Blue Haze Strain Feminized SeedsBlueberry sweetness meets old-school Haze in a feminized seed
5.00 out of 5 · 11 reviewsThe Blue Haze strain joins two famous lines, Blueberry and Haze, into a hybrid that smells of ripe berries over spicy, woody incense. Its first version, from Homegrown Fantaseeds, won the sativa category at the 2001 High Times Cannabis Cup. Feminized Blue Haze seeds flower in about 8 to 10 weeks, test around 20–23% THC and often color up purple-blue late in bloom.
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What is the Blue Haze strain?
Blue Haze is a Blueberry × Haze hybrid, first released by Dutch breeder Homegrown Fantaseeds, whose Blue Haze took first place in the sativa category at the 2001 High Times Cannabis Cup. That original was sold only as regular seeds; feminized Blue Haze comes from later breeders such as Zativo, which lists Blueberry × Amnesia Haze, about 20% THC and 9 to 10 weeks of flowering. Users report a sweet blueberry flavor with a spicy, woody Haze finish and a happy, uplifting high.
Zativo notes the flowers shift to purple and icy blue tones as they mature, a trait from the Blueberry side.
Blue Haze strain specs
Blue Haze has been bred by more than one seed maker, so the numbers below combine SeedFinder's entries for Homegrown Fantaseeds' original and Zativo's feminized version with strain data from AllBud and Weedmaps. Sources disagree on how far Blue Haze leans toward sativa or indica, so no single ratio is given.
| Type | Hybrid; Zativo lists 80% sativa, AllBud lists 80% indica |
|---|---|
| Genetics | Blueberry × Haze (Homegrown Haze in the original; probably Amnesia Haze in Zativo's line) |
| Bred by | Homegrown Fantaseeds (original, regular seeds); feminized lines by Zativo and others |
| THC | About 20% (Zativo) to 21–23% (AllBud) |
| CBD | Low to moderate; AllBud lists 1–2% |
| Main terpenes | Myrcene, caryophyllene, pinene (typical of its parents; no lab profile published) |
| Aroma & flavor | Fresh blueberry, sweet fruit, spicy flowers, earth and wood |
| Reported effects | Happy, euphoric, uplifting, creative, relaxed |
| Seed type | Feminized photoperiod (female plants) |
|---|---|
| Flowering indoors | 8–10 weeks; about 60 days (Homegrown) to 67 days (Zativo) |
| Outdoor harvest | End of October in the Northern Hemisphere (Zativo) |
| Height | About 1.5 m (5 ft) indoors per Zativo; taller outdoors |
| Yield | About 450–600 g/m² indoors per Zativo |
| Difficulty | Moderate; sensitive to over- and underfeeding |
| Best methods | Topping and SCROG to manage Haze stretch |
| Climate | Indoors, or warm, sunny regions with a long, dry autumn |
Where does the Blue Haze strain come from?
Blue Haze began at Homegrown Fantaseeds in Amsterdam, which crossed its original Haze with the original Blueberry. SeedFinder records that this Blue Haze won the Best Sativa category at the 2001 High Times Cannabis Cup, and that Homegrown never sold it as feminized seeds. The original flowered in around 60 days, quick for anything with Haze in its background.
Feminized Blue Haze seeds come from later breeders. Zativo describes its version as probably Blueberry × Amnesia Haze, while Weedmaps notes that some sources name Super Silver Haze as the Haze parent instead. Weedmaps also lists Blueberry Haze as another name for the strain, though Grow Diaries tracks a separate Blueberry Haze made with Mystery Haze, so check the parents listed on any pack you buy.
Is Blue Haze indica or sativa?
Blue Haze is a true hybrid, and sources disagree on which side wins. Zativo rates its feminized line about 80% sativa with a tall, slender build, while AllBud lists Blue Haze as 80% indica and Weedmaps describes Homegrown's original as indica-leaning even though it won a sativa award. Expect a plant with Haze stretch and spice, and a Blueberry-style sweetness and color.
Phenotypes vary. Some Blue Haze plants lean toward the bushier Blueberry side, others toward the taller Haze side, so plan your space for the taller type.
What does Blue Haze taste like, and how does it feel?
Aroma and flavor
Blue Haze tastes like fresh blueberries on the inhale, with a spicy, floral Haze finish and earthy, woody notes underneath that grow stronger when the buds are ground.
- Blueberry
- Sweet fruit
- Spice
- Floral
- Earthy
- Wood
Terpenes
- Myrcene
- Ripe, fruity depth linked to the Blueberry side
- Caryophyllene
- Peppery spice in the Haze finish
- Pinene
- Fresh, woody top note
No lab-tested terpene profile is published for Blue Haze; these terpenes are typical of its Blueberry and Haze parents.
Reported effects
Users most often describe Blue Haze as happy, euphoric and uplifting, with a bright, creative head buzz from the Haze side followed by a looser, relaxed body feel. On Weedmaps, reports split evenly between relaxed and euphoric.
- Happy
- Euphoric
- Uplifted
- Creative
- Relaxed
Blue Haze's reported downsides are dry mouth and dry eyes, and the Haze side can feel racy at high doses.
