How to Grow Blue Dream Auto
Blue Dream Auto brings the beloved Blue Dream into a fast, easy autoflower. It is a sativa-dominant 70/30 plant with a gentle, low 10-13% THC, a citrus, spicy and woody flavor, and a focused, happy and relaxed effect. Its mild potency makes it an approachable, clear-headed choice, and its quick 7 to 9 week cycle makes it one of the easiest ways to grow a classic sativa.
This is an autoflowering strain, so it flowers on its own with age rather than on a change in the light cycle, running from seed to harvest in about 7 to 9 weeks. The seeds are feminized, so every plant grows into a flowering female and you never have to identify the sex or remove males. It keeps the balanced, uplifting character of Blue Dream, crossed with ruderalis to add the automatic flowering and very quick turnaround.
Recommended Strains
Blue Dream Autoflower
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THC | 10% - 13% (Low) |
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Type | Autoflowering |
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Yield | Medium |
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Phenotype | 30% Indica / 70% Sativa |
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 |
Easy, fast and gently potent, Blue Dream Auto is a rewarding way to grow a sativa classic with a lighter effect. You can see the full genetics and buy Blue Dream Auto seeds on the strain page, and browse the rest of our autoflowering seeds alongside it.
Strain Profile at a Glance
| THC | Low (10-13%) |
|---|---|
| Lineage | Blue Dream x Ruderalis |
| Type | Autoflowering (feminized) |
| Genetics | 30% Indica / 70% Sativa |
| Climate | Temperate |
| Life cycle | 7-9 weeks seed to harvest |
| Harvest | All season |
| Height | 4.92 ft / 1.5 m |
| Yield indoor | 1.31 oz/ft² (400 g/m²) |
| Yield outdoor | 14.11 oz/plant (400 g/plant) |
| Grow difficulty | Easy, beginner-friendly |
| Flavors | Citrus, Spicy, Woody |
| Effects | Focused, Happy, Relaxed |
Promos & Deals
Growing an Autoflowering Strain
Blue Dream Auto flowers automatically with age rather than in response to the light cycle, so it does not need a switch to 12/12 to start flowering. It begins on its own after a few weeks and runs from seed to harvest in about 7 to 9 weeks, under long days of 18 to 20 hours of light the whole way through. That quick turnaround is one of its best features. Because the seeds are feminized, every plant grows into a flowering female, so there is no sexing and no need to remove males.
Because the life cycle is fixed and short, the plan matters more than with a photoperiod plant: you cannot veg it longer to make it bigger, so start it in its final pot, keep any training light, and avoid stress so it uses its short life to build buds. As a sativa-leaning auto it still stretches to around 1.5 m, so give it a little headroom and a touch of early low-stress training to keep the canopy even.
Climate and Where to Grow It
Blue Dream Auto suits a temperate or Mediterranean-style climate with plenty of sun, steady warmth and good airflow. Because it is an autoflower, it is not tied to the seasons: it finishes on its own short timer, so you can run it all season and even fit several cycles into a warm year, which suits its very quick 7 to 9 week life cycle.
It performs well indoors and out, with a balanced yield either way. Indoors it returns around 400 g/m² in a well-managed tent, while outdoors it gives roughly 400 g per plant with full sun and room for the roots. As a sativa-dominant auto of around 1.5 m it stretches taller than many autos, so keep the canopy open so light and air reach the lower buds.
Keep humidity under control through flowering to protect the buds: around 55-60% early on, nearer 40-45% as the flowers fill out, and lower toward harvest. Its airier, sativa flower structure helps with airflow, but steady humidity control still keeps the finish clean. Aim for daytime temperatures around 72-82°F (22-28°C), which this temperate-climate plant enjoys.
Feeding Schedule (EC Guide)
Blue Dream Auto is a light-to-moderate feeder, and as a fast autoflower it pays to go gently: build nutrients up slowly and let the plant set the pace, since there is no long veg to recover from mistakes. Feed it through its short cycle, then taper off for the final flush so the citrus-and-woody flavor comes through clean and the smoke finishes smooth. The ranges below are a starting guide; adjust to your water and medium.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4-0.6 | Very light feed while roots establish |
| Early growth | 0.8-1.2 | Raise nitrogen as the plant builds size |
| Early flower | 1.2-1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4-1.6 | Peak bloom feed while the buds swell |
| Flush | 0.0-0.4 | Plain water for the final 1-2 weeks |
Flowering and Harvest
Because it is an autoflower, Blue Dream Auto starts flowering on its own after a few weeks of growth and runs from seed to harvest in about 7 to 9 weeks, with no light-cycle change needed, which is fast even for an auto. As a sativa-dominant plant it fills out with long, resin-flecked flowers rather than solid, chunky colas, keeping the classic structure of Blue Dream. Thanks to that quick cycle you can harvest it all season.
