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Dr J
Feminized
Dr J blends Jack Herer and Blueberry genetics to produce a balanced hybrid. It delivers focused uplift alongside relaxed body effects. Flowering runs 8 to 9 weeks indoors with medium-high yields. The strain suits growers with intermediate skills and those growing in Canadian temperate summers. MasterSeeds offers feminized packs for home growers planning steady, reliable harvests.
- Doctor, Jack, Hybrid
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STRAIN PROFILE
Complete Cannabis Strain Specifications
| Trait | Value |
|---|---|
| Type | Hybrid |
| THC | 18-22% |
| CBD | 0.5-1% |
| Grow Difficulty | Intermediate |
| Flowering Time | 8-9 |
| Yield | Medium-high (450-550 g/m2 indoor) |
| Height | Medium (80-140 cm indoor) |
| Environment | Indoor and outdoor |
| Effects | Uplifting, Focused, Relaxed |
| Flavors | Earthy, Citrus, Berry |
| Genetics | Jack Herer x Blueberry |
| Climate | Temperate and continental (BC, Ontario, Prairies) |
Dr J Strain Information and Characteristics
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Strain Type:
Dr J is a balanced hybrid with both indica and sativa traits. Canadian growers describe it as a versatile daily hybrid.
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THC Content:
THC sits around 18 to 22 percent for Dr J. That level matches many popular Canadian daytime hybrids.
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CBD Content:
CBD remains low at about 0.5 to 1 percent. Medical users in Canada report benefit from the low CBD and higher THC balance.
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Grow Difficulty:
Growing Dr J requires intermediate skills and steady feeding. You should watch training and humidity under Canadian light cycles.
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Flowering Time:
Indoor flowering runs about 8 to 9 weeks. Outdoor growers in Ontario often finish by late September.
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Expected Yield:
Indoor yield rates reach medium-high at roughly 450 to 550 g per square metre. Greenhouse growers in BC report steady production.
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Plant Height:
Plants reach medium height of 80 to 140 centimetres indoors. Expect taller specimens outdoors in long summer regions.
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Growing Environment:
Dr J suits both indoor and outdoor setups. It performs well in greenhouse conditions across several Canadian provinces.
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Expected Effects:
Dr J delivers uplifted energy that sharpens focus while easing tension. Many Canadian consumers prefer it for daytime tasks.
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Genetic Lineage:
Genetics read Jack Herer x Blueberry for Dr J. MasterSeeds selected this cross to balance cerebral lift with body ease.
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Seed Type:
Dr J comes as feminized seed packs for home growers. Seed sellers in Canada list feminized options for easy crop planning.
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Preferred Climate:
Best climate includes temperate and continental summers with warm days and cool nights. It thrives in BC and Ontario growing seasons.
Frequently Ask Questions
Everything you need to know about this strain.
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Questions & Answers
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Q: My plants stretch after flip. What now?
A: Reduce final stretch with earlier light schedule change and a short defoliation. Support taller branches with stakes.
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Q: Leaves show tip burn. Fix?
A: Flush medium and adjust nutrient strength down by 10 to 20 percent. Check EC and pH each feed.
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Q: How do I prevent mildew in humid areas?
A: Increase airflow and lower humidity during bud swell. Use a fan and open vents in the greenhouse daily.
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Q: Should I top or fim Dr J?
A: Top once or fim early to promote even canopy. Follow with low stress training for lateral growth.
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Q: When to start bloom nutrients?
A: Switch to bloom formula at first visible pistils. Reduce nitrogen and raise phosphorus and potassium.
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