How To Grow Blue Dream: A Complete Guide

Blue Dream has earned its spot in the cannabis hall of fame. I’ve been in the seed game longer than most folks have been dreaming in blue, and have seen growers master this hybrid. I’ve also seen them create more of a “blue nightmare” than a Blue Dream.
Got some premium Blue Dream seeds? Wondering how to grow those frosty, aromatic buds that made this strain famous? You’re in the right place. Let me guide you from seed to harvest. Soon you’ll be dreaming in blue for months.
Understanding Blue Dream: Know What You’re Growing
Let’s talk about what makes Blue Dream special. Unless you’re my uncle Terry, you wouldn’t first jump into a pool without knowing how deep it is. That’s a story for another day.
Blue Dream is a sativa-dominant hybrid. It’s about 60 percent sativa and 40 percent indica. It comes from crossing Blueberry (indica) with Haze (sativa). It got the best traits from both parents. From Blueberry, it gets sweet berry aromas and relaxing effects. It also gets those gorgeous blue hues. From Haze, it gets energetic effects and impressive growth.
Indoors, Blue Dream yields about 1.5 to 2 ounces per square foot. That’s enough to keep you on cloud nine until your next grow.
The flavor profile? Sweet berry notes with hints of vanilla. It has earthy, herbal undertones too. When grown right, the smell is fantastic. Opening your curing jar will fill the room with blueberry scent.
Selecting High-Quality Blue Dream Seeds
Your growing journey starts with high-quality genetics. Cannabis seeds are like dating. Swipe right on seeds with good genes and stable traits. Don’t choose ones that ghost you halfway through the grow.
When picking Blue Dream seeds, look for:
- Dark color with tiger stripes. Good seeds have a dark brown shell with lighter stripes.
- Hardness. Quality seeds feel firm when gently squeezed. Don’t squeeze too hard! They’re not stress balls.
- Waxy sheen. A slight waxy coating means the seed hasn’t dried out.
- Good size and shape. Choose symmetrical, teardrop-shaped seeds. Small or odd-shaped seeds often make weak plants.
I recommend feminized Blue Dream seeds for indoor growing. Unless you want to breed, feminized seeds save you trouble. You won’t find male plants halfway through vegging. It’s like avoiding getting stood up after planning a fancy dinner.
If you’re new to growing, start with 5 to 10 seeds. Not every seed will make it to harvest. Nature has its selection process; some seeds weren’t meant to fulfill their destiny.

Setting Up Your Indoor Growing Space
Creating the perfect environment for Blue Dream is like prepping for houseguests. These guests stay for months. They get more demanding over time. But unlike your in-laws, these guests reward you with beautiful, resinous buds.
Choosing Your Growing Method
For Blue Dream, you have several options:
Soil Growing. Many beginners start here. Blue Dream loves well-aerated, nutrient-rich soil with good drainage. I recommend:
- 70 percent high-quality potting soil
- 15 percent perlite for drainage
- 10 percent worm castings for nutrients
- 5 percent coco coir for water retention
Hydroponics for tech-savvy growers who want max yields. Blue Dream does great in hydro systems. Try Deep Water Culture (DWC) or Drip systems. You’ll see faster growth and bigger yields. But the learning curve is steeper than Mount Everest on a foggy day.
Coco Coir is A middle ground between soil and hydro. Coco offers ease to the soil with hydro growth rates. Blue Dream loves coco. It’s more forgiving than full hydro when you forget to check pH.
Lighting Requirements
Blue Dream needs intense lighting. During the egg stage, give 18 to 24 hours of light daily. During flowering, switch to a 12/12 light/dark cycle.
For a small grow space (2×2 feet), use a 300- to 400-watt LED light. For larger spaces, scale up—a good rule of thumb is to use about 50 watts of actual draw LED per square foot.
Hang your lights at the maker’s recommended height. If plants could talk, they’d want their light like Goldilocks liked her porridge. Not too close (causes burn). Not too far (causes stretching). Just right.
Temperature and Humidity Control
Blue Dream likes a comfy climate. Don’t we all? Maintain these levels:
Vegetative Stage:
- Temperature: 70-85 degrees Fahrenheit during the day; 10 degrees cooler at night
- Humidity: 50-70 percent
Flowering Stage:
- Temperature: 65-80 degrees Fahrenheit during the day; 10 degrees cooler at night
- Humidity: Lower from 50 percent to 30-40 percent by late flowering
Temperature shifts between day and night boost resin production. It’s like giving plants a cold shower to wake them up. They like it.

