Blue Kush
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Blue Kush

Sativa-dominantTHC-dominant
Indica 45 %Sativa 55 %

Blue Kush is a cross of Blueberry and OG Kush that Dinafem added to its range in 2006. The plants can turn blue to purple, and the aroma combines berries with diesel.

Research as of 11/01/2026

In spring 2006, Dinafem added a feminized cross of Blueberry and OG Kush to its catalog under the name Blue Kush. According to the breeder, it was meant to combine the potency and flavor of OG Kush with the color and scent of the Blueberry line; a predominantly indica-leaning Blueberry selection was used. There is now also an autoflower version from Dinafem as well as strains of the same name from other breeders, including one with a completely different pedigree.

Genetics and Origin:

Dinafem puts the ratio at 55 % sativa and 45 % indica. Other strain descriptions likewise list Blue Kush as a sativa-leaning hybrid, and one even gives 80 % sativa. In grow reports, however, the plant looks more typical of an indica. A documented offspring is Red Hot And Blue by Jörd Genetics, a cross of Red Hot Cookies and Dinafem's Blue Kush.

Cultivation:

Dinafem describes the plant as medium-tall and fir-tree-shaped. Compared with OG Kush it forms thicker stems and shorter spacing between the nodes, but it stretches noticeably once flowering begins; the breeder considers SCROG and SOG suitable. Depending on temperature, the upper parts turn blue, purple or lavender, while the lower leaves may stay green. According to Dinafem, the buds are compact and resinous.

For indoor flowering the breeder states 60 days, while a 2016 blog post gives 60 to 65 days. Outdoors, harvest takes place in early to mid October. Dinafem states 500 g/m² indoors and 600 to 800 g per plant outdoors at an outdoor height of 1.5 m. Warm, dry locations in a temperate climate or a greenhouse are preferred; according to the breeder, the strain tolerates humidity well, and inexperienced growers are said to manage it as well.

Community Experiences:

The grow reports confirm that it suits beginners, but flowering took longer than stated: 63 to 70 days are documented, and an indoor grow published by Dinafem itself came to 66 to 68 days. Final heights indoors ranged between 70 and 130 cm, and a hydroponic grow in a DWC system produced 130 g. The plant gets by with little fertilizer; growers differ on whether it tolerates fluctuations or quickly reacts with burn.

Reports also differ on sturdiness. Some praise strong side branches, while others describe thin, stretched stems that needed support from the 5th week of flowering. The dried buds are considered hard and dense with a low leaf share, although one report rates the density as slightly below average. Mold did not occur in any of the reports. One grower noted slight hermaphrodite tendencies, another purple leaves well into flowering.

Aroma and Flavor:

Lemon, pine and berries over a Kush-typical, fuel-like base note, plus creamy berry tones: this is how Dinafem characterizes the scent, and for flavor the breeder names earth and hash with a fruity undertone. Growers perceive dark berries and diesel, in part blueberry and lemon, and taste diesel, rose and strawberry. Other strain descriptions add spicy and sweet notes; one of them lists myrcene as the dominant terpene, followed by pinene and caryophyllene.

Effects:

The breeder speaks of cerebral stimulation with physical calm. Consumers report elevated mood, euphoria and relaxation, some also creativity, concentration, talkativeness or fits of giggles. Whether the strain tends to energize or to subdue remains disputed: one report describes drifting off quickly, others an uplifting effect. Growers rate the strength from mediocre to very strong. Reported side effects are dry mouth, dry eyes and nervousness.

THC and CBD Content:

For the feminized version, Dinafem states 20 % THC; a blog post by the breeder from 2015 gave 18 %. Dinafem puts the CBD content at 0.1 to 0.2 %. In other strain descriptions, the THC figure ranges from 15 to 25 %.

Versions from Different Breeders:

Dinafem's autoflower version comes from Blueberry Auto and OG Kush Auto and is an equal split of indica and sativa. According to the breeder, 75 days pass from seed to harvest; stated are 350 to 400 g/m² indoors at 120 to 150 cm in height and 50 to 170 g per plant outdoors. Butter Bean Birdseeds offers a feminized Blue Kush Auto, likewise from Blueberry Auto and OG Kush Auto, and uses the line as a basis for further crosses.

The Blue Kush from B.O.G. Seeds has a different pedigree: according to the strain description, it goes back to Blue Moon Rocks and Sour Bubble, is predominantly indica-leaning, was only offered as regular seed and flowers in 49 to 55 days.

This article is for informational purposes only and is not a substitute for medical or therapeutic advice. If you have any health-related questions, please consult a doctor or another qualified professional.

Effects & aroma

From reviews and experience reports — subjective, not a medical statement

Reported as positive
sleepy
focused
energetic
Reported side effects
anxious
dry eyes
dry mouth
Aroma & flavor
Pine Spicy Rose

No reviews yet — information from the strain description. Rate the strain to see shares.

