Put two legendary, award-winning strains together, add a little ruderalis to the mix, and you get Jack Widow autoflowering cannabis seeds.

With Jack Widow, sometimes also referred to as Big Jack Widow, you get the best of two classics: White Widow and Jack Herer. This sativa heavy marijuana strain is easy to grow, even for growers that are just starting out. She will leave with a smile on your face, when you are growing your own cannabis plant.

When you have harvesting your own Jack Widow weed, you can expect a strong euphoric high, that will also boost your energy, while leaving your body relaxed as well. Enjoy not only her high THC content, but also the sweet, earthy taste of her buds.

Are you curious what else this strain has to offer? Then keep reading and discover Jack Widow auto! If you are a grower with more experience and looking for an even bigger yield? Go check out our Jack Widow feminized seeds as well!

Why you should buy Jack Widow autoflower seeds:

  • Substantial yields

  • Short time to harvest

  • Easy to grow

  • High THC levels

Growing Jack Widow autoflower (indoors and outdoors)

Jack Widow autoflowering feminized seeds are able to grow indoors, outdoors, or in a greenhouse; all due to her partial ruderalis genes.

Jack Widow autoflower seeds offer many advantages confirmed by our regular customers. First, the seeds are feminized, which means that this Jack Widow strain is female and will not develop male plants. In addition, the autoflower genes ensure that the plant will flower automatically, which significantly facilitates the growing process. 

Jack Widow thrives in temperate climates, and is easy to grow, even for beginners. This is partly due to her high mold resistance.

The Auto Jack Widow is a compact plant with thick green leaves covered with a brilliant layer of whitish resin and buds with lots of orange trichomes. The smells can be pungent during flowering, so we recommend using a good quality filter if you are growing indoors.

Flowering time

The average flowering time for Jack Widow autoflowering marijuana seeds is between 10 and 11 weeks. Due to her autoflower genetics, you can even harvest twice in the grow season, if you plan it right.

Plant height

Jack Widow Autoflower seeds can grow into a cannabis plant between 90 and 150 cm, when grown outdoors.

This marijuana strain will grow between 70 and 110 cm tall when grown indoors.

Jack Widow Autoflower yield

This stable hybrid produces excellent harvests of large buds. Expect up to 600 grams per square meter when you cultivate her inside.

The yield outdoors can reach up to 200 grams per plant, making it an effective plant for indoor and outdoor growers in the Northern and Southern Hemispheres.

Effects of the Jack Widow strain

Auto Jack Widow offers a pleasant high, leaving you blissfully unaware of the passing of time. The sativa properties of Jack Widow will uplift you, with a boost of euphoric energy hitting you after the first few hits. Perfect for a night out with friends.

Her indica genetics are less prevalent, yet you will feel it when a feeling of relaxation will flow through your muscles.

Due to the potency of her high, this cannabis strain will appeal to old-school users and new smokers alike. 

Side Effects

Although unusual, you may experience dry mouth, dry eyes, and dizziness as side effects.

Smell and taste

The aroma of Jack Widow Auto is subtle and infused with sweet undertones and scents of fresh forest wood. However, there is also an underlying, herbal dank earthiness that comes through when you crumble it between your fingers. 


The Jack Widow Autoflowering strain originated from a cross between Jack Herer x White Widow, two legendary cannabis names, and a Ruderalis to create an autoflowering hybrid. The combination of these classic cannabis strains, from which this plant emerged, produces a fantastic high that never fails to take away your worries and stress.

Jack Widow Auto inherited the best of both strains, as you would expect. The autoflowering element comes from Ruderalis, a genuinely stunning cannabis strain capable of establishing itself beyond the Arctic Circle. This is all thanks to the automatic flowering cycle that has evolved naturally over millions of years of evolution. These genes give Jack Widow Auto short, consistent growth and make her fast flowering.

White Widow, also a legendary strain, is famous for her exotic power. She features a sugary crystal layer with intense trichomes that cover the buds. This strain was chosen primarily for her power, since she flowers quickly and produces equally abundant yields.

White Widow won many awards, including the prestigious Cannabis Cup, just like the other parent strain, Jack Herer.

The best Jack Widow Autoflower seeds for sale at Weedseedsexpress

Weedseedsexpress is your one-stop shop for all your high quality cannabis seeds. Why? Not only do we have a huge selection of autoflower and feminized seeds, we also offer a delivery and germination guarantee, an information center full of informative blogs, and a stellar customer service.

One of our high quality strains is the Jack Widow Autoflower. Bringing together the best features of Jack Herer, White Widow, and the latest generation of autoflowers in one beautiful plant that flowers automatically. 

Are you looking for a strain that will boost your energy and is easy to grow? Buy Jack Widow Autoflowering seeds today and start growing your own! Because homegrown weed is the best weed.