Air Circulation and Odor Control
Good air flow prevents mold and strengthens stems. Install fans to create a gentle breeze. Make the leaves dance, not headbang.
For odor control, use a carbon filter with an exhaust fan. Blue Dream gets very fragrant. Size your exhaust to exchange air every three minutes unless you want your neighborhood to know about your new hobby.
Germinating Blue Dream Seeds: The First Step to Success
Germination is like a first date. Nerve-wracking but exciting. Here’s my proven method for popping those Blue Dream seeds:
The Paper Towel Method
- Soak your seeds in room temperature water for 12-24 hours.
- Place seeds between damp paper towels on a plate.
- Cover with another plate to create a mini greenhouse.
- Keep in a warm place (75-80 degrees Fahrenheit).
- Check daily and keep the paper towel moist.
- It’s planting time when the taproot emerges (2-7 days).
Direct Planting Method
If you prefer skipping the paper towel dance:
- Prepare small pots with seed-starting mix.
- Make a hole about 0.5 inches deep.
- Place the seed pointy-end down.
- Cover lightly with soil and mist with water.
- Cover with a humidity dome until sprouted.
Handle germinated seeds with extreme care. They’re fragile at this stage. Your clumsy fingers can crush their dreams before they even start.
Vegetative Stage: Building the Foundation
Once seedlings show their first true leaves, they enter the vegetative stage. This is where they build size and strength, like teenagers hitting the gym before prom season.
Lighting for Vegetative Growth
During veg, Blue Dream loves 18 to 24 hours of light. Many growers use 18/6 to save on power bills. Blue Dream responds well to metal halide lights or LEDs with blue wavelengths.
Nutrient Requirements
Blue Dream is a moderate to heavy feeder. If you’re too generous, it can get nutrient burn. Start with nutrients at ¼ to ½ strength, increasing as plants mature.
Focus on nitrogen (N) during this stage. Use moderate levels of phosphorus (P) and potassium (K). An NPK ratio around 3-1-1 or 4-2-3 works well.
If plants could talk, they’d say, “Less is more” with nutrients. You can always add more if they look hungry. Fixing nutrient burn is like trying to unsalt soup—technically possible, but significant pain.
Training Techniques for Maximum Yields
Blue Dream grows tall and somewhat lanky. This makes it perfect for training:
Low-Stress Training (LST): Gently bend and tie down branches. This creates an even canopy and exposes more bud sites to light. Start early when stems are flexible.
Screen of Green (SCROG): Install a screen about 12 inches above your containers. Weave branches through it. This creates a flat canopy that maximizes light use. Blue Dream’s stretchy nature makes it perfect for SCROG.
Topping: When your plant has four to six nodes, cut the top growth tip. This creates two main colas instead of one, resulting in a bushier plant with more bud sites. Blue Dream recovers quickly from topping.
Whatever training method you choose, start early and be consistent. Think of it like teaching a child to eat vegetables—it takes patience and persistence, but the long-term benefits are worth the effort.
Vegetative Timeline
Blue Dream typically needs four to six weeks in the vegetative stage for indoor growing. You can extend this for larger plants or shorten it for a sea of green setup.
Key signs your plants are ready to flower:
- Plants have reached about 1/3 to 1/2 of their final height. Remember, they’ll stretch a lot during early flowering.
- Growth is vigorous with healthy new shoots.
- Roots are well-established. You’ll see roots at the drainage holes.
- Node spacing is tight with whole, healthy fan leaves.

Transitioning to Flowering: The Art of the Flip
Switching from veg to flowering is a key moment. It’s like telling your teenage plants it’s time to grow up and get a job.
The Stretch Period
Blue Dream starts a growth spurt when you change to a 12/12 light cycle. During this “stretch” (two to three weeks), plants may double or triple in height. Plan your grow space well. Or you might play limbo with your lights as plants reach for the ceiling.
To manage the stretch:
- Ensure enough vertical space (at least three to four feet above the current plant height).
- Continue LST or SCROG during the first few weeks of flowering.
- Be ready to adjust the light height often as plants grow.
Changing Nutrient Requirements
As Blue Dream transitions to flowering, nutrient needs shift dramatically. Like a pregnant woman suddenly craving pickles and ice cream. Reduce nitrogen and increase phosphorus and potassium. Use a bloom fertilizer with NPK around 1-3-2 for early flowering. Move to something like 0-5-5 for late flowering.
Micronutrients become more critical now. Calcium and magnesium are crucial during flowering. If your base nutrients lack these, consider adding Cal-Mag.