Cannabinoids & terpenes

Levels vary by batch, phenotype and cultivation — values are indicative

THC
20 % Breeder data
15–25 %additional figure
0 %35 %
CBD
0.1–0.2 % Breeder data
0 %20 %
Terpene profile
  • #1
    MyrceneHerbs
  • #2
    PinenePine
  • #3
    CaryophyllenePepper

Cultivation

Indicative values from breeder data and grow reports — varies by phenotype and setup

Flowering & harvest
Breeder data
Flowering time
60 days
Outdoor harvest
Early to mid October · Northern hemisphere
Yield & height
Breeder data
Yield indoor
500 g/m²
Yield outdoor
600–800 g/plant
Height outdoor
150 cm

According to Dinafem, pronounced stretching after the start of flowering; stretching in grow reports is documented inconsistently, so no factor is given.

Difficulty, environment & climate
Breeder data
Difficulty
Easy
Indoor
suitable
Outdoor
suitable
Greenhouse
suitable
Climate
Warm, Dry, Temperate

According to Dinafem, the strain thrives in a warm, dry, temperate climate or in a greenhouse and is resistant to humidity.

Morphology
Growth habit
Christmas-tree shape
Internode spacing
Short
Bud structure
Dense
Trichome coverage
High
Calyx-to-leaf ratio
High
Coloration
Depending on temperature blue, purple to lavender on the upper branches, lower leaves partly green (Dinafem); purple leaves well into flowering in one grow report.

Dinafem: medium-tall, fir-tree-shaped, thicker stems and shorter internodes than OG Kush (product page states medium internodes); buds compact and resinous. Grow reports: buds hard and dense with a low leaf share, one report rates the density slightly below average; no mold or fungal infestation; one report notes slight hermaphrodite tendencies of the feminized seeds.

Training
Topping
Tolerated
ScrOG
Recommended
Support needed
Yes

Dinafem considers SCROG and SOG suitable. One grow report notes a good response to topping the main shoot. Several reports describe thin, stretched stems needing support from the 5th week of flowering, others strong side branches.

Other
Community reports
Nutrient demand
Low

Genetics & origin

Origin
Cross
Blueberry × OG Kush
First release
2006
Type
Sativa-dominant
Available as seeds
Feminized, Regular, Autoflowering
Flowering types (all versions)
Photoperiod, Autoflowering
Original breeder
Dinafem

Versions by different breeders

Several breeders sell their own versions under this name. Each figure comes from the respective breeder.

DinafemBlue Kush
Original
PhotoperiodFeminized
Flowering
60 days
Yield indoor
500 g/m²
Yield outdoor
600–800 g/plant
Height outdoor
150 cm
THC
20 %

Feminized cross of Blueberry and OG Kush, 55 % sativa / 45 % indica; in the catalog since spring 2006 according to Dinafem. CBD stated on the product page only as “low”.

DinafemBlue Kush Autoflowering
Original
AutofloweringFeminizedAutoflowering
Yield indoor
350–400 g/m²
Yield outdoor
50–170 g/plant
Height indoor
120–150 cm
Height outdoor
150 cm

Autoflower version by the original breeder from Blueberry Auto × OG Kush Auto, 50 % indica / 50 % sativa. Total duration according to Dinafem 75 days from seed (stated in days, therefore not converted to weeks). THC stated only qualitatively as “high”.

B.O.G. SeedsBlue Kush
Different genetics
PhotoperiodRegular
Flowering
49–55 days

Cross of Blue Moon Rocks × Sour Bubble, predominantly indica, offered only as regular seed.

More breeders (1): Butter Bean Birdseeds

Community

23 grow and experience reports reviewed Community reports
Consensus

Beginner-friendly, low fertilizer demand, hard and dense buds with a low leaf share, no mold; flowering time longer than stated by the breeder. Aroma of dark berries and diesel, flavor of diesel, rose and strawberry. Effects mostly described as mood-lifting, euphoric and relaxing; side effects are dry mouth, dry eyes and nervousness.

Divergent reports

Sturdiness: strong side branches in some reports, thin stems needing support in others. Reaction to fertilizer: tolerant of fluctuations vs. quick burn. Effects: uplifting vs. quickly tiring in one report; strength from mediocre to very strong. Bud structure slightly below average density in one report. Appearance more indica-typical despite classification as sativa-leaning.

Reported values from individual grows
Flowering time in indoor grow reports
63–70 days
Flowering time in the indoor grow published by Dinafem
66–68 days
Final height in one indoor grow report (lower limit)
70 cm
Final height in one indoor grow report (upper limit)
120–130 cm
Yield of a hydroponic grow in a DWC system
130 g
Support needed from flowering week
5 week

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Similar strains

Related genetics, same dominant terpene, similar effects and aroma — excluding direct parents and descendants

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