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How to Grow Blue Dream Seeds (2025 Grow Diary)

September 3, 2025 / in Genetics Grow Guides / Mesmerise

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Blue Dream is a legendary sativa-dominant hybrid (30% indica / 70% sativa) born from crossing Blueberry × Haze. With up to 23% THC and minimal CBD, it draws fans for its uplifting, calming high and iconic flavor of berries, pine, and sweet woods. Medically, it’s prized for stress relief, mild pain, anxiety, and depression.

👉 Shop Blue Dream seeds at Hypnos Seeds
🔗 Learn more about Blue Dream strain on Leafly

Setup Checklist for Growing Blue Dream Seeds

Blue Dream is a moderately vigorous grower: tall, lush, and rewarding with training and proper care.

🏕️ Indoor Setup

Tent: minimum 2×2 ft; prefer 3×3 for more canopy room
Lighting: LED 400–600 W equivalent
Ventilation: Inline fan + carbon filter
Airflow: Oscillating fan for canopy movement
Humidity: Hygrometer with humidifier/dehumidifier
Pots: 3–7 gallon fabric pots
Medium: Good soil or coco + perlite mix
Nutrients: Veg & bloom feed, Cal-Mag supplement
Water: pH 6.2–6.6

🌞 Outdoor Notes

Climate: Mediterranean-style or mild
Soil: Well-draining, nutrient-rich
Harvest: Early to mid-October before cooler weather
Protection: Stakes/support for tall plants, pest control with neem or netting

Germination: Starting Your Blue Dream Grow

Use the trusted paper towel method for seed sprouting:

Place seeds between damp (not wet) paper towels.
Use two plates to keep them dark but ventilated.
Store at ~70–75°F and check daily.
Once the taproot is ~½”, plant root-tip down into the medium.

⚠️ Avoid plastic bags or direct light, these can harm delicate sprouts.

Week 1: Seedling Stage

✅ What to Expect

Height: ~1–2 in
Growth: Cotyledons followed by first true leaves
Color: Bright, healthy green
Roots: Just beginning to establish

A visual showing the cannabis seedling stage, from sprouted seed to first set of true leaves.

🧪 Environment Targets

Light: 18–24 hrs, low intensity (~24 in above)
Humidity: 65–70%
Temp: 72–77°F
Watering: Light mist or circle around stem
Nutrients: None (or minimal Cal-Mag in inert setups)

👩‍🌾 Tips

Don’t overwater; seedlings are sensitive to soggy roots.
Use gentle airflow for sturdier stems.
Drop the light if stretching begins.

Week 2: Early Veg + Optional LST

✅ What to Expect

Height: ~2–4 in
Leaves: 3–5 finger leaves forming
Structure: Tight nodes, initial sturdy stem growth

🌡️ Environment Targets

Light: 18 hrs/day, moderate intensity (~300 PPFD)
Humidity: 60–65%
Temp: 73–78°F
Nutrients: Start light veg feed (¼ strength)

🌱 Optional LST

Gently bend and tie down the main stem to broaden canopy
Re-adjust ties as the plant responds to avoid damage

Week 4: Pre-Flower & Final Veg Training

✅ What to Expect

Height: 8–12 in, bushy development
Pre-flowers: White hairs forming at nodes
Aroma: Faint berries + pine scents begin to emerge

🌡️ Environment Targets

Light: 18/6, around 500 PPFD
Humidity: 50–55%
Temp: 73–78°F
Nutrients: Full veg strength feed

🌱 Final Training

Complete LST or set up SCROG
Light defoliation for airflow
Get ready for the 12/12 light transition

Week 5: Flower Begins

✅ What to Expect

Height: 12–18 in; stretch starts
Pistils: Emerge at node sites
Aroma: Berry and pine begin to scent the space

🌡️ Environment Targets

Light: Flip to 12/12
Humidity: 45–50%
Temp: 72–78°F
Nutrients: Bloom formula (lower N, higher P & K)

🌱 Tips

Adjust training to control stretch
Remove any large fan leaves obstructing bud sites

Week 6: Bud Sites & Trichome Development

✅ What to Expect

Height: 18–24 in
Buds: Compact sites forming on colas
Trichomes: Early frosted appearance
Aroma: Sweet berries and fresh woods intensify

🌡️ Environment Targets

Light: 12/12 (~600 PPFD)
Humidity: ~45%
Temp: 70–77°F
Nutrients: Continue bloom + Cal-Mag

🌱 Tips

Minimal defoliation, focus on airflow
Support budding branches as needed

Week 7: Bud Fattening & Aroma Surge

✅ What to Expect

Height: 24–28 in, stretch stabilizes
Buds: Firming, stacking, and dense appearance
Trichomes: Noticeable frost layer
Smell: Sweet berries with piney and spicy undertones

A visual showing early cannabis bud development small white pistils, forming calyxes, and early trichome frost

🌡️ Environment Targets

Light: 12/12 (~700 PPFD)
Humidity: 40–45%
Temp: 68–75°F
Nutrients: Maintain bloom; optional terp boosters

🌱 Tips

Support heavy buds with stakes
Watch for burn, trim feeding if tip burn shows

Week 8: Peak Flower & Ripening Begins

✅ What to Expect

Height: 30–34 in final canopy height
Buds: Dense, trichome-rich, stacking well
Pistils: Begin turning orange
Trichomes: Mostly cloudy, some amber

🌡️ Environment Targets

Light: 12/12 (~700–800 PPFD)
Humidity: ~40%
Temp: 67–73°F
Nutrients: Reduce nitrogen, boost P & K

🌱 Tips

Monitor trichomes daily with a loupe
Be patient, full flavor peaks closer to harvest

Week 9: Final Flush & Ripeness Check

✅ What to Expect

Buds: Heavy, resinous, aromatic
Trichomes: Majority cloudy with amber highlights
Pistils: 60–80% darkened
Smell: Sweet berries, pines, and spice at max potency

🌡️ Environment Targets

Light: Keep 12/12 until harvest
Humidity: 35–40%
Temp: 65–70°F
Water: Flush with pH’d water 5–7 days before harvest

🌱 Tips

Harvest when your desired trichome ratio is met
Cooler late temps help preserve terpenes and color

Harvest & Curing

Harvest mid-October outdoors or at week 9 indoors.
Dry at ~60°F / 55% RH for 10–14 days in darkness.
Cure in jars, burping daily for the first week.
After 3–4 weeks of curing, enjoy a full-bodied berry, pine, and sweet experience with relaxing yet uplifting effects.

Final Thoughts on Growing Blue Dream Seeds

Blue Dream delivers a reliable, creative high paired with gentle relaxation—perfect for day use. Its tall, vigorous structure rewards training and patience with abundant yields and exceptional flavor.

If you’ve been exploring how to grow Blue Dream strain, this step-by-step diary has everything you need to succeed.

👉 Shop Blue Dream seeds at Hypno Seeds
👉 Browse more Sativa Seeds