strain for the last twelve years. It’s a great strain for muscle spasms, insomnia and pain. This plant has big fat colas but needs no support while budding, saving time and energy on my part. There are many new seed companies out there, I recommend Dinafem with no reservations. They are not new to the seed game and I have never had a issue with any of their strains. Happy growing.
  14. Strong structure

    5 out of 5
    Love this strain. It’s a strong hearty beautiful looking plant the whole way through it’s cycle. My favourite Dinafem strain that’s reliable and a joy to grow
  15. Question

    5 out of 5

    18/6 for veg and 12/12 for flower right?

    1. 5 out of 5


      Yes, this is the right light scheme!

  16. Mr

    5 out of 5
    Amazing. Very pleased. Tight uniformed and beautiful bud sites. Easy to grow. Hard to supercrop because the stems are so strong from the start. Every strain should have this same structure. Thank you dinefem!!!!
  17. dpg

    5 out of 5
    themore trichomes the better
  18. Very impressive

    5 out of 5
    This plant was amazing! My pheno showed a strong indica dominance. I accidentally broke the main stem when low stress training, which ended up being a benefit because the ramining branches shot up in flowering, and produced some of the longest biggest buds I have harvested. This was one of the smaller plants in the tent but produced the most top quality flower due to its long buds that had minimal fan leaves allowing for the light to ripen all of the colas. The smell was one of my favourites, like berries, resin production was very high, and the smoke tastes great. This is a clear award winner
  19. student

    5 out of 5
    Very healthy and easy strain to grow. Hard to cover smell, my house smelled like blueberry muffins. Taste like gas on the inhale and blueberry on the exhale. You can't go wrong with this choice.
  20. Widow lovers unite!

    5 out of 5
    Blueberry Widow is a cross between Blueberry x White Widow. The bud has a dense green glossy look, covered in THC. A hint of dark blue inside and outside the bud. The smell is filled with sweet blueberry, and fills the whole room in seconds with its aroma. Helps for insomnia, and stress. Recommend bringing a friend if you want to experience a pain free lifestyle!
  21. Good smoke

    5 out of 5
    Ran one seed last year in my veggie garden with wonderful results in the Midwest USA. It finished the first day of October. Great berry aroma and chilled out buzz. I am not running 4 inside and a few outdoor. I haven't put them into flowering yet but they are very uniform plants so far . I expect great results. Recommended strain.
  22. Growing indoors.

    5 out of 5
    My question is can you grow blue widow indoors under an HPS light or are they outdoor only?... Because i want to try this strain out... Also, Is a 250w LED good for just one plant?...
    1. 5 out of 5
      Hi, you can grow this strain in indoor an outdoor too, there's no problem with her because she shows a good resistance for the mold and the plagues. Kindest regards
  23. a keeper

    4 out of 5
    beautiful plant, smells like blueberry hash. nice all day smoke. mine Loves supercropping. i've gotten some monster buds off of this plant using this method. super fast finish for me as well. last year i grabbed a few that i had outdoor a lil early and made the best concentrate that i have yet to enjoy..and Lots of it. great all around plant for my garden.
  24. widow maker

    5 out of 5
    Fat sticky nugs with a pungent blueberry aroma.This strains deffinately staying in my mix!, Along side it's cousin White Widow ;)Excelent!
  25. stinky rocks:)

    5 out of 5
    beautiful hardy plant.excellent smell yield stone!:)
  26. three buds three oz

    5 out of 5
    I had three plants of this and each gave me a 1oz colas once I was done drying. the nugs are large and dense I had nugs that weigh 3.5
Write your opinion

Read customer reviews about Blue Widow in other languages: