Hybrid60% Indica / 40% Sativa12–20% THC

Blue Widow

Also known as: Berry White, White Berry, Blue Venom, Bluedow

Breeder: Dinafem Seeds

Blue Widow is a well-established hybrid that fuses DJ Short's Blueberry (late 1970s) with the Dutch-bred White Widow (early 1990s). The cross was popularized by European breeders — most notably Dinafem Seeds — in the late 2000s, targeting Blueberry's anthocyanin-driven color expression and berry aromatics alongside White Widow's legendary trichome density and structural vigor. The result is a resin-heavy, fruit-forward cultivar that finishes fast and performs reliably across skill levels. It remains a staple on Amsterdam coffeeshop menus and in North American dispensaries. Dinafem Seeds created Blue Widow to capture the best qualities of two cannabis heavyweights — the rich, complex terpene profile and color expression of DJ Short's Blueberry with the resin production, fast flowering, and sedative power of White Widow. The resulting F1 hybrid is remarkably stable, producing uniform crops that simplify commercial and home cultivation alike. THC ranges from 12-16% with medium CBD — lower than many modern strains but delivering a powerful psychedelic-leaning effect that belies the modest percentages. The terpene profile combines intense sweet-and-sour notes from White Widow with forest berry aromatics from Blueberry, creating a fruity chewing gum character that is instantly recognizable. Blue Widow is available exclusively as feminized seeds and performs well across all common growing methods (soil, hydro, coco).

Lineage

Blueberry x White Widow

THC Range

12–20%

Flower Time

7-8 weeks

Difficulty

Easy to Moderate

Lineage & Genetics

Cross: Blueberry x White Widow

Parent strains in encyclopedia:Blueberry→White Widow→

Blueberry (DJ Short, late 1970s): indica-dominant hybrid descended from Thai sativa, Afghani indica, and Purple Thai lines; 2000 Cannabis Cup Best Indica winner; contributes berry terpenes, color expression, and relaxed physical effects. White Widow (Green House Seeds / Shantibaba, early 1990s): Brazilian sativa landrace crossed with South Indian indica; 1995 High Times Cannabis Cup winner; contributes extreme resin production, structural vigor, and a cerebral, euphoric edge.

Lineage Dispute

No dispute on parentage. Dinafem lists the ratio as 50/50, while most other breeders and databases report 60/40 indica-dominant. Regional naming varies: 'Berry White' and 'White Berry' are common in Southern California and Oregon; 'Blue Widow' dominates in Colorado, the Midwest, and Canada; 'Blue Venom' is used in parts of Europe.

Terpene Profile

DOMINANT

Myrcene — Earthy, herbal, musky foundation

SECONDARY

Pinene — Fresh pine, forest-like brightness

SECONDARY

Caryophyllene — Spicy, peppery warmth

SECONDARY

Limonene — Bright citrus, lemon zest

SECONDARY

Terpinolene — Floral, piney, slightly herbaceous

Aroma: Fresh blueberry and forest berry on the top notes over a damp, earthy forest-floor base. The Dinafem cut is described as smelling like fruity chewing gum. Exhale carries a mild woodsy, herbal, slightly spicy finish from the White Widow side. Grower reviews note a distinct 'blueberry hash' smell during late flower.

Flavor: Sweet berry and blueberry dominate the inhale, followed by earthy, piney undertones and a subtle sour-citrus note. The exhale finishes with a hash-like, slightly peppery spice. Dinafem's lab profile shows total terpene content of ~2.17%, contributing to a rich and layered palate.

Effects & Experience

Onset: Moderate speed. Begins with a calm, clear-headed cerebral lift within 5–10 minutes before the myrcene-driven body relaxation settles in.

Balanced euphoria with gentle mental stimulation and progressive full-body relaxation. Users report feeling happy, focused, and mellow without heavy couch-lock. The White Widow parentage provides a 'psychedelic head rush' quality that keeps the experience from becoming purely sedative. Higher-THC phenotypes can lean more indica-heavy.

Duration: Medium to long. The cerebral phase typically lasts 1–2 hours, with body relaxation extending beyond that.

Commonly Reported Uses

Stress reliefMild to moderate pain managementAnxietyDepressionFatigueAppetite stimulationNauseaInsomnia (higher doses)

Grower's Notes

Flower

7-8 weeks

Indoor Yield

525 g/m²

Outdoor Yield

1100 g/plant

Difficulty

Easy to Moderate

Height / Stretch

Medium (~1.5m indoor)

Environment

Indoor, Outdoor

Blue Widow by Dinafem Seeds is a beautifully balanced 50/50 indica-sativa hybrid that combines the legendary resin production and sedative potency of White Widow with the fruity sweetness, color expression, and vigor of Blueberry. The result is a stable, homogeneous strain that produces uniform crops of dense, trichome-drenched buds with an irresistible forest berry and fruit chewing gum aroma — and does it in a remarkably fast flowering window.

Growth Structure and Training

One of Blue Widow's most attractive qualities for growers is its consistency. Plants grow in unison with lush, vigorous development, producing a homogeneous canopy that simplifies training and light management. The structure is medium-height, reaching approximately 1.5 meters indoors, making it excellent for SOG-style grows. Outdoors, the plants can stretch to 3 meters when given full-season growth, driven by the Blueberry mother's upward energy. The internodal distance is slightly larger than pure White Widow, and plants can double in size as flowering begins — plan your canopy height accordingly and consider initiating SCROG once the flowering stretch begins.

Flowering Time and Harvest

The flowering period is exceptionally short at just 50-55 days indoors — one of the fastest among balanced hybrids producing this level of quality. This rapid turnaround makes Blue Widow particularly attractive for commercial operations running multiple cycles per year. Despite the speed, yields are generous: indoor harvests reach 525 g/m2, while outdoor plants in favorable conditions can produce up to 1100 g per plant — truly exceptional numbers. The high calyx-to-leaf ratio means less time trimming and more usable flower per plant, another significant production advantage.

Environment and Climate

Environmental management is straightforward compared to many modern hybrids. Blue Widow is a vigorous grower that tolerates a range of conditions, making it accessible to growers of all experience levels. Water pH should be maintained at 5.8-6.0, with max EC of 1.4 in veg and 1.8 in flower. The strain produces best under LED lighting. To unlock the stunning purple and blue hues that are Blue Widow's visual signature, lower nighttime temperatures by approximately 10°F relative to daytime temps during the flowering period. In outdoor conditions with naturally cool nights, the color expression happens automatically — leaves and calyxes transition from blue to purple to reddish tones as temperatures drop.

Pest and Disease Resistance

The strain shows excellent mold resistance through most of the flowering cycle, but particular care is recommended during the final two weeks when bud size increases dramatically. At this stage, the colas can become large enough to trap moisture internally, so maintain strong airflow and keep RH below 50%. Blue Widow thrives in continental and Mediterranean climates outdoors, where it develops its full aromatic potential. Outdoor harvest timing is early to mid-October in the Northern Hemisphere. The dried buds deliver fat, purple nuggets totally coated in trichomes with a fruit chewing gum taste and satisfying potency — a testament to White Widow's resin genetics enhanced by Blueberry's flavor contribution.

History & Origin

The Blueberry x White Widow cross was popularized by European seed companies in the late 2000s as breeders began pairing 'dessert-forward' genetics with proven resin producers. Dinafem Seeds is the most widely credited originator, marketing it as an F1 hybrid that combines the best of both parents. The cross has since been offered by numerous breeders worldwide under various names (Berry White, Blue Venom, White Berry), each selecting for slightly different traits. Dinafem's version won international recognition at the 2013 Treating Yourself Expo in Toronto and the 2015 Copa Cannabis in Uruguay.

