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Tsunami

Feminised

Tsunami is a sativa-dominant hybrid bred for cooler coastal regions and steady daytime effects.

Why choose Tsunami?
  • Built for cooler coasts and late seasons.
  • Citrus top notes with a pine finish.
  • Balanced daytime energy and calm focus.
THC 18-22%
CBD <1%
Lineage Tsunami OG x Coastal Haze
Genotype Sativa-dominant hybrid
Difficulty Moderate
Flowering 8-10 weeks
Height Medium to tall, 1.2-2.0 m outdoor
Yield 350-500 g/m² (outdoor)
Taste Citrus, Pine, Earthy
Seed Type Feminised
Climate cool Scottish outdoor climate
Effects Energetic, Relaxed, Focused
Environment Indoor and outdoor

About Tsunami

Tsunami is a robust sativa-dominant hybrid designed for growers in cooler, wind-exposed locations. It combines lively cerebral effects with a calm focus and carries citrus and pine notes. The strain performs best with shelter from salt spray and good airflow, making it well suited to coastal and northerly gardens. Yields are reliable when plants receive protection and steady feeding, and seeds are feminised for straightforward cultivation.

Grow Difficulty:

Growing Tsunami outdoors in a cool Scottish outdoor climate requires careful site selection and wind protection. It is moderately demanding but responds well to basic training and attentive feeding.

Flowering Time:

Indoor flowering finishes in around eight to ten weeks. Outdoors expect harvest readiness late in the season with potential for a short extension in cool zones.

Yield:

Yields are medium to high when plants get full sun and shelter from salt-laden winds. Under good conditions expect roughly three hundred and fifty to five hundred grams per square metre outdoors.

Height:

Plants develop a tall, airy structure with long internodes and a pronounced central cola. Outdoor specimens often reach between 1.2 and 2.0 metres in sheltered sites.

Environment:

Indoors Tsunami responds well to SCROG and SOG setups for controlled height in Birmingham grows. Outdoors in Birmingham it benefits from a sheltered, south-facing position to avoid persistent coastal winds.

Climate:

In Birmingham this strain performs best when given extra protection against damp and salt spray in a cool Scottish outdoor climate. A greenhouse or polytunnel will reduce rot risk and extend the season.

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
Should I use a greenhouse in Birmingham?
A
Verified answer
Yes, a greenhouse helps control moisture and wind while extending the season.
Common question Posted by Urbanseedbank Answered
Q
How many plants per square metre indoors?
A
Verified answer
Two to four plants under a SCROG net gives good canopy coverage without overcrowding.
Common question Posted by Urbanseedbank Answered
Q
What training method did you find best?
A
Verified answer
A mix of topping and low-stress training kept height manageable and improved yields.
Common question Posted by Urbanseedbank Answered
Q
Any specific soil mix advice?
A
Verified answer
Use a well-draining, airy soil with added perlite and a touch of lime to keep pH stable in cool conditions.
Common question Posted by Urbanseedbank Answered
Q
Do you feed differently in cool weather?
A
Verified answer
Yes, reduce feed strength slightly and avoid high nitrogen late in the season to prevent stretch and delay ripening.

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