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  • Uplifting, Spicy, Energetic
Jack Flash Feminized Seeds Packaging

Jack Flash Feminized Seeds

Jack Flash Feminized Seeds by Captain Seeds - Sativa-leaning hybrid with 20% THC, citrus-pine flavor, and energetic, creative effects.

  • HighLights:
  • Energetic cerebral high
  • Citrus and spice aroma
  • Reliable medium-high yields

Jack Flash offers a sativa-leaning high with focused uplift and steady energy. Expect 8 to 9 week flowering and medium-high yields. Plants show moderate stretch and respond well to topping, LST, and SCROG. Flavor highlights include citrus, pine, and spicy notes. Use balanced nutrients in veg and boost P and K in flower. Best for warm, Mediterranean climates but performs indoors with proper control.

Jack Flash Feminized Seeds Quick Facts

All the essential strain details at a glance for growers and users.

Property Value Description
type Type Sativa-leaning hybrid This strain is a sativa-leaning hybrid with a clear cerebral lift.
thc THC Content 20% Average THC sits around 20%.
cbd CBD Content 0.20% CBD stays low at about 0.2%.
difficulty Grow Difficulty Intermediate Grow difficulty rates as intermediate. Expect steady growth and moderate stretch.
time Flowering Time 8-9 Flowering runs 8 to 9 weeks indoors.
yield Yield Medium-High (450-550 g/m² indoor, 400-700 g/plant outdoor) Indoor yield ranges 450 to 550 g per square meter. Outdoor yield reaches 400 to 700 g per plant.
height Height Medium (80-150 cm) Plants reach 80 to 150 cm. Train early to control height.
indoor outdoor Environment Indoor and outdoor Performs indoors and outdoors. Use SCROG indoors for even canopy and higher yields.
effects Effects Uplifting, Creative, Energetic You will feel uplifted and focused. Creativity rises and energy stays high.
flavors Flavor Profile Citrus, Pine, Spicy Flavor hits citrus and pine with a sharp spicy aftertaste.
genetics Genetics Jack Herer x Northern Lights Genetics list Jack Herer x Northern Lights.
climate Climate Warm, Mediterranean Prefers warm, Mediterranean climates with a dry finish during late flower.

Frequently Asked Questions

Answers to Common Questions About Growing Jack Flash Cannabis Seeds

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Customer Questions & Answers

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Q: My plants stretch too much in early flower. What do I do?
A: Raise light intensity and distance. Add a top and implement LST before full stretch. Use SCROG to hold colas.
Product Information • Posted by ElCapitan
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Q: Leaves show nitrogen deficiency. How to respond?
A: Increase nitrogen during veg with a balanced feed. Check pH 5.8-6.3 and adjust nutrient strength slowly.
Product Information • Posted by ElCapitan
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Q: Bud density is loose. How to improve trichome and density?
A: Raise daytime temps to 24-26°C, boost P and K in mid to late flower, and keep stable humidity 40-50%.
Product Information • Posted by ElCapitan
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Q: How do I cut smell during flower?
A: Install a carbon filter, seal the tent, and run steady airflow. Final-week flush reduces residue smell.
Product Information • Posted by ElCapitan
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Q: When should I flush before harvest?
A: Flush with plain water for 7 to 10 days before harvest to improve smoke smoothness.
Product Information • Posted by ElCapitan

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