CULTIVATION GUIDE

How to Grow Blue Dream

Complete Blue Dream cultivation guide — from seeds and germination to harvest, drying and curing.

Difficulty: Easy Flowering: 9–10 weeks Indoor Yield: 500–600g/m²

Difficulty

Easy

Flowering Time

9–10 weeks

Indoor Yield

500–600g/m²

Outdoor Yield

600g+/plant

Plant Height

120–200cm

Grow Type

Indoor/Outdoor

Blue Dream Grow Timeline

Stage	Duration	Notes
Seeds / Germination	3–7 days	Paper towel or direct soil method
Vegetative Stage	5–6 weeks	18/6 light cycle, nitrogen-heavy feeding
Flowering Stage	63–70 days	12/12 light cycle, bloom nutrients
Harvest & Dry	7–14 days	18–21°C, 50–60% RH, dark room
Cure	3–4 weeks	Glass jars, burp daily (first 2 weeks)
Total Grow Time	4.5–5.5 months

Blue Dream growing under optimised conditions

Blue Dream Seeds & Genetics

Genetics: Blueberry × Haze | Breeder: DJ Short (California) | Type: Sativa-dominant Hybrid

Blue Dream is a sativa-dominant hybrid created in California by crossing DJ Short's Blueberry indica with a Santa Cruz Haze sativa. The result is a vigorous, fast-growing plant with sweet berry aromatics and a balanced, creative high that became the top-selling strain in US dispensaries for years. Seeds are widely available in feminised and autoflowering versions. The autoflowering variant is ideal for growers without height-control experience. For a full introduction to growing cannabis from seed, visit our beginner cannabis growing guide. Germinate Blue Dream seeds using the paper towel method — they typically sprout within 3–7 days.

Indoor vs Outdoor Growing Blue Dream

Indoors, Blue Dream's sativa growth pattern means it can quickly outgrow small spaces. Use a SCROG net to manage the canopy — our SCROG guide walks through the full setup. Flip to 12/12 early (3–4 weeks into veg) to prevent excessive stretch. Full-spectrum LED lights suit Blue Dream's long flowering period well, running cooler and reducing electricity costs. Outdoors, Blue Dream is a powerhouse — tall, vigorous plants produce enormous yields in warm climates. Plant in spring for a late October harvest. Read our outdoor growing guide for spacing and soil recommendations.

Nutrients & Feeding Schedule for Blue Dream

Blue Dream is a heavy feeder, particularly during its long vegetative phase. Feed with nitrogen-rich nutrients at EC 1.4–2.0 in veg. During early flowering, transition to bloom nutrients high in phosphorus. Blue Dream benefits from CalMag supplementation throughout — especially important in soft water or coco coir. For a detailed feeding schedule, see our cannabis nutrients guide. Flush for 10–14 days before harvest to prevent harsh flavour in the final bud.

Common Problems & Solutions When Growing Blue Dream

Blue Dream's main challenge is height management indoors. Without training, it can double in size during the flowering stretch. Spider mites can establish quickly on Blue Dream's dense foliage — check leaf undersides weekly. Bud rot (botrytis) can affect dense colas in the final weeks — maintain airflow and keep humidity below 45%. Blue Dream is susceptible to magnesium deficiency, showing interveinal yellowing on older leaves. Address with a CalMag foliar spray or root drench.

Harvest, Drying & Curing Blue Dream

Blue Dream is best harvested when trichomes are 80–90% cloudy with minimal amber — this preserves its characteristic uplifting, cerebral effect. Harvest too late and the high becomes heavier and more sedative. Cut branches and hang in a cool, dark, ventilated space. Blue Dream's large, dense colas take 10–14 days to dry properly. Cure in glass jars for 4–6 weeks, burping daily in the first two weeks. The blueberry-sweet flavour intensifies significantly with a proper cure. See our harvest guide for full details.

Also See Our Blue Dream Strain Review

Discover the full terpene profile, effects, and medical uses of Blue Dream.

Blue Dream Strain Guide →

Blue Dream Terpenes & Effects

Myrcene Limonene Euphoria Effect

Frequently Asked Questions — Growing Blue Dream

Is Blue Dream easy to grow?

Blue Dream is considered beginner-friendly despite its sativa heritage. It is vigorous, high-yielding and tolerant of minor feeding mistakes.

How tall does Blue Dream grow?

Blue Dream can grow 120–200cm indoors and even taller outdoors. Training methods like topping and SCROG are recommended to manage its height indoors.

How long does Blue Dream flower?

Blue Dream takes 9–10 weeks to flower indoors. Outdoors, harvest falls in October in the Northern Hemisphere.

What is the yield of Blue Dream?

Blue Dream is a heavy producer — expect 500–600g/m² indoors under quality lighting, and 600g or more per outdoor plant.

Does Blue Dream grow well in hydro?

Yes, Blue Dream responds excellently to hydroponic grows, producing even larger yields than soil grows when dialled in correctly.

How do I control Blue Dream height indoors?

Top Blue Dream at the 5th node and use SCROG netting to keep the canopy even. Flip to 12/12 lighting earlier (after 3–4 weeks veg) to limit final height.