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Cosmic Crisp

Feminised (autoflower options available)

Cosmic Crisp is a sativa-dominant hybrid offering bright citrus flavours, clear cerebral effects and reliable greenhouse performance.

Why choose Cosmic Crisp?
  • Bright citrus terpene profile with a clean finish
  • Performs well in greenhouses with proper ventilation
  • Balanced cerebral lift and gentle bodily ease
THC 18-24%
CBD 0.5-1%
Lineage Nebula x Silver Haze
Genotype Sativa-dominant hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Medium-tall (1.0–2.0 m outdoors)
Yield Medium-high (approx. 400-600 g/m² indoor; 300-400 g/plant outdoor)
Taste citrus, pine, earthy
Seed Type Feminised (autoflower options available)
Climate Damp coastal
Effects uplifting, focused, gentle relaxation
Environment Suitable for greenhouse cannabis cultivation, indoor tents and sheltered outdoor spots

About Cosmic Crisp

Cosmic Crisp combines Nebula and Silver Haze genetics to deliver a lively, citrus-forward experience with focused, uplifting effects. It performs well in controlled environments and benefits from attentive humidity management in damp coastal regions like Surrey.

Grow Difficulty:

Under a damp coastal climate Cosmic Crisp is an intermediate grow that rewards attention to airflow and mould prevention. Growers should prioritise ventilation, frequent inspection and careful leaf maintenance to reduce rot risk.

Flowering Time:

Indoor flowering usually completes in 8 to 10 weeks from the flip. Outdoors, development depends on local light and can finish around late season with proper care.

Yield:

With attentive feeding and canopy control yields are medium to high. Greenhouse runs can approach indoor numbers when humidity and light are well managed.

Height:

Plants develop a central cola with sturdy side branches and can reach medium-tall heights. Expect roughly 1.0–2.0 metres outdoors depending on training.

Environment:

In Surrey Cosmic Crisp performs well in a greenhouse or a controlled indoor environment. Outdoors in Surrey it benefits from a sheltered, well-draining position away from direct sea spray.

Climate:

Growing Cosmic Crisp in Surrey with a damp coastal climate demands robust ventilation and dehumidification to reduce mould risk. Position plants in a raised, free-draining spot inside a greenhouse and prune to improve air movement around bud sites.

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 feel damp after rain in the greenhouse, what now?
A
Verified answer
Increase ventilation immediately, open vents to create a cross-breeze and remove any heavily affected bud sites to stop rot spreading.
Common question Posted by Urbanseedbank Answered
Q
When is best to switch to bloom nutrients?
A
Verified answer
Switch at the first sign of pistils and the stretch phase, usually at week 1 of flowering, then gradually increase bloom feed over two weeks.
Common question Posted by Urbanseedbank Answered
Q
Is a carbon filter necessary in a small Surrey greenhouse?
A
Verified answer
A carbon filter controls odour but ensure extraction also moves humid air out; without proper airflow a filter alone won't prevent mould.
Common question Posted by Urbanseedbank Answered
Q
How often should I defoliate?
A
Verified answer
Light defoliation to improve airflow can be done once at early flowering and again mid-flower, avoiding heavy stress during bud swell.
Common question Posted by Urbanseedbank Answered
Q
Can I keep plants outside in late season here?
A
Verified answer
In Surrey it's possible if you choose a protected spot and monitor weather; be ready to move plants into the greenhouse if autumn damp increases.

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