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Jack Herer

Feminised

Jack Herer is a sativa-dominant classic known for clear-headed, energetic effects and a pine-citrus flavour profile.

Why choose Jack Herer?
  • Clear-headed energy with pine-citrus aroma
  • Reliable in cool, wet climates with proper care
  • Great for daytime creativity and focus
THC 18-24%
CBD <1%
Lineage Haze x Shiva Skunk
Genotype Sativa-dominant hybrid
Difficulty Moderate
Flowering 8-10 weeks
Height Medium-tall
Yield Medium to high
Taste Pine, Citrus, Earthy
Seed Type Feminised
Climate Cool, wet climates; tolerates autumn rain
Effects Uplifting, Clear-headed, Energetic
Environment Both

About Jack Herer

Jack Herer is a sativa-dominant hybrid prized for its uplifting, focused high and sharp terpene profile of pine and citrus. It performs well both indoors and outdoors, tolerating cooler, wetter conditions better than many pure sativas, though growers in places like York must remain vigilant against mould during a rainy autumn harvest season. With a flowering time of 8 to 10 weeks, moderate yields and a manageable height, Jack Herer suits growers who can provide airflow and timely harvests. The genetics combine Haze clarity with Shiva Skunk stability, producing a strain that rewards attention to training and environmental control.

Grow Difficulty:

Growing Jack Herer in York during a rainy autumn harvest season requires vigilance against mould and bud rot. Plants need good airflow and prompt drying to cope with wet conditions.

Flowering Time:

Flowering usually finishes within 8 to 10 weeks indoors, with some phenotypes leaning faster. Outdoor harvest in the UK often falls into late autumn if weather holds.

Yield:

Yields are medium to high under attentive care, rewarding growers who manage nutrient and light properly. Outdoor plants can produce larger harvests when the summer is warm and extended.

Height:

Plants tend to be medium-tall with an open, conical structure that suits training methods. Branches are sturdy, supporting heavy colas when grown correctly.

Environment:

Indoors, Jack Herer responds well to SCROG and SOG techniques and thrives in controlled environments in York. Outdoors in York, it benefits from a long summer but needs shelter or early strains to avoid late-season rain.

Climate:

In York, growing Jack Herer during a rainy autumn harvest season demands strict attention to mould prevention and canopy management. Its tolerance for cool, wet climates makes it one of the more reliable choices for growers in the UK.

Frequently Asked Questions

Common questions about this strain, covering growth, effects, and suitability for UK conditions.

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Choose seed quantity
Selected: 5 Seeds
£53.33 £40.00
£8.00 / seed • You save £13.33
Accepted payment methods
100% Satisfaction Guarantee • Secured Payments
Urbanseedbank Support

Questions & Answers

Customer questions and answers from the Urbanseedbank team. Submit your own question and we’ll respond after review.

5 questions Answered posts are shown first.
Common question Posted by Urbanseedbank Answered
Q
My Jack Herer is showing signs of bud rot during a wet week in York, what do I do?
A
Verified answer
Remove affected buds immediately, increase ventilation, lower humidity and consider harvesting early if rot is spreading.
Common question Posted by Urbanseedbank Answered
Q
Should I use a dehumidifier in my York grow tent during autumn?
A
Verified answer
Yes, a dehumidifier is advisable in rainy autumn conditions to keep relative humidity below 55% during late flowering.
Common question Posted by Urbanseedbank Answered
Q
What's the best training method for indoor Jack Herer?
A
Verified answer
SCROG works well to manage height and boost even light distribution, while topping encourages multiple main colas.
Common question Posted by Urbanseedbank Answered
Q
How often should I feed Jack Herer in flower?
A
Verified answer
Feed on a moderate schedule, reducing nitrogen in mid to late flower and watching runoff EC to avoid nutrient lockout.
Common question Posted by Urbanseedbank Answered
Q
Any tips for outdoor growers in the UK?
A
Verified answer
Plant in a sheltered spot, use air-pruning pots if possible, and be ready to add temporary covers or move plants under protection if heavy autumn rain arrives.

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