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Black Widow Feminized Seeds

Black Widow Feminized Seeds

  • checkmark40% indica 60% sativa
  • checkmarkHigh THC levels up to 28%
  • checkmarkFast flowering for quick results
  • checkmarkPerfect for relaxation
  • checkmarkFeminized seeds for guaranteed bud
More product info
From $89
Pack Quantity
5 $89
10 $119
20 $189 Best buy

Your seeds usually arrive within two weekdays but they can take up to a week to arrive. We guarantee safe delivery of your order. Contact us if you have shipping issues.


We handpick premium quality seeds, but they're still a natural product. Follow our germination instructions and your seeds will sprout in no time. Contact us to replace any rogue duds.


We offer free shipping to all US states and never reference marijuana on the packaging or receipts.

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Shipping Info

We ship to all USA states for FREE. Usually seeds arrive within a week.

Trouble with the mail? We will happily replace your seeds. See FAQ

Shop With Confidence

Robert Bergman and the ILGM team gladly share 25 years of experience!

Choosing Seeds

Feminized seeds flower and grow weed when they receive less than 12 hours of light per day. Harvest outdoors in fall, or indoors after 15-20 weeks. Professional growers use these.

Autoflower seeds grow small, easy-growing plants that you can harvest in 10-14 weeks. Great for new growers, small spaces, and multiple harvests per season!

How To Germinate

Germination is guaranteed when you soak the seeds in water up to 72 hours in darkness. When it shows a tail, put it in loose soil with fertilizer. Keep it light and damp and a seedling will appear!

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The Best Deals

Mix Packs are seed variety packs that come with discounts up to 50%. Every strain we offer is also available in a Mix Pack! See All Mix Packs

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Black Widow Feminized Seeds

  • 40% indica 60% sativa
  • High THC levels up to 28%
  • Fast flowering for quick results
  • Perfect for relaxation
  • Feminized seeds for guaranteed bud

The name 'Black Widow' has been used many times throughout history to describe famous people. It has been used to describe everyone from sports legends to superheroes and husband killers. But, when it comes to the Cannabis community, Black Widow seeds refers to a hybrid as powerful as the deadly, venomous spider after which it was named.

Plant type 40% indica 60% sativa
THC Up to 28%
CBD Insignificant amounts
Difficulty Easy
Climate Indoors | Steppe | Mediterranean | Continental | Mold Resistant
Plant size Average
Vegetative stage 4 to 8 weeks
Flowering time 8 to 10 weeks
Yields 11 to 16 oz per plant
Taste and Smell Berry | Earthy | Woody
Effects Relaxed
Terpenes Beta-Pinene | D-Limonene | Terpinolene | Ocimene | Caryophyllene

Even with such a deadly name, this hybrid weed strain is a favorite among many savvy smokers. Originally known by an entirely different name, it is incredibly potent. Its euphoria is guaranteed to transform your cranky mood and leave you feeling jolly. Prepare for the emotional boost and cerebral high delivered by the black widow strain.

Black widow is a very potent strain of Cannabis with between 15% to 28% THC contents. It comes with some effective medicinal properties while offering a decent level of CBD.

Black Widow Strain Origin

The Black Widow marijuana strain is acclaimed to have been developed by Shantibaba. He was once a co-owner of Green House Seeds (GHS). When he left the company to establish Mr. Nice Seeds, the strain was known as White Widow.

Shantibaba took the strain with him and created a new Cannabis strain using the original Brazilian sativa and the South Indian indica-dominant hybrid. But, because GHS was still selling their seeds using the name White Widow, Shantibaba renamed his strain Black Widow. He wanted to distinguish his unique Cannabis strain from his competitors'.

Since Mr. Nice Seeds has the proprietary genetic properties of Black Widow, the strain is now believed by many breeders as the White Widow strain in seed form. To this end, both avid users and marijuana growers love this Cannabis strain.

Growing Black Widow Feminized Seeds

These are feminized Cannabis seeds. Female plants, contrary to male plants, are the ones that actually produce weed. They start flowering when they receive less light per day, i.e. in the fall or when you manipulate the light cycle indoors.