Yields are solid for a fast auto: around 400 g/m² indoors and 400 g per plant outdoors with good sun and space. Give it a little gentle training so the lower buds get light, feed it lightly through its cycle, and harvest when most of the trichomes have turned cloudy for the fullest citrus-and-woody flavor and a clear, gentle 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 is worthwhile with an aromatic sativa, because a gentle dry protects the citrus and spice notes and the trichomes that carry its flavor.
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 citrus, spicy and woody notes and smooths the smoke, which matters on a Blue Dream cross where that bright, aromatic character is the main attraction.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Blue Dream Auto is an aromatic, resin-flecked plant, so its trim works well for dry sift, bubble hash or rosin. It makes for a flavorful, citrus-and-woody concentrate run from material most growers would otherwise throw away, a smart way to get a little more from each plant.
Flavor and Terpenes
Blue Dream Auto has a bright, aromatic flavor: a citrus lift over a spicy, woody base, carrying the fresh character Blue Dream is known for. It is a lively, citrus-and-spice smoke with a woody backbone, and a good cure really brings that character forward in the jar and on the inhale.
Its terpene profile shapes that character. Caryophyllene drives the warm, peppery spice, while myrcene lays down an earthy, slightly fruity base. Terpinolene and p-cymene bring the fresh, woody edge, and linalool adds a soft, floral sweetness, with a bright citrus note lifting the whole profile. Together these terpenes frame the citrus, spicy and woody character Blue Dream Auto is known for.
Effects and Best Use
With its low 10-13% THC and sativa-dominant 70/30 make-up, Blue Dream Auto delivers a gentle, clear-headed experience rather than a strong high. It is reported as focused, happy and relaxed, pairing an upbeat, clear head with an easy, settled body, so it leans to daytime use. Its mild potency makes it very approachable and easy to dose, which is a big part of its appeal.
That focused, happy and relaxed profile makes it a good daytime strain, suited to staying active, clear and sociable while enjoying its bright, citrus-forward flavor. The combination of a fast, easy auto grow, a gentle effect and the classic character of Blue Dream is exactly why it stands out, especially for those who prefer a lighter, more functional smoke.
Common Problems and Pro Tips
The biggest thing to get right with Blue Dream Auto, as with any autoflower, is the planning: because its life cycle is fixed and short, you cannot veg it longer to fix a slow start. Start it in its final pot to avoid transplant stress, keep any training light, and do not let early problems linger, since with such a quick cycle the plant has little time to recover before it flowers.
As a sativa-leaning auto it stretches to around 1.5 m, so give it headroom from the start and a little early low-stress training to keep the canopy even. Its airier structure helps with airflow, but a tidy canopy still pays off: keep the air moving, hold humidity down as the buds fill out, and defoliate a few of the largest fan leaves in mid-flower so light reaches the lower buds.
As a pro tip, go gentle on the nutrients: autos are lighter feeders, so it is easy to overdo it, and a lighter touch keeps the citrus-and-woody flavor clean. Finish with a plain-water flush and a full three to four week cure, and remember its effect is mild, so it is an easy one to enjoy through the day.
FAQ
Is Blue Dream Auto an autoflowering strain?
Yes. Blue Dream Auto is an autoflowering, feminized strain, so it flowers on its own with age rather than needing a switch to a 12/12 light cycle, and every seed grows into a flowering female. You run it under long 18 to 20 hour days from seed to harvest, with no sexing and no males to remove, which is a big part of why it is so beginner-friendly.
How much THC does Blue Dream Auto have?
Blue Dream Auto is a low-THC strain, testing at around 10-13%, so it gives a gentle, clear-headed effect rather than a strong high. Combined with its sativa-dominant 70/30 genetics, the result is a focused, happy and relaxed experience. That mild potency makes it very approachable and easy to dose, which suits daytime and lighter use.
How long does Blue Dream Auto take to grow?
Blue Dream Auto runs from seed to harvest in about 7 to 9 weeks, which is fast even for an autoflower, since it starts flowering on its own after a few weeks rather than waiting for a light-cycle change. That very quick cycle means you can grow it all season and fit several runs into a warm year, which is one of its biggest appeals.
What does Blue Dream Auto taste like?
Blue Dream Auto has a bright citrus lift over a spicy, woody base. Caryophyllene drives the peppery spice, myrcene adds an earthy body, terpinolene and p-cymene bring the woody edge, and linalool a soft sweetness. A proper three to four week cure really brings that fresh, citrus-and-spice character forward on the inhale.
How much does Blue Dream Auto yield?
Blue Dream Auto gives a solid yield for a fast auto: around 400 g/m² indoors and 400 g per plant outdoors with good sun and space. Results depend on light, pot size and canopy health, so start it in its final pot, feed it lightly, give it headroom, and keep an open canopy so the lower buds develop well.
Is Blue Dream Auto good for beginners?
Yes. Blue Dream Auto is a beginner-friendly plant: it is feminized so there is no sexing, it finishes fast in 7 to 9 weeks, and its low THC and gentle effect make it forgiving to grow and easy to enjoy. It does stretch to around 1.5 m, so give it headroom and a little early training, but overall it is an easy, rewarding first auto.