Humidity and Temperature Adjustments
Allow your humidity to prevent mold and bud rot. By late flowering, aim for 30 to 40 percent humidity, which mimics natural end-of-season conditions and helps develop denser, more resinous buds.
Temperatures should be slightly lower during flowering than during veg. Aim for 70 to 78 degrees Fahrenheit during the day and 65 to 70 degrees at night. These cooler temps can bring out the beautiful purple and blue hues that give Blue Dream its name.

Blue Dream Flowering Stage: Week by Week
The flowering stage is where magic happens. This is when plants transform into resin-coated works of art. For Blue Dream, expect 9 to 10 weeks of flowering. Let’s break it down:
Weeks 1-2: Pre-flowering
What you’ll see: Small white pistils forming at nodes. Slight stretching.
What to do:
- Continue gentle training if needed. Stems become less flexible.
- Keep vegetative nutrients for the first week. Then slowly switch to flowering nutrients.
- Check for light leaks that could stress plants.
Weeks 3-4: Early Flower Formation
What you’ll see: Clear bud sites forming. Stretching continues but slows.
What to do:
- Switch entirely to flowering nutrients (higher P and K).
- Begin reducing humidity slightly (aim for 45-50 percent).
- Remove large fan leaves that block light from lower bud sites.
Weeks 5-6: Mid-Flowering
What you’ll see: Buds getting bigger and denser. More trichome production.
What to do:
- Support branches as buds gain weight.
- Continue with bloom nutrients at the recommended strength.
- Reduce humidity further (40-45 percent).
- Consider adding bloom boosters or PK supplements.
Weeks 7-8: Late Flowering
What you’ll see: Rapid bud development. Pistils beginning to darken. More visible trichomes.
What to do:
- Begin reducing nutrient strength to prepare for flushing.
- Lower humidity to 35-40 percent.
- Check buds carefully for signs of mold or pests.
- Start monitoring trichomes with a jeweler’s loupe or digital microscope.
Weeks 9-10: Ripening and Harvest Window
What you’ll see: Pistils darkening and curling in. Calyx swelling. Trichomes changing from clear to cloudy and eventually amber.
What to do:
- Begin flushing with plain pH-adjusted water.
- Reduce humidity to 30-35 percent.
- Monitor trichomes daily to determine the best harvest time.
- Get your drying area and trimming supplies ready.
Throughout flowering, resist the urge to check your plants constantly. It’s like repeatedly opening the oven to check a cake. It only slows the process. Trust nature to work its magic.
Common Blue Dream Growing Challenges
Growing has its bumps. Here are common issues with Blue Dream and how to fix them:
Nutrient Sensitivities
Blue Dream can be sensitive to nutrient burn. Watch for yellow leaf tips that turn brown, curling leaves, and stunted growth.
Solution: Start with nutrients at 50 percent of the maker’s recommendation and work up slowly. Suppose you see burn signs, flush with pH-adjusted water. Then, reduce nutrient strength.
Height Management
Blue Dream has strong sativa genetics. It can grow very tall, especially during the flowering stretch.
Solution: Use training techniques early. Consider shorter veg periods if your space has limited height. If height becomes an issue during flowering, try gentle super cropping. This means carefully bending stems to create a controlled break-in of inner tissue.
Mold Resistance
Blue Dream is generally resistant to many pests and diseases. However, its dense buds can become moldy and rotted in high humidity.
Solution: Keep good airflow in your grow space. Control humidity during flowering. Consider removing some large fan leaves to improve air circulation through the canopy. Strategic defoliation is like giving your plants a haircut. It might seem odd, but it improves overall health.
Calcium and Magnesium Deficiencies
Blue Dream often shows early signs of calcium and magnesium deficiencies, especially in coco coir or hydro systems.
Solution: Add a Cal-Mag supplement to your feeding schedule, particularly during the transition to flowering and throughout bloom. Watch for rusty spots on leaves or yellowing between leaf veins as early signs.
Harvesting Your Blue Dream
After months of care, it’s harvest time. It’s the cannabis grower’s Christmas morning. Timing is crucial. It affects the final flavor.
Determining the Optimal Harvest Time
Trichomes are your best indicators. Use a jeweler’s loupe or digital microscope (at least 40x magnification) to check them:
- Clear trichomes: Not ready. High will be energetic but less potent.
- Mostly cloudy with some clear (5-10 percent): Early harvest window. More cerebral, energetic effects. This emphasizes Blue Dream’s sativa traits.
- All cloudy with 10-20 percent amber: Peak potency with balanced effects. The sweet spot for most Blue Dream fans.
