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Blue Tartz

Feminised

Blue Tartz is an indica-dominant hybrid with pronounced blueberry and tart citrus notes, suited to humid indoor grow rooms and controlled greenhouse setups.

Why choose Blue Tartz?
  • Compact plants, heavy resin.
  • Distinct blueberry flavour with a tart finish.
  • Performs well in controlled humid indoor grow rooms.
THC 18-22%
CBD 0.50%
Lineage Blueberry x Tartz
Genotype Indica-dominant hybrid
Difficulty Intermediate
Flowering 8-9 weeks
Height Short to medium (80-120 cm)
Yield Medium-high (approx. 400-500 g/m² indoor)
Taste Blueberry, Citrus tart, Earthy
Seed Type Feminised
Climate Humid Indoor Grow Rooms
Effects Relaxed, Uplifted, Sleepy
Environment Indoor and greenhouse

About Blue Tartz

Blue Tartz is an indica-leaning hybrid bred from Blueberry x Tartz that produces compact, resin-heavy buds with a strong berry aroma and a tart citrus edge. It performs well indoors and in greenhouses, but requires disciplined humidity control and airflow to avoid mould, especially in regions like Norfolk where humidity can be a challenge; growers who manage RH and canopy density will be rewarded with medium-high yields and pronounced terpene profiles.

Grow Difficulty:

Under humid indoor grow rooms Blue Tartz needs vigilant humidity control and steady airflow to avoid mould. It is best described as an intermediate variety that responds well to topping and canopy management.

Flowering Time:

Flowering usually completes in eight to nine weeks under stable conditions. Allow the full period for peak trichome development and terpene preservation.

Yield:

Indoor yields are medium to high with good canopy training, often reaching around 400–500 g/m². Outdoor and greenhouse results depend heavily on season length and ventilation.

Height:

Plants remain compact, generally between 80 and 120 cm, making them suitable for limited-height grows. The structure produces tight colas with productive side branches.

Environment:

Indoors it performs reliably in controlled rooms and suits growers in Norfolk who run humid or ventilated setups. Outdoors or in greenhouses in Norfolk it benefits from late-season drying to avoid mould.

Climate:

In Norfolk, humid indoor grow rooms demand strict humidity control to prevent bud rot and mildew when cultivating Blue Tartz. Keep relative humidity under 50 per cent in late flowering and use dehumidification and strong airflow to protect trichomes and terpene 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
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
I'm running two small tents in Norfolk; how many plants per tent?
A
Verified answer
For compact plants like Blue Tartz, two to four per 1.2 x 1.2 m tent lets you train each plant for even canopy coverage.
Common question Posted by Urbanseedbank Answered
Q
My room is humid; any quick fixes?
A
Verified answer
Increase ventilation, add a dehumidifier and reduce watering frequency; aim for steady air exchange to keep humidity in check.
Common question Posted by Urbanseedbank Answered
Q
What light schedule for flowering?
A
Verified answer
Switch to 12/12 for flowering and keep a consistent dark period; avoid light leaks which can stress plants and cause re-vegging.
Common question Posted by Urbanseedbank Answered
Q
Any tips for maximising berry flavour?
A
Verified answer
Finish with slightly lower temps and avoid excessive flushing of terpenes; gentle curing in a cool, dark place preserves the berry profile.
Common question Posted by Urbanseedbank Answered
Q
When should I start defoliation?
A
Verified answer
Begin light defoliation after the third node in veg and reduce it as flowers swell to avoid exposing buds to mould in humid conditions.

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