Cannabis Cannabis Strain Reviews

Black Widow Cannabis (Weed) Strain Review

The Black Widow strain, also known as “White Widow,” is a legendary hybrid cannabis strain popular for its balanced genetics, remarkable potency, and widespread popularity within the cannabis community. Originating in the Netherlands during the 1990s, this strain is the result of a cross between a Brazilian Sativa landrace and a South Indian Indica.

The exact balance of Sativa and Indica genetics varies among different phenotypes, but it is generally considered a 60% Indica and 40% Sativa hybrid. With the strain’s dense trichome-covered buds and contrasting dark green leaves, it’s easily recognizable and admired by both experienced and novice cannabis enthusiasts. This strain’s reputation for delivering an uplifting cerebral high followed by a deeply relaxing body buzz has made it a staple in dispensaries worldwide. Additionally, its unique combination of terpenes creates a distinct aroma and flavor profile that enhances the overall experience.

Black Widow OG StrainFeatures/Details
OriginThe Netherlands, cross between Brazilian Sativa and South Indian Indica
Also known asN/A
EffectsElevated Mood, Euphoria, Focus, Creativity
Leaf ShapeLong, narrow, Sativa-like leaves
Medical ApplicationPain Relief, Depression, Appetite Stimulation, Stress Relief
FlavorEarthy, Woody, Pungent, Herbal
AromaWoody, Herbal, Spicy, Floral
AppearanceDense, frosty buds with white trichomes and a vibrant green hue
Flowering PeriodTypically ranges from 8 to 9 weeks
CannabinoidTHC levels of 15% to 25%; low CBD levels (often below 1%)
TerpenesMyrcene, Limonene, Pinene and Caryophyllene.

Black Widow Effects and Potency

Black Widow is a potent strain with an average THC content that typically falls within the range of 18% to 25%, making it a relatively strong strain. This high THC content contributes to a powerful and well-rounded experience for consumers. Despite its sativa dominance, Black Widow offers a balanced blend of effects, appealing to both recreational and medicinal users.

The effects of Black Widow are relatively fast-acting, typically emerging within minutes of consumption, whether smoked or vaporized. Users often feel an initial cerebral rush, characterized by heightened sensory perception and a surge of creativity. This onset phase is marked by profound euphoria, where users may feel exceptionally happy and inspired. As the high continues, a soothing physical relaxation settles in, alleviating tension and stress.

Despite this relaxation, users often retain mental clarity, and some experience enhanced focus and creativity. This balanced interplay between cerebral and physical effects is a hallmark of Black Widow and makes it a versatile strain. Black Widow’s initial impact is a sense of intense euphoria. Users frequently describe feeling uplifted, cheerful, and even elated.

This mood-enhancing quality is one reason why it’s popular among those seeking an emotional boost. Although Black Widow has strong Sativa genetics, it also delivers notable body relaxation. This relaxing effect can help alleviate physical tension and discomfort, making it suitable for users seeking relief from muscle soreness or stress-related bodily tension.

Potential Positive Effects of Black Widow

  • Elevated Mood: Black Widow is widely appreciated for its mood-lifting properties. It has the potential to improve moods and induce a profound sense of happiness.
  • Pain Relief: Its Indica genetics contribute to its potential for pain relief and muscle relaxation. Users dealing with chronic pain conditions or physical discomfort may find relief with Black Widow.
  • Increased Energy: While relaxing, Black Widow also offers a burst of energy and mental clarity. This dual-action effect makes it a versatile strain for various activities.

Potential Side Effects of Black Widow

As with many cannabis strains, dry mouth (cottonmouth) is a common side effect. Staying well hydrated can help alleviate this discomfort. Dry eyes are another typical side effect, but moisturizing eye drops can provide relief. In some cases, especially with high doses or in individuals sensitive to THC, Black Widow may induce anxiety or paranoia.

