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Lemon Jack

Feminised

Lemon Jack is a zesty sativa-dominant hybrid offering clear, uplifting effects and bright citrus flavour.

Why choose Lemon Jack?
  • Bright lemon aroma that cuts through jars
  • Reliable performer in mild southern climates
  • Energetic, focused high suited to daytime use
THC 18-22%
CBD 0.5-1%
Lineage Jack Herer x Lemon Skunk
Genotype Sativa-dominant hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Medium-tall
Yield Medium-high (approx. 400-500 g/m2 indoor)
Taste Lemon, Pine, Earthy
Seed Type Feminised
Climate Mild southern growing climate
Effects Energetic, Uplifting, Focused
Environment Both

About Lemon Jack

Lemon Jack is a sativa-dominant hybrid bred from Jack Herer x Lemon Skunk that delivers a lemon-led terpene profile and a clear, energetic high. It suits intermediate growers in mild climates who want a reliable outdoor performer or a controllable indoor plant with strong flavour and focused effects.

Grow Difficulty:

Growing Lemon Jack is intermediate in difficulty and benefits from steady conditions in a mild southern growing climate in Down. It tolerates minor mistakes but needs regular pruning and attention to humidity.

Flowering Time:

Flowering usually takes eight to ten weeks under good conditions. Outdoor plants in a favourable season often finish toward the earlier end of that range.

Yield:

Yields are medium to high when plants are trained and fed properly. Indoor growers can expect around 400–500 g/m2 while outdoor specimens yield well in fertile soil.

Height:

Plants are typically medium-tall with an open, branching structure. They form long colas suited to SCROG or LST techniques.

Environment:

Lemon Jack performs well both indoors and outdoors in Down when humidity is managed. Indoor grows allow precise control while outdoor plants make the most of the mild season in Down.

Climate:

In Down's mild southern growing climate Lemon Jack flowers reliably with reduced frost risk. Growers should still watch for late-season rain and fungal pressure.

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
How often should I water outdoor Lemon Jack in summer?
A
Verified answer
Water when the top 3-5 cm of medium is dry; frequency will depend on pot size and local sun exposure.
Common question Posted by Urbanseedbank Answered
Q
Do I need to defoliate?
A
Verified answer
Light selective defoliation around week three of flowering helps airflow without shocking the plant.
Common question Posted by Urbanseedbank Answered
Q
Which training method suits Lemon Jack best?
A
Verified answer
LST or a light SCROG yield even bud development and good canopy light penetration.
Common question Posted by Urbanseedbank Answered
Q
What's the ideal humidity in flower?
A
Verified answer
Aim for 40-50% RH in late flowering to limit mould while keeping trichomes healthy.
Common question Posted by Urbanseedbank Answered
Q
Any tips for organic outdoor grows?
A
Verified answer
Use rich compost, worm castings and regular foliar feeds early in the season, then focus on phosphate-rich feeds in bloom.

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