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Romulan Grapefruit

Feminised

Romulan Grapefruit is an indica-dominant hybrid with a bright citrus profile and moderate THC, suited to intermediate growers in damp UK conditions.

Why choose Romulan Grapefruit?
  • Citrus punch with Romulan resin strength
  • Ideal for compact trained canopies
  • Performs well with organic soil care
THC 18-22%
CBD 0.5-1%
Lineage Romulan x Grapefruit
Genotype Indica-dominant hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height 1-1.8 m
Yield Medium (approx 400-450 g/m² indoor)
Taste grapefruit, pine, earthy
Seed Type Feminised
Climate wet Welsh valley
Effects relaxing, uplifting, focused
Environment Indoor/Outdoor

About Romulan Grapefruit

Romulan Grapefruit blends Romulan’s dense, resinous structure with Grapefruit’s sharp citrus terpenes to create a compact, resin-heavy plant that performs well in controlled environments. In Northamptonshire and similar UK regions, growers should prioritise airflow, raised beds or pots and organic soil health to reduce mould risk while preserving flavour and potency.

Grow Difficulty:

This strain suits growers with intermediate experience because it needs careful humidity control in a wet Welsh valley climate. In Northamptonshire extra precautions against mould and rot are advisable.

Flowering Time:

Flowering usually completes within 8 to 10 weeks under stable conditions. Outdoor finishes may extend slightly if autumn is cool or damp.

Yield:

Indoor yields are moderate, typically around 400–450 g/m² when trained and fed correctly. Outdoors it can match indoor totals in a sheltered, well-sited garden.

Height:

Plants stay relatively compact with bushy lateral branching that responds well to LST and SCROG. Final heights commonly range from 1 to 1.8 metres depending on training.

Environment:

Indoors it performs well in controlled tents with dehumidification and air circulation, and can be trained to maximise canopy in Northamptonshire. Outdoors plant in a sheltered spot with morning sun and protection from persistent damp in Northamptonshire.

Climate:

Growing Romulan Grapefruit in Northamptonshire demands vigilant mould prevention because of the wet Welsh valley climate. Choose airy sites, elevate pots or beds and reduce canopy humidity to protect buds in Northamptonshire.

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 buds are showing early signs of grey mould — what now?
A
Verified answer
Isolate the affected branch, increase airflow, remove nearby dense foliage and consider a preventive biological fungicide; harvest early if spread is severe.
Common question Posted by Urbanseedbank Answered
Q
I want to push yield — should I switch to heavy feeding?
A
Verified answer
Increase feeding gradually and monitor runoff EC; in organic systems build soil biology rather than rely on heavy synthetic inputs to avoid salt buildup.
Common question Posted by Urbanseedbank Answered
Q
How much should I top and when?
A
Verified answer
Top once or twice during early veg to promote bushiness, then focus on LST before flowering to create an even canopy.
Common question Posted by Urbanseedbank Answered
Q
Can I grow this strain in pots in Northamptonshire?
A
Verified answer
Yes, but use large, well-draining pots and position them where they will dry between rains to minimise root and bud rot risks in Northamptonshire.
Common question Posted by Urbanseedbank Answered
Q
What finishing touches improve flavour?
A
Verified answer
A gentle flush, slower dry at controlled humidity and a careful cure in glass jars with regular burping will enhance citrus and pine notes.

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