It’s essential for users, particularly those new to cannabis or with low THC tolerance, to consume this strain in moderation to avoid potential adverse reactions. Individual experiences with cannabis can vary, so the effects and side effects may differ from person to person. Beginners should approach Black Widow cautiously and gradually increase their dosage to assess their tolerance.

Medical Applications 

Black Widow has potent analgesic properties that could provide relief for individuals dealing with chronic pain conditions such as arthritis, back pain, or migraines. Its uplifting and euphoric effects may help reduce stress and alleviate symptoms of anxiety in some users. The mood-enhancing properties of this strain might be beneficial for individuals experiencing symptoms of depression.

Black Widow’s relaxing effects can potentially aid those struggling with insomnia by promoting better sleep. Some users report increased appetite after using this strain, making it potentially useful for individuals dealing with appetite loss due to medical treatments or conditions. Although not as well-studied as some other strains, Black Widow’s reported anti-nausea properties may benefit individuals undergoing chemotherapy or dealing with gastrointestinal issues.


Users often detect strong earthy notes reminiscent of damp soil or fresh wood, which contribute to its overall natural and organic taste. Complementing the earthiness, Black Widow carries woody undertones that can remind some consumers of forests or pine trees.

A hint of citrus adds a refreshing and slightly tangy note to the strain’s taste, which can balance out the earthier elements. On occasion, a subtle spicy kick might be present, offering a pleasant contrast to the other flavors. The taste of Black Widow generally aligns with its aromatic profile, combining earthy, woody, and citrusy notes.


The strain’s aroma is rich in earthy notes, akin to the scent of soil or damp wood. This earthiness forms the foundation of Black Widow’s aromatic profile. Overlaying the earthy base, you may detect a burst of citrusy freshness. This citrus scent can be reminiscent of lemon or lime, adding a zesty and invigorating element. There’s often a subtle hint of pine in the mix, evoking the fragrance of coniferous forests. This piney undertone complements the earthiness and citrus notes.

On occasion, a trace of spiciness might be present, contributing a mild, peppery aroma to the overall bouquet. In comparison to other strains, Black Widow’s aroma sets it apart with its unique combination of earthiness, citrus, pine, and occasional spice. It creates an aromatic profile that many users find intriguing and refreshing, making it a sought-after choice in the cannabis community.


Black Widow buds typically feature a vibrant green hue. The color can vary from a bright, almost neon green to a deeper forest green, depending on factors like growing conditions and genetics. The texture of Black Widow buds is dense and compact. These nugs tend to be tightly packed with trichomes, which are the resin glands that contain cannabinoids and terpenes.

This gives them a slightly sticky and crystalline texture. In comparison to similar strains, Black Widow’s appearance is somewhat reminiscent of other Indica-dominant varieties due to its dense and resinous nature. However, its distinctive green color and trichome coverage make it easily distinguishable.

Buy Black Widow Seeds Online

Purchasing Black Widow seeds online is possible through various seed banks and cannabis retailers. Numerous online seed banks offer Black Widow seeds. These seed banks often have a wide selection of cannabis strains, including popular classics like Black Widow. A well-known seed bank is Seedsman. In regions where cannabis cultivation is legal, you may also find Black Widow seeds at local cannabis dispensaries or specialty gardening stores.

However, availability can vary widely depending on local laws and regulations. The price of Black Widow seeds can vary based on factors like the seed bank, the number of seeds in a pack, and the quality of the genetics. On average, a pack of Black Widow seeds with 5–10 seeds can range from $40 to $80 or more. High-quality, feminized seeds may be at the higher end of this price range.

Growing Information 

Black Widow has a relatively short flowering time, typically around 8 to 9 weeks when grown indoors. Outdoor growers can expect to harvest their crops in late September or early October. The plants tend to be moderately tall, making them suitable for indoor cultivation. Indoor plants can reach heights of 2 to 3 feet (60 to 90 cm), while outdoor plants may grow slightly taller, up to 4 feet (120 cm) or more.

