About This Plant
Blue Dream is a sativa-dominant Cannabis sativa cultivar associated with Blueberry and Haze ancestry. Peer-reviewed Blue Dream-specific production trials were not found, so this record uses controlled Cannabis sativa evidence for nutrition, environment, propagation, disease, and post-harvest guidance while treating cultivar yield and flowering-time claims as lower-confidence practical estimates.
How to Grow Blue Dream
Learn how to grow Blue Dream from seed to harvest in 113 days. Intermediate difficulty. Complete nutrient guide, pH/EC requirements, and growing conditions for hydroponics, soil & greenhouse.
Backed by 20 peer-reviewed citations.
Nutrient Requirements by Growth Stage
The previous record overemphasized bloom potassium and used zero late-flower nutrition. Vegetative cannabis trials support about 160 ppm N, 30 ppm P, and moderate K, while flowering evidence supports moderate N/P and no high-K bloom-booster requirement…
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Growing Environments
Blue Dream is biologically compatible with indoor rooms, greenhouses, outdoor production, and containers where legal and climate-appropriate. Indoor or greenhouse systems are preferred for repeatable inflorescence quality because light, humidity, CO2, photoperiod, sanitation, and disease pressure can be managed…
Temperature
Use the verified Cannabis sativa temperature envelope rather than cultivar folklore. Hemp germination work supports 20-30C as a practical germination range, and cannabis photosynthesis studies support warm production around 25-30C when water, CO2, and light are not limiting. For Blue Dream, keep growth near 20-28C with a 25C target; heat above 30C should be managed carefully because whole-crop quality depends on humidity, root temperature, and water status.
Humidity
Use stage-specific humidity rather than one static room target. Cuttings and seedlings can use higher humidity, vegetative plants can run about 50-70% RH, and flowering plants should be kept near 40-50% RH to protect inflorescences…
Light
Blue Dream is a photoperiod cannabis cultivar. Maintain vegetative plants under long days, then induce flowering with uninterrupted short days; 12 h remains the conservative reproductive trigger…
Airflow
Active air circulation is verified as a disease and humidity-control requirement, but exact Blue Dream canopy air-speed trials were not found. Use continuous gentle movement, exhaust, dehumidification, and pruning to prevent stagnant high-RH pockets during flowering…
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Hydroponic System Compatibility
Blue Dream is compatible with active soilless and hydroponic systems when root-zone oxygen, pH, EC, and plant support are controlled. Drip fertigation in coco or rockwool is the preferred full-cycle approach because it supports runoff EC checks and dry-back control…
Growing Media
Use a well-aerated, well-drained medium. Coco coir with drip fertigation is preferred because it supports frequent nutrient delivery and runoff monitoring for a tall cannabis cultivar…
Container Specs
Use enough root volume for a trained photoperiod cannabis plant. Published greenhouse-style cannabis work commonly uses multi-liter containers, and Blue Dream growth habit justifies at least 13 L, with 19-30 L safer for tall indoor plants…
Training & Support
Training is strongly recommended for Blue Dream indoors because sativa-dominant stretch can outgrow small rooms. Use topping, LST, SCROG netting, trellis support, pruning, and stakes to spread branches, support flowers, improve light interception, and reduce humid shaded zones…
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Propagation
Propagate Blue Dream primarily from stem cuttings when cultivar uniformity matters. Seed propagation can work at warm temperatures, but seed-grown plants may segregate for sex, chemotype, and growth habit…
Harvesting
Harvest Blue Dream once for mature female inflorescences; it is not a regrowing crop. Use bract trichome maturity and flower condition rather than calendar age alone, remove any Botrytis-contaminated material, then dry slowly in darkness with gentle airflow around 18-21C and 50-55% RH…
Planting Calendar
Indoor Blue Dream can be scheduled year-round because photoperiod is controlled. Keep vegetative plants under long days, then initiate flowering with 12 h darkness as the conservative trigger…
Common Issues
The current record listed only stretch and nutrient burn, so the verified issue set was expanded. Peer-reviewed cannabis pathology identifies powdery mildew, Botrytis bud rot, Fusarium and Pythium root disease, and viroid risk as major production concerns…
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