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Sour Tsunami

Feminised

Sour Tsunami is a CBD-rich hybrid prized for therapeutic use and a restrained, clear-headed effect.

Why choose Sour Tsunami?
  • High CBD, low intoxication
  • Compact plants ideal for small spaces
  • Reliable structure for SCROG and controlled environments
THC Low (approx. 3–6%)
CBD High (approx. 8–12%)
Lineage Sour Diesel x The Tsu
Genotype CBD-dominant hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Short to medium (60–120 cm)
Yield Moderate
Taste lemony citrus, diesel, earthy pine
Seed Type Feminised
Climate cool Highland growing conditions
Effects mild euphoria, clear-headed focus, deep relaxation
Environment Indoor or outdoor

About Sour Tsunami

Sour Tsunami is a CBD-oriented hybrid developed for medical users and growers who want predictable, low-intoxication results. It combines sour citrus and diesel notes with resinous, compact buds and performs well in modest spaces when trained and protected from damp conditions.

Grow Difficulty:

Growing Sour Tsunami in cool Highland growing conditions requires close attention to airflow and humidity control. It is an intermediate challenge that rewards training and protection from damp.

Flowering Time:

Flowering normally takes 8 to 10 weeks indoors. Outdoors it usually finishes late in the season with careful site choice.

Yield:

Yield is moderate with dense, resinous buds under stable conditions. Indoor growers can achieve solid returns by training and optimising light.

Height:

Plants remain relatively compact, which suits constrained spaces. Expect a final height commonly between 60 and 120 cm.

Environment:

It suits both indoor rooms and outdoor plots in Cornwall when given good drainage and sunlight. Indoors it performs well in SCROG or SOG setups and outdoors you should site it where it gets the most afternoon sun in Cornwall.

Climate:

In Cornwall, growers should expect a longer ripening window when working with cool Highland growing conditions. Cold nights can slow trichome development so consider greenhouse or polytunnel protection to secure consistent cannabinoid profiles.

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
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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 do you prevent bud rot in a Cornwall outdoor grow?
A
Verified answer
I use good spacing, avoid dense foliage, and put up a simple cover for late-season rain to reduce moisture around buds.
Common question Posted by Urbanseedbank Answered
Q
What light schedule do you use indoors?
A
Verified answer
I run 18/6 for veg and switch to 12/12 for flowering, adjusting intensity to keep canopy temps stable.
Common question Posted by Urbanseedbank Answered
Q
Do you top or FIM Sour Tsunami?
A
Verified answer
I top once early and then use low-stress training to create an even canopy without causing too much stress.
Common question Posted by Urbanseedbank Answered
Q
How often do you feed during flower?
A
Verified answer
I feed lighter than veg, focusing on PK boosts mid-flower and watching leaf colour for any imbalances.
Common question Posted by Urbanseedbank Answered
Q
Would you recommend a greenhouse for cool Highland conditions?
A
Verified answer
Yes, a greenhouse gives better temperature control and guards against late-season rain while still allowing ventilation.

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