Read morefold up

Specifications Jack Widow autoflowering feminized seeds

THC level 20%
CBD level 1.5%
Variety 30% Indica / 50% Sativa / 20% ruderalis
Genetics White Widow x Jack Herer x Ruderalis
Max yield indoor 500 to 600 grams/m²
Max yield outdoor 120 to 200 grams/plant
Height indoor 70 to 110 cm
Height outdoor 90 to 150 cm
Flowering time 70 to 77 days
Fungal Resistance High
Growersprofile Beginner
Cultivation Indoor, Outdoor, Greenhouse
Climate Temperate
Flavors Earthy, Herbal, Sweet, Woody
Effects Relaxed, Energetic, Happy, Uplifting, Euphoric
SOG suitable yes
SCROG suitable yes

Jack Widow autoflowering feminized strain review

The latest reviews on Jack Widow autoflowering feminized seeds, do you have experience with this strain? Share your experience with other customers and write a review about the Jack Widow autoflowering feminized strain.

4.5 / 5 stars out of 17 reviews


Jared Garnett (Verified customer) 2022-01-22

Big Jack Widow is a very low maintenance, easy to grow strain with decent THC levels. Definitely a beginners dream strain, recommend highly for the new grower. No hassle from start to finish.

Vincent (Weedseedsexpress) replied on 2022-01-24

Hi Jared, Thanks for your review! Cheers, Vincent

SandyJ (Verified customer) 2020-02-01

Y'all provide some great seeds. Had a great time growing these plants. Thank ya for the service and take care.

Harry (Verified customer) 2019-10-14

I'm very curious how this strain works out. White Widow and Jack Widow are both really nice separately, so cant wait to smoke their baby! Shipping had a little delay but all cam in well and was super stealth. So far I had no issues germinating them. So far so good 😄😄

Derrick Erving (Verified customer) 2019-08-22

Would have given 6 stars if I could because 6 out of 6 germinated and thanks David for all your kind support. It's just a blessing to see that there actually do exist customer care teams that actually care about their customers so I reward you with a new customer for life and i will definitly share your website with anyone. Take care and talk soon

Mark (Verified customer) 2019-07-22

Just finished an outdoor batch of these. WOW is what I say. Fruity aroma during flowering, but touch these beauties with your hands and out comes a big time sour/ sweet smell. The only time I’ve ever asked another man to smell my fingers was during trimming these LOL. Thanks for a great grow weedseedexpress!

Hamiltongeorge (Verified customer) 2019-06-08

My seeds arrived today after the first package was intercept (F*stupid government) but you guys have made up for it so i'm very satisfied now and will return for more

Edgar Winchester (Verified customer) 2019-05-06

Although i'm a first timer i have a very successful grow with these seeds so i'm really really satisfied. Growing was easy especially because you don't need much knowledge about growing so if you are beginner this is a great choice. Thats for sure

E. Moore (Verified customer) 2019-03-07

Perhaps not so exciting for advanced growers but a VERY GREAT strain for first time growers. Reliable and good yields. No issues with mold or whatsoever.

Bolanos (Verified customer) 2019-02-18

Growing a cannabis plant seemed very difficult to me. Yet that wasn't the case. On David's recommendation I have chosen big jack widow and I am very happy with the final result. The weed tastes fantastic and that I have been able to grow my own weed myself is just amazing. Will definitely order some more seeds soon.

Shed Vega (Verified customer) 2019-01-24

As a beginner and from my personal experience I can say that this is a very suitable choice for those who are looking for ease. The plant requires little maintenance and grows steadily. During flowering, beautiful buds emerge with a lot of THC crystals. I was therefore tempted to harvest earlier, but fortunately I gave the plant its time to ripen. Got some pretty good yields now and the weed taste lovely!!

Colin Stephenson (Verified customer) 2018-12-01

BJW is a great and easy to grow strain for beginners. Didn't had any hard times growing this one. Yields are oke.

N. Lisk (Verified customer) 2018-08-19

I will never choose normal autoflowers anymore. These big auto's are muchhhh better.

Delossantos (Verified customer) 2018-03-24

Very easy to grow and the weed provided a good sativa high which in my opinion is not too powerful. I can not say that this is my favorite, but its a nice weed. Price quality ratio is good

Sergio Sturdivant (Verified customer) 2018-02-27

As a novice grower this species is recommended to me by friends. I do not regret it. Although the flowering time is a bit long, Big Jack is an easy to grow strain and produces good harvests. Therefore I recommend this strain to novice growers.

Vape420 (Verified customer) 2018-01-08

A great cross between Jack Herer x White Widow. A dispensary nearby calls it Apple Jack, I think it is there own branding or something like that. It is a great daytime sativa dominant strain without the sativa negs, like anxiety or paranoia. The flowers are largish but with closely packed sativa buds. A light-dark mottled green bud with light brown hairs. I would classify this as a niche strain, similar in effect to strains like Agent Orange. Growing is pretty easy, and when it comes to the quality of this seed, you can be sure you will get the best genetics at the Weedseedsexpress if you ask me. Thanks fellows!

Harold Hernandez (Verified customer) 2017-10-05

I have grown many autoflowers now, but the Big Jack Widow from Weedseedsexpress is definitly one of my favorites. It's a really tough mold resistant strain with good yields. What i really like about this strain is the high THC content. I made my mind go wild. Definitely recommended.

Mildred Briggs (Verified customer) 2017-02-26

Big Jack is one of those good yielding autoflowers without to much maintenance I was looking for..

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Jack Widow autoflowering feminized seeds


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