Awards & Recognition

●1st Prize, Best Outdoor — Copa Cannabis 2015 (Uruguay)
●3rd Prize, Best Indica — Treating Yourself Expo Cannabis Cup 2013 (Toronto, Canada)

Notable Crosses

Strains bred using Blue Widow as a parent:

Blue Mazar— Roor Seeds Amsterdam. Mazar x Blue Widow

Dreamy Widow— Lineage Genetics. Blue Dream x Blue Widow

Hope of Israel— Mount Zion Seed Cooperative. Critical Mass x Blue Widow

Frequently Asked Questions

8 common questions about Blue Widow

What is Blue Widow and what are its genetics?

Blue Widow is a hybrid cannabis strain (60% Indica / 40% Sativa) bred by Dinafem Seeds. It is a cross of Blueberry x White Widow, testing at 12–20% THC. Blue Widow is a well-established hybrid that fuses DJ Short's Blueberry (late 1970s) with the Dutch-bred White Widow (early 1990s). The cross was popularized by European breeders — most notably Dinafem Seeds — in the late 2000s, targeting Blueberry's anthocyanin-driven color expression and berry aromatics alongside White Widow's legendary trichome density and structural vigor.

What does Blue Widow smell and taste like?

Blue Widow's dominant terpenes are Myrcene. The aroma is described as fresh blueberry and forest berry on the top notes over a damp, earthy forest-floor base. the dinafem cut is described as smelling like fruity chewing gum. exhale carries a mild woodsy, herbal, slightly spicy finish from the white widow side. grower reviews note a distinct 'blueberry hash' smell during late flower.. The flavor profile features sweet berry and blueberry dominate the inhale, followed by earthy, piney undertones and a subtle sour-citrus note. the exhale finishes with a hash-like, slightly peppery spice. dinafem's lab profile shows total terpene content of ~2.17%, contributing to a rich and layered palate..

What are the effects of Blue Widow?

Moderate speed. Begins with a calm, clear-headed cerebral lift within 5–10 minutes before the myrcene-driven body relaxation settles in. Balanced euphoria with gentle mental stimulation and progressive full-body relaxation. Users report feeling happy, focused, and mellow without heavy couch-lock. Duration is typically medium to long. the cerebral phase typically lasts 1–2 hours, with body relaxation extending beyond that.. Commonly reported uses include Stress relief, Mild to moderate pain management, Anxiety, Depression.

How hard is Blue Widow to grow?

Blue Widow is rated easy to moderate difficulty. It flowers in 7-8 weeks, reaches medium (~1.5m indoor) in height, and yields 525 g/m² indoors. Best suited for indoor, outdoor environments.

What are the parent strains of Blue Widow?

Blue Widow is a cross of Blueberry and White Widow. Blueberry (DJ Short, late 1970s): indica-dominant hybrid descended from Thai sativa, Afghani indica, and Purple Thai lines; 2000 Cannabis Cup Best Indica winner; contributes berry terpenes, color expression, and relaxed physical effects. White Widow (Green House Seeds / Shantibaba, early 1990s): Brazilian sativa landrace crossed with South Indian indica; 1995 High Times Cannabis Cup winner; contributes extreme resin production, structural vigor, and a cerebral, euphoric edge..

Does Blue Widow turn purple?

Yes. Blue Widow is known to express purple coloration, with reported colors including Deep green, Blue hues, Purple hues, Reddish hues (cool temps), Orange to amber pistils, White trichome frost. Cooler nighttime temperatures during late flowering typically intensify anthocyanin expression.

What strains were bred from Blue Widow?

Blue Widow has been used as a parent in several notable crosses, including Blue Mazar, Dreamy Widow, Hope of Israel. Its genetics contribute to a wide range of modern cultivars.

Has Blue Widow won any cannabis awards?

Yes. Blue Widow has received recognition including 1st Prize, Best Outdoor — Copa Cannabis 2015 (Uruguay); 3rd Prize, Best Indica — Treating Yourself Expo Cannabis Cup 2013 (Toronto, Canada).

Sources & References (23)

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