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Jam Sandwich

Feminised

Jam Sandwich is an indica-dominant hybrid known for jammy berry aromas and relaxing effects.

Why choose Jam Sandwich?
  • Jammy berry aroma with heavy resin
  • Compact plants ideal for controlled grows
  • Reliable mid-season finishes in southern England
THC 18-22%
CBD 0.3-1%
Lineage Blueberry x Skunk
Genotype Indica-dominant hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Compact to medium (80-150 cm indoors; up to 150 cm outdoors)
Yield Medium to high (approx. 400-550 g/m² indoor)
Taste Jammy berry, Sweet sugar, Earthy spice
Seed Type Feminised
Climate Temperate southern England
Effects Relaxing, Euphoric, Sedating
Environment Indoor and outdoor

About Jam Sandwich

Jam Sandwich is a compact, resinous indica-dominant hybrid prized for its jammy berry profile and balanced sedative effect. It suits growers who want a strain that combines manageable structure with a punchy, sweet aroma and dependable indoor or sheltered outdoor performance.

Grow Difficulty:

Under a temperate southern England climate Jam Sandwich is intermediate to grow and benefits from attentive feeding and regular training. It tolerates cool spells but needs good airflow and vigilant mould prevention.

Flowering Time:

Flowering commonly completes in 8 to 10 weeks indoors. Outdoors in Surrey it generally finishes by early October when conditions are favourable.

Yield:

Yield is medium to high with proper care, averaging around 400–550 g/m² indoors. Outdoor plants in a sheltered Surrey garden can produce satisfying per-plant weights during a warm season.

Height:

Plants stay relatively compact with a bushy, resin-heavy structure. Expect roughly 80–150 cm indoors and up to 150 cm in well-managed outdoor setups.

Environment:

Indoors, Jam Sandwich responds well to SOG and SCROG and rewards controlled environment setups in Surrey. Outdoors, choose a sunny, sheltered spot to protect buds from damp and late-season rain.

Climate:

Growing Jam Sandwich in Surrey suits the temperate southern England climate when plants receive steady sun and shelter. Constant vigilance during damp autumn weeks is necessary to prevent mould and bud rot.

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 plants look leggy after the seedling stage. What should I do?
A
Verified answer
Increase light intensity and consider topping to encourage a bushier structure and more even canopy.
Common question Posted by Urbanseedbank Answered
Q
When should I start flushing before harvest?
A
Verified answer
Begin a flush of plain water approximately 7–10 days before you expect to harvest to improve smoke smoothness.
Common question Posted by Urbanseedbank Answered
Q
How important is ph control for Jam Sandwich?
A
Verified answer
Maintaining pH around 5.8–6.5 in soil and hydroponic systems prevents nutrient lockouts and supports steady growth.
Common question Posted by Urbanseedbank Answered
Q
Should I use LST or HST on this strain?
A
Verified answer
Low-stress training (LST) is effective to spread out bud sites; high-stress techniques work too but need recovery time.
Common question Posted by Urbanseedbank Answered
Q
What signs indicate ready-to-harvest?
A
Verified answer
Look for mostly cloudy trichomes with some amber, swollen buds, and pistils that have darkened and curled in.

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