How to Grow Blue Dream
Blue Dream is a legendary, balanced hybrid feminized strain that crosses Blueberry with Haze. It is a 50/50 hybrid with a high 17-24% THC, a sweet berry, blueberry and mango flavor, and a happy, relaxed, talkative effect. A Spannabis 2011 winner famous for its sweet berry aroma and huge yields, it is one of the most rewarding and reliable strains you can grow.
As a feminized photoperiod strain, Blue Dream lets you control the grow: you keep it in vegetative growth under long days for as long as you like, then switch the lights to trigger flowering. It finishes flowering in about 8 to 10 weeks, and outdoors it is ready to harvest in October, giving you a tall, high-yielding plant with a sweet, berry-forward profile.
Recommended Strains
Blue Dream
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THC | 17% - 24% (High) |
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Type | Feminized |
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Yield | High |
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Phenotype | 50% Indica / 50% Sativa |
Blue Dream HMC Edition
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THC | 17% - 24% (High) |
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Type | Feminized |
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Yield | High |
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Phenotype | 50% Indica / 50% Sativa |
Potent, enormously productive and beginner-friendly, Blue Dream is a rewarding strain to grow. You can see the full genetics and buy Blue Dream seeds on the strain page, and browse the rest of our feminized seeds alongside it.
Strain Profile at a Glance
| THC | High (17-24%) |
|---|---|
| Lineage | Blueberry x Haze |
| Type | Feminized |
| Award | Spannabis 2011 winner |
| Genetics | 50% Indica / 50% Sativa |
| Climate | Temperate |
| Flowering time | 8-10 weeks |
| Harvest | October (outdoors) |
| Height | 6.56 ft / 2 m |
| Yield indoor | 1.97 oz/ft² (600 g/m²) |
| Yield outdoor | 17.64-24.69 oz/plant (500-700 g/plant) |
| Grow difficulty | Easy, beginner-friendly |
| Flavors | Berry, Blueberry, Mango, Sweet |
| Effects | Happy, Relaxed, Talkative |
Promos & Deals
Vegetative Growth and Flipping to Flower
Blue Dream is a feminized photoperiod strain, so it flowers in response to the light cycle rather than on its own schedule. You keep it in vegetative growth under long days, usually 18 hours of light to 6 of darkness. Because it grows tall and stretches hard, it is worth keeping the veg stage a little shorter indoors, since it can roughly double in height once you flip and quickly outgrow a small tent.
When the plant is the size you want, you flip the lights to a 12/12 cycle, 12 hours of light and 12 of darkness, to trigger flowering. From that point it takes about 8 to 10 weeks to finish. Because it can reach around 2 m, it responds very well to training: topping and low-stress training during veg keep it shorter and spread its long branches, which helps light reach more bud sites and lifts its already big yield.
Climate and Where to Grow It
Blue Dream suits a warm, temperate climate and grows well both indoors and outdoors where it gets strong light and steady conditions. Because it is a photoperiod plant, outdoor growers should time it so it finishes in October, while indoor growers can run it year-round under a controlled light cycle. Give it room to stretch, since at around 2 m it is one of the taller, more vigorous plants you can grow.
Its high 17-24% THC places it among our high-THC seeds, and its even, balanced make-up sits naturally in our hybrid seeds. Its big production earns it a place in our high-yielding seeds, while its sativa side comes from the haze strains in its lineage. As a Spannabis 2011 winner it also sits among our award-winning seeds and our Spannabis winners, and you can explore its Blueberry parent on the Blueberry page.
On yield it is one of the heaviest producers you can grow, giving around 600 g/m² indoors and 500-700 g per plant outdoors, so with good light and feeding the reward is huge. Keep temperatures around 68-80°F (20-27°C) and the humidity steady through flowering so its long, sweet-smelling colas ripen clean in its temperate window.
Feeding Schedule (EC Guide)
Blue Dream is a vigorous, extremely heavy-yielding plant, so it can take a full feed, but build up gradually rather than pushing it from the start. Feed it steadily through veg to fuel its size, shift toward bloom nutrients as it starts flowering, then flush at the end so the berry, blueberry and mango notes come through clean. The ranges below are a starting guide; adjust to your water and medium.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.5-0.7 | Light feed while roots establish |
| Vegetative | 1.3-1.7 | Build nitrogen to fuel its tall frame |
| Early flower | 1.6-2.0 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.8-2.2 | Peak bloom feed for its big colas |
| Flush | 0.0-0.4 | Plain water for the final 1-2 weeks |
Flowering and Harvest
Once flipped to 12/12, Blue Dream flowers for about 8 to 10 weeks, and outdoors it is ready around October. It builds long, chunky, resinous colas that develop a sweet berry and blueberry aroma with a ripe mango note over a sweet base as they ripen. That bright, fruity scent is the signature it inherits from its Blueberry parent, and the sheer size of the harvest it produces is its biggest calling card.
Yields are exceptional, around 600 g/m² indoors and 500-700 g per plant outdoors on a well-grown specimen, so there is serious weight here. Keep the long colas supported so the branches do not strain, keep the canopy open so light reaches the lower sites, feed it well through flower, and harvest when most of the trichomes have turned cloudy with a few amber for the fullest berry, mango flavor and the most rounded effect.