Growing this strain is very easy, and can be done with the right knowledge and skills. All you need is to start with high-quality, black widow seeds.

We also advise reading our germination instructions for guaranteed success sprouting your seeds.

Black Widow Plants and Preferred Climate

All amateur Cannabis growers will enjoy cultivating Black Widow because of its resistance to pests, molds, and mildew. Significant rainfall can have a negative impact on its yield. So, grow this strain indoors or in a greenhouse.

Feeding Black Widow

Visit our nutrient section to get the right plant food for every growth stage.

We recommend giving your plants:

Flowering and Yield

Patience is required to grow Black Widow because this is not a fast-growing strain. It begins to flower within 70 to 90 days, depending on the phenotype. There are however two types of known phenotypes for the Black Widow. There is a short and fast variety, and there is a tall and slow option. The buds of this strain are purple-colored and can look almost black. Green-to-purple buds of this plant look like licorice covered in frost, with orange-colored hairs.

You can expect the plant to flower and create buds within 8 to 10 weeks if cultivated indoors. Look forward to harvesting between 12 to 16 ounces of usable Cannabis per plant when growing indoors. Many growers harvest about 14 oz of usable Black Widow Cannabis per plant. They're also the perfect size for growing indoors, as the plant only grows to be about 3 feet tall.

Prefer to grow your marijuana outdoors? Expect yields of 11 to 14 ounces of usable marijuana per plant when performing outdoor cultivation of Black Widow. Outdoors, plants can grow up to 6 feet in height.

Experiencing The Black Widow Strain

Marijuana dispensaries and long-term users recommend that Black Widow be used in the evenings. This is because it makes most users feel relaxed and sleepy. It provides a mild body high effect that can make you desire more of your bed or couch.

The effects of Black Widow are largely euphoric. It is possible to induce slight headaches and dizziness in new or occasional users. Some other users might also experience dry mouth and eyes. However, the effects are not always harmful, as they may also feel some form of mental creativity.

Because this strain contains up to 28% THC, its euphoria can be quite powerful, especially for new smokers. With a THC concentration that high, it's no surprise that happiness is the result.

The first-time smoker should be aware that Black Widow could produce paranoia in users. There is the initial feeling of feeling high and light-headed, but it could swivel around to turn to unpleasant feelings in first-time users. So, if you're a newbie, use this strain with caution.

Black Widow Taste and Smell

The Black Widow strain delivers some potent euphoric effects. It comes with a strong, skunky, sweet aroma with a piney, fruity overlay. Its fragrance is almost as powerful as the punch it delivers.

And, the flavors of Black Widow are just as impressive. It tastes much like it smells, with a nutty aftertaste. Enjoy the sweet, earthy flavors of wild betters while smoking this marijuana. You'll find both the aroma and taste of this Cannabis strain irresistible.

Uses for Black Widow

Although the Black Widow strain is often used as recreational marijuana, it also contains a lot of medicinal properties. It can be used to relax and de-stress, as well as to get to sleep.

Black Widow users report feeling more focused. This helps combat fatigue, making it easy to function better during the day. A word of caution - this only occurs when you use this marijuana in small amounts.

This Cannabis strain delivers a cerebral high. It helps to uplift mood, sending its users to a level of elation like no other. It helps manage stress, depression, PTSD, bipolar disorder, and various anxiety disorders.

Because of its potent indica properties, Black Widow helps medical marijuana patients manage pain. This strain of Cannabis delivers a sedative-like effect, making it a powerful sleep aid for those suffering from insomnia.

Buy Black Widow Seeds

Black Widow feminized seeds are available for purchase in packs of 5, 10 or 20 seeds.

You can also save when buying Black Widow as part of our heavily discounted combination packs. It's featured in:

ILGM Guarantees

When you buy Black Widow feminized seeds we offer:

  • Discreet shipping and handling
  • Free shipping to all U.S. states
  • Guaranteed arrival of your order
  • Guaranteed germination of your seeds

Find more information in our support section.

Happy growing!

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