These Blue Haze effects summarize user reports on Weedmaps and AllBud and the breeders' descriptions. People react differently, and nothing here is medical advice.
How do you grow Blue Haze seeds?
Blue Haze feminized seeds suit growers with a little experience: veg for a few weeks, top and net the plants to control Haze stretch, flower for 8 to 10 weeks under 12/12, and feed carefully because the strain reacts quickly to too much or too little.
- Germinate3–7 days
Blue Haze seeds sprout reliably in a warm, moist starter; move seedlings into light soil with a mild feed.
- Vegetate4–5 weeks indoors
Top Blue Haze early and spread the branches under a net, since Haze-leaning plants can double in height after the flip.
- Flower8–10 weeks
After switching to 12/12, watch for purple and blue tones from about week six, especially when nights run cooler.
- HarvestDays 60–67 indoors · end of October outdoors
Harvest Blue Haze when most trichomes are cloudy; Haze-leaning phenotypes may want the extra week.
Grow tips for Blue Haze
- Go easy on nutrients. Zativo warns that Blue Haze is sensitive to both overfeeding and underfeeding, so raise doses slowly and watch the leaf tips.
- Build a flat canopy. Topping plus a SCROG net keeps tall Blue Haze phenotypes within about 1.5 m and puts more buds in direct light.
- Cool nights bring out color. A night-time drop of about 5 °C (9 °F) in late flower helps Blue Haze show the purple and blue shades it is known for.
- Outdoors, you need a long season. Zativo's Blue Haze finishes at the end of October, so it suits warm, dry regions; in northern Canada or wet autumns, grow it indoors or in a greenhouse.
- Keep a steady environment. Big temperature or humidity swings stress Blue Haze more than many hybrids, so aim for stable conditions through bloom.
Is Blue Haze the right strain for you?
Great pick if you
- Love sweet berry flavors with a spicy Haze twist
- Want an upbeat, creative hybrid with an easy finish
- Like buds that can turn purple and blue
- Have grown a few crops and can dial in feeding
- Want a piece of Cannabis Cup history in feminized form
Think twice if you
- Are growing for the very first time
- Need an outdoor harvest before late October
- Only have a very short tent and can't train plants
- Want a heavy, sleepy indica
Blue Haze strain FAQ
What is Blue Haze a cross of?
Blue Haze is a cross of Blueberry and Haze. Homegrown Fantaseeds' original used its own Homegrown Haze, while Zativo lists its feminized version as probably Blueberry × Amnesia Haze. Some sources name Super Silver Haze as the Haze parent.
Did Blue Haze win a Cannabis Cup?
Yes. Homegrown Fantaseeds' Blue Haze won first place in the sativa category at the 2001 High Times Cannabis Cup, according to SeedFinder's breeder information. That award-winning original was sold as regular seeds only.
How long does Blue Haze take to flower?
Blue Haze flowers in about 8 to 10 weeks after the switch to 12/12. Homegrown Fantaseeds listed around 60 days for the original, and Zativo lists about 67 days for its feminized line. Outdoors it finishes around the end of October.
How much THC does Blue Haze have?
Blue Haze is usually listed at around 20 to 23% THC. Zativo gives about 20% for its feminized version and AllBud lists 21 to 23%, with CBD from low up to about 1 to 2%.
Is Blue Haze the same as Blue Dream?
No. Blue Haze and Blue Dream both come from Blueberry and Haze lines, but they are separate strains from different breeders. Blue Dream is a California strain, while Blue Haze traces back to Homegrown Fantaseeds in Amsterdam.
Is Blue Haze the same as Blueberry Haze?
Sometimes. Weedmaps lists Blueberry Haze as another name for Blue Haze, but other seed makers sell a separate Blueberry Haze with different parents, such as a Blueberry × Mystery Haze cross. Check the listed genetics to know which you have.
How tall does Blue Haze grow?
Blue Haze reaches about 1.5 m (5 ft) indoors according to Zativo, and outdoor plants can grow taller. Haze-leaning phenotypes stretch noticeably after the flip to 12/12, so topping and a SCROG net help keep the plant manageable.
Is Blue Haze good for beginners?
Blue Haze is better for growers with some experience. Zativo describes it as sensitive to environmental swings and to too much or too little feeding, and its Haze side can stretch. A grower who has finished a few crops should handle it well.
Blue Haze reviews
5.00 out of 5 from 11 reviews
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11 reviews for Blue Haze Feminized Marijuana Seeds
Blue Haze's relatives and similar strains
Blueberry Feminized
Amnesia Haze Feminized
Super Silver Haze Feminized
Purple Haze FeminizedBeaver Seeds sells cannabis seeds for collection and genetic preservation where permitted. Check the laws in your state, province or country before germinating seeds. Effects are user-reported and are not medical claims.
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Vivianne Ortega –
This is my first time growing and man, I can tell that this strain really lives up to its name! Amazing how 8-10 weeks gives you an amazing result and every puff is just too magical and very sooth and smooth at the same time. Not to mention that it does gives you generous yields. I might try doing it outdoors next time when I buy another batch here. Dense buds, amazing flavor and fragrance. It smokes smoothly! Quite vivacious and pleasant high. Will definitely come back again. Thank you! <3