- 30-50 percent amber: Later harvest. Effects will be more sedating and relaxing. This emphasizes the Blueberry (indica) parent’s traits.
Also, look for these visual cues:
- 70-80 percent of pistils have darkened and curled in
- Calyxes have swollen and feel firm
- Fan leaves begin to yellow and fall off naturally
- Buds have a strong, distinct aroma
Harvest Procedure
- Prepare your area: Clean scissors/shears, gloves, hangingli ne,s or drying racks.
- Cut plants: Either whole plant or branch by branch, depending on your drying setup.
- Initial trim: Remove large fan leaves and severely yellowed leaves. Save sugar leaves for trimming after drying.
- Hang to dry: In a dark room at about 60-65 degrees Fahrenheit with 55-60 percent humidity and gentle air circulation.
Working with freshly harvested Blue Dream is sticky business. Trichome resin will coat your gloves and tools like super glue meets maple syrup. Keep isopropyl alcohol handy for cleaning. Or embrace your sticky fate as a badge of honor.

Drying and Curing: The Final Touches
The finish line is near. But don’t rush—proper drying and curing separate amateur homegrown from connoisseur-grade cannabis.
Drying Your Blue Dream
Proper drying takes patience. About 7 to 10 days for Blue Dream under good conditions. Rush this process, and you’ll get harsh smoke that burns unevenly and lacks flavor, like trying to make fine wine in a blender.
The ideal drying environment:
- Temperature: 60-65 degrees Fahrenheit
- Humidity: 55-60 percent
- Air circulation: Gentle, indirect flow
- Light: Minimal to none
Your buds are properly dried when:
- Small stems snap rather than bend
- Buds feel dry outside, but still have a bit of spring when squeezed
- The chlorophyll smell has faded, letting berry and vanilla notes come through
Curing: Where the Magic Happens
Once dried, it’s time for curing. This process transforms good cannabis into great cannabis. Think of it like aging fine wine or whiskey. Patience brings rewards.
- Place dried buds into glass mason jars, filling them about 75 percent full.
- Seal the jars and store in a cool, dark place.
- During the first week, open the jars (“burping”) for 5-10 minutes twice daily.
- For weeks 2-3, reduce burping to once daily.
- For weeks 4-8, burp jars every 2-3 days.
Blue Dream typically reaches its peak flavor and effect after three to four weeks of curing. Some growers swear by extended cures of six months or longer for truly exceptional results. The berry notes become stronger, and the harsh edges of freshly dried cannabis smooth out into a delightful smoke.
The Final Product: What To Expect From Your Blue Dream Buds
When grown, dried, and cured correctly, your Blue Dream harvest should yield beautiful buds. They’ll be light green with bluish/purple undertones. Densely coated with trichomes. The aroma profile typically features:
- Sweet blueberry and berry notes (dominant)
- Vanilla and sugar undertones
- Subtle pine and earthiness
- A hint of exotic spice
The effects balance cerebral stimulation with physical relaxation. It’s productive and creative without being overwhelming or anxiety-inducing. This versatility has made Blue Dream a staple strain in dispensaries and home grows.
Yields from well-grown indoor Blue Dream typically range from 1.5 to 2 ounces per square foot of canopy space. With optimal conditions and experience, you can push these numbers even higher.
Blue Dream Grow Guide: Conclusion
Growing Blue Dream indoors is both an art and a science. It’s a dance between providing structure and allowing nature to work magic. From tiny seeds to fragrant, sticky buds, the journey brings learning opportunities and plant-parent pride.
Each grow cycle teaches something new, whether your first or fiftieth attempt. Keep detailed notes, learn from mistakes, and celebrate successes. Cannabis cultivation constantly evolves, and there’s always room to improve.
Are you new to growing and feeling overwhelmed? Don’t worry. Break the process into manageable steps. Focus on the basics: quality seeds, proper lighting, good nutrients, and consistent care. The rest will come with experience.
For those who have completed a successful Blue Dream grow, I’d love to hear about your experiences. What techniques worked best for you? Did you discover any Blue Dream-specific tricks? The growing community thrives on shared knowledge. Don’t be shy about notes. Oftes. Of course, if you need premium Blue Dream seeds or any other quality genetics, you know where to find me. At SeedsHer, we’ve been connecting growers with quality genetics longer than some existing strains.
Happy growing, and may your dreams always be blue (in the best possible way)!
Note: This guide is for educational purposes only. Always follow local laws regarding cannabis cultivation in your area.
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