STRNG Seeds – Jack Flash
$10.00
A citrus-forward variety with earthy and sweet undertones, offering a lively and engaging presence wrapped in a structured and productive plant.
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Jack Flash, developed from the legendary Jack Herer x Super Skunk x Haze, is a variety that embodies a fine balance of flavor, aroma, and growth characteristics. With a rich citrus, lemon, earthy, sweet profile, it captivates from the very first encounter, delivering a sensory experience that evolves over time. Ideal for those who appreciate complexity, this selection is known for enhancing uplifting, happy, creative, sociable moments, making it a versatile choice for different settings.
In cultivation, Jack Flash showcases an impressive growth cycle. Indoors, it flourishes with a yield of Up to 500 gr/m², while outdoor growers can expect up to Up to 600 gr/plant. Its flowering period lasts approximately 9-10 weeks, allowing cultivators to anticipate a rewarding harvest. Structurally, it reaches up to Up to 100 cm when grown indoors, while outdoor plants stretch to 100–180 cm, making it adaptable to various grow environments. The final harvest is typically collected in October, ensuring a well-timed growing season that maximizes potential.
The detailed selection process behind Jack Flash highlights its refined heritage and exceptional breeding. From its robust genetic lineage to its ability to deliver an immersive experience, this variety is a testament to quality and consistency. Whether chosen for its outstanding sensory characteristics or its rewarding cultivation process, Jack Flash remains a go-to option for those who appreciate depth, reliability, and an unmistakable.
We are proudly based in Colorado and all our seeds come from local farmers.
| Genetic Background: | Jack Herer x Super Skunk x Haze |
|---|---|
| THC: | |
| CBD: | Low |
| Sativa: | 45% |
| Indica: | 55% |
| Flavor: | Citrus, Lemon, Earthy, Sweet |
| Effect: | Uplifting, Happy, Creative, Sociable |
| Breeder Location: | Colorado |
| Yield indoor: | Up to 500 gr/m² |
|---|---|
| Yield outdoor: | Up to 600 gr/plant |
| Flowering time: | 9-10 weeks |
| Height indoor: | Up to 100 cm |
| Height outdoor: | 100–180 cm |
| Harvest Month: | October |
Jack Flash is known for its rapid growth, citrus-forward aroma, and vigorous branching, making it a great pick for growers looking for a dynamic photoperiod strain with strong structure.
Yes, it responds well to training and offers rewarding results for those comfortable managing light cycles and nutrient levels.
Jack Flash typically flowers in 9 to 10 weeks indoors, although some phenos may finish slightly earlier under optimized conditions.
It leans into bold citrus and pine notes with earthy undertones, especially prominent in the final weeks of bloom.
It tends to stretch slightly but produces strong lateral branches, making it ideal for topping or training early in veg.
It performs well in both, but indoor growers can better control its stretch and aroma during late flower stages.
Buds from Jack Flash are typically medium-dense with a high resin content and visible calyx structure.
Yes, it thrives with early topping and structured training methods like SCROG or mainlining.
It prefers consistent light exposure, moderate humidity, and slightly warmer temps during bloom.
Yes, expect moderate stretch during the first 2 weeks of flower, especially if vegged aggressively.
Yes, Jack Flash from STRNG Seeds is a feminized variety, producing only female plants when grown properly.
Yes, as a photoperiod strain, it needs a 12/12 light cycle to initiate and maintain the flowering phase.
All seeds are shipped in plain, unbranded packaging with no visible strain names or seed-related wording.
Feminized seeds reduce the risk of males, and Jack Flash’s structure makes it easy to train for even canopy development.
Yes, in regions with long summers, it can produce impressive results when planted early and given full sun.
Use 5 to 7-gallon containers indoors to allow for strong root development and maximize overall yield potential.
Water every 2 to 3 days or when the top inch of soil is dry, depending on humidity and pot size.
Yes, light defoliation in late veg and early bloom improves airflow and light penetration to the lower bud sites.
It prefers a consistent range, especially during bloom. Avoid fluctuations of more than 5°C between day and night.
Yes, it performs well in greenhouses with proper airflow and temperature control through the flowering stage.
| Spend | Get |
| $ 45 | 1 Free Seed |
| $ 100 | 2 Free Seeds |
| $ 150 | 3 Free Seeds |
| $ 200 | 4 Free Seeds |
| $ 250 | 5 Free Seeds |
| $ 300 | 6 Free Seeds |
| $ 350 | 7 Free Seeds |