Black widow can be successfully grown both indoors and outdoors. However, it’s important to maintain a controlled environment for this strain, especially when cultivated outdoors, as it is sensitive to temperature and humidity fluctuations. Indoor growing provides more control over these factors. It thrives in a temperate, Mediterranean-like climate and prefers temperatures between 70 and 80°F (21 and 27°C) during the day and slightly cooler nights.

Humidity levels should be maintained at around 40–50% during the vegetative stage and lowered to 30–40% during the flowering stage. Black Widow has a pungent aroma during the flowering stage. Adequate odor control measures, such as carbon filters, may be necessary, especially when growing indoors.

This strain can benefit from pruning and training techniques like topping and LST (low-stress training) to manage its height and encourage lateral growth. Like all cannabis plants, Black Widow is susceptible to pests and diseases. Regular inspections and preventive measures are essential to ensuring a healthy crop.

Tips for Successful Growth

  • Quality Genetics: Start with high-quality Black Widow seeds from a reputable source to ensure strong and healthy plants.
  • Lighting: Provide sufficient light, whether using high-intensity discharge (HID) lamps, LED grow lights, or natural sunlight, to support robust growth and bud development.
  • Nutrient Management: Use a balanced nutrient regimen during the vegetative and flowering stages, adjusting nutrient levels as needed based on plant health and growth.
  • pH and EC Levels: Monitor and maintain appropriate pH and EC (electrical conductivity) levels in your growing medium to prevent nutrient imbalances.
  • Training: Employ training techniques to control plant height and maximize light penetration for improved yields.
  • Harvesting: Harvest your Black Widow plants at the right time by observing trichome development and using a magnifying tool. Harvesting too early or too late can affect the potency and flavor of the buds.
  • Drying and Curing: Properly dry and cure your harvested buds to preserve their flavor, aroma, and potency.

By following these guidelines and paying close attention to your plants’ needs, you can cultivate healthy Black Widow cannabis plants and enjoy a satisfying harvest of potent, resinous buds.

Cannabinoids and Terpene Profile

Black Widow typically contains a moderate to high THC content, often ranging from 15% to 25% or more. This psychoactive cannabinoid is responsible for the strain’s euphoric and uplifting effects. While Black Widow isn’t particularly high in CBD, it may contain trace amounts. CBD is known for its potential anti-inflammatory and calming effects. Myrcene is commonly found in cannabis strains and has potential sedative and relaxing properties.

It may contribute to Black Widow’s calming effects. Other terpenes found include caryophyllene, limonene, and pinene. Limonene contributes a citrusy aroma and is associated with uplifting and mood-enhancing effects. It may add a touch of euphoria to Black Widow’s profile. As the name suggests, pinene has a pine-like aroma and has the potential to improve focus and alertness. It might balance some of the strain’s relaxing effects.

Frequently Asked Questions

Question: Is Black Widow suitable for beginners?
Answer: Black Widow’s potency and balanced effects make it suitable for both novice and experienced users.

Question: What’s the typical flowering time for Black Widow when grown indoors?
Answer: Indoors, Black Widow usually flowers within about 8 to 9 weeks.

Question: Does Black Widow have a strong aroma?
Answer: Yes, Black Widow often has a pungent and earthy aroma, so consider odor control if growing indoors.


Black Widow is a well-balanced cannabis strain with notable potency and a range of potential effects. It’s a popular choice among users seeking a mix of relaxation and euphoria. With average THC levels, it’s suitable for both newcomers and seasoned cannabis enthusiasts. Overall, Black Widow is a versatile strain that can be enjoyed by a variety of users. Its balanced effects may be particularly appealing to those looking for relaxation without overwhelming sedation.

However, people prone to anxiety should exercise caution, especially with higher doses. If you’re in search of a strain that combines a pleasant body high with a touch of mental clarity, Black Widow is worth trying. Its potential medical applications, from stress relief to pain management, make it a versatile option for those seeking therapeutic benefits.

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