Drying and Curing
Dry whole plants or branches in a dark room at around 60°F (15-18°C) and 55-60% humidity for 7-14 days, until the thin stems snap rather than bend. A slow, even dry protects the sweet berry, blueberry and mango aromatics, which can fade if the buds dry too fast or too warm, so take your time and keep the room dark and gently ventilated.
Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure is what brings out the full berry, blueberry and sweet character and smooths the smoke, turning a freshly dried harvest into the bright, fruity result Blue Dream is famous for.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Blue Dream is a resinous plant, so its trim is excellent for dry sift, bubble hash or rosin. That resin and its sweet, berry aroma make the trim genuinely valuable, turning offcuts into a potent, flavorful concentrate run rather than waste, and with yields this big there is plenty of trim to work with.
Flavor and Terpenes
Blue Dream leads with a sweet berry and blueberry flavor with a ripe mango note over a sweet base, the bright, fruity profile it inherits from its Blueberry parent. It is a smooth, clean, full-bodied smoke, and a good cure brings that berry-mango character forward in the jar and on the inhale, with the sweetness tying it all together.
Its terpene profile frames that flavor. Myrcene brings a soft, earthy base that is classic in Blue Dream, while terpinolene adds a fresh, fruity, slightly herbal lift that plays into the sativa side. Caryophyllene adds a gentle peppery warmth and linalool a soft, floral touch. The berry, blueberry and mango notes themselves come through from its genetics, with these terpenes building the fresh, soft frame around them.
Effects and Best Use
With its high 17-24% THC and balanced 50/50 make-up, Blue Dream delivers a bright, well-rounded experience. It is reported as happy, relaxed and talkative, pairing an upbeat, sociable head with an even, comfortable body that does not pull too far in either direction. The potency is solid without being extreme, which is part of why it is so widely loved and easy to enjoy.
That happy, relaxed, talkative profile makes it a flexible choice for daytime or social use, well matched to its sweet berry, mango flavor. The combination of an upbeat, balanced effect, a bright fruit taste and enormous yields is exactly why Blue Dream has stayed one of the most popular strains for growers everywhere.
Common Problems and Pro Tips
Blue Dream is forgiving and beginner-friendly, but its height and vigor are the main things to plan for. As a tall plant that can reach 2 m and stretches hard after the flip, it needs space, so keep the veg stage shorter indoors and train it early. Topping and low-stress training turn its long branches into an even canopy rather than one tall, dominant cola.
Those big, heavy colas also need support as they fill out, so stake or net the branches so they do not bend or snap under the weight. A plant this productive drinks and feeds heavily too, so keep up with water and nutrients through flower, and keep the air moving so the dense, sweet buds ripen clean.
As a pro tip, give it as much light and room as you can to unlock those huge yields, then flush properly at the end so the berry, blueberry and mango notes come through clean. Protect those bright aromatics with a careful dry and a full three to four week cure, save the resinous trim for concentrates, and harvest when most trichomes are cloudy with a few amber for a rich, flavorful result.
FAQ
Is Blue Dream a feminized strain?
Yes. Blue Dream is a feminized photoperiod strain, so it produces female plants and flowers in response to the light cycle. You keep it under long days to grow its size, then flip the lights to a 12/12 cycle to start flowering. That control lets you dial in exactly how big the plant gets before it blooms, which matters for such a tall, vigorous strain.
How much THC does Blue Dream have?
Blue Dream is a high-THC strain, testing from about 17% up to 24% depending on the phenotype and how it is grown. Combined with its balanced 50/50 genetics, the result is a happy, relaxed, talkative effect. The potency is solid without being overwhelming, which is a big part of why it is such an approachable, widely loved strain.
Has Blue Dream won any awards?
Yes. Blue Dream is a Spannabis 2011 winner, which is why it sits among our award-winning seeds and our Spannabis winners. That recognition reflects its bright berry flavor, big yields and balanced, easy-going effect, and it is a big part of why the strain has stayed a favorite with growers around the world for so long.
How tall does Blue Dream get?
Blue Dream is a tall, vigorous plant that can reach around 2 m, and it stretches hard after you flip it to flower. Indoors, keep the veg stage shorter and train it early with topping and low-stress training to keep it manageable. Outdoors it has the room to reach full size, which is where its huge yields come from.
What does Blue Dream taste like?
It has a sweet berry and blueberry flavor with a ripe mango note over a sweet base, the bright profile it gets from its Blueberry parent. Myrcene brings a soft earthy base, terpinolene a fresh, fruity lift, caryophyllene a peppery warmth and linalool a soft note. A proper three to four week cure brings that berry-mango character forward on the inhale, smooth and clean.
How much does Blue Dream yield?
Blue Dream is one of the heaviest producers you can grow, giving around 600 g/m² indoors and 500-700 g per plant outdoors. To reach those numbers, give it strong light, a full feed and good support for the long, heavy colas. Training it during veg spreads the canopy and helps the plant push its harvest even higher.
