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Forbidden Runtz

Feminised

Forbidden Runtz is an indica-dominant hybrid known for sweet candy flavours and a potent, balanced high.

Why choose Forbidden Runtz?
  • Sweet candy flavour with a berry finish
  • Great greenhouse performer when humidity is controlled
  • Balanced cerebral lift with gentle body relaxation
THC 20-24%
CBD <1%
Lineage Forbidden Fruit x Runtz
Genotype Hybrid (Indica-dominant)
Difficulty Intermediate
Flowering 8-9 weeks
Height Medium (80-140 cm)
Yield Medium-high (up to 500 g/m² indoors)
Taste Sweet candy, Citrus, Berry
Seed Type Feminised
Climate moist western coastal
Effects Euphoric, Relaxed, Focused
Environment Greenhouse / Outdoor

About Forbidden Runtz

Forbidden Runtz is an indica-dominant hybrid bred from Forbidden Fruit and Runtz that delivers sweet candy and berry terpenes with a clear yet relaxing high. It suits greenhouse cultivation in the UK where humidity and temperature can be managed, and responds well to training and attentive canopy management. Growers in coastal regions such as Swansea should prioritise ventilation and dehumidification to avoid bud rot, and can expect medium to high yields with an eight to nine week flowering period. The strain is best grown from feminised seed and favours experienced beginners to intermediate growers willing to manage moisture and pests carefully.

Grow Difficulty:

Under a moist western coastal climate the plant demands attentive mould prevention and good airflow to thrive. Growers with moderate experience will find it manageable if ventilation and pruning are prioritised.

Flowering Time:

Flowering typically completes in eight to nine weeks under stable conditions. A minority of phenotypes may finish slightly earlier or need an extra week to fully mature.

Yield:

Yields are medium to high when grown in a controlled greenhouse, and well-fed plants can reach around 500 g per square metre indoors. Outdoor crops in Swansea can produce generous harvests provided late-season rainfall is minimal.

Height:

Plants generally remain medium in height with a sturdy central cola and productive side branches. Training methods such as topping and low-stress techniques respond well and improve light penetration.

Environment:

In Swansea this variety performs particularly well in a greenhouse where humidity and temperature can be moderated. Outdoors in Swansea it can flourish in a dry late summer but requires vigilance against rot.

Climate:

Growing Forbidden Runtz in Swansea requires extra care because of the moist western coastal climate and the increased risk of bud rot. Practical measures such as dehumidifiers, good ventilation and careful canopy management are essential.

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 started to show grey mould, what now?
A
Verified answer
Remove affected material immediately, increase ventilation and lower humidity, and harvest early if rot is widespread to protect the rest of the crop.
Common question Posted by Urbanseedbank Answered
Q
How often should I water during bloom?
A
Verified answer
Water when the top few centimetres of medium are dry and adjust by plant size and pot volume, aiming for consistent moisture without waterlogging.
Common question Posted by Urbanseedbank Answered
Q
Is defoliation useful for this strain?
A
Verified answer
Light defoliation to open the canopy can help air circulation and light penetration, but avoid heavy leaf removal late in flowering.
Common question Posted by Urbanseedbank Answered
Q
What training methods give the best yields?
A
Verified answer
A combination of topping early and low-stress training improves bud sites and yields while keeping height manageable in a greenhouse.
Common question Posted by Urbanseedbank Answered
Q
Any tips for maximising terpene retention?
A
Verified answer
Harvest at peak trichome development, dry slowly at cool temperatures, and cure properly to preserve terpenes and flavour.

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