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Birthday Runtz
Feminized
Birthday Runtz blends dessert sweetness with potent effects and compact structure. Genetics trace to Runtz x Birthday Cake for fruity terpenes and heavy resin. Expect 24-28% THC and low CBD under 1%. Growers rate it intermediate and report strong responses to training and steady feeding. Keep airflow high in late bloom to reduce mould risk.
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STRAIN PROFILE
Complete Cannabis Strain Specifications
| Trait | Value |
|---|---|
| Type | Indica-dominant hybrid |
| THC | 24-28% |
| CBD | 0.3-1% |
| Grow Difficulty | Intermediate |
| Flowering Time | 8-9 |
| Yield | Medium-High (450-550 g/m² indoor) |
| Height | 60-120 cm |
| Environment | Indoor and Outdoor |
| Effects | Euphoric, Relaxing, Uplifting |
| Flavors | Sweet, Creamy, Fruity |
| Genetics | Runtz x Birthday Cake |
| Climate | Temperate to Mediterranean |
Birthday Runtz Strain Information and Characteristics
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Strain Type:
Birthday Runtz is an indica-dominant hybrid with a candy-forward profile. It suits growers who prefer compact, resinous plants.
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THC Content:
Flower tests typically show THC in the mid to high twenties. Those levels place Birthday Runtz among potent hobbyist strains.
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CBD Content:
CBD levels remain low and usually stay under 1%. Low CBD means therapeutic use relies mainly on THC for symptom relief in some medical programs.
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Grow Difficulty:
Grow difficulty rates as intermediate for most setups. You need steady pruning and nutrient control to reach top resin production.
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Flowering Time:
Photo period plants finish in 8 to 9 weeks of flowering. Outdoor harvest in cooler regions often lands in late September to October.
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Expected Yield:
Yields run medium to high with good feeding and light. Indoor growers report around 450-550 g/m² under optimized light.
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Plant Height:
Plants hold a medium height and form dense colas. Expect roughly 60-120 cm indoors and taller growth outdoors.
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Growing Environment:
Birthday Runtz works well indoors and outdoors. It responds strongly to SCROG and low-stress training.
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Expected Effects:
Initial effects bring a bright, euphoric lift that eases stress. Later relaxation settles the body while leaving the head clear.
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Genetic Lineage:
Genetics trace to Runtz x Birthday Cake. The mix yields fruity terpenes and strong resin production.
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Seed Type:
Seeds are sold as Feminized for predictable female plants. This type suits growers who want stable phenotype runs.
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Preferred Climate:
Best climate is temperate to Mediterranean with warm, dry summers. Plants handle short wet spells when kept airy and well spaced.
Frequently Ask Questions
Everything you need to know about this strain.
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Questions & Answers
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Q: When should I top for best results?
A: Top after 3-4 nodes to promote multiple main colas and an even canopy.
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Q: When should I flush before harvest?
A: Flush in the final 7-10 days prior to harvest to clean up residual salts.
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Q: What veg light schedule works well?
A: Use 18/6 for steady veg or 24/0 for faster stretch control.
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Q: How do I prevent bud rot?
A: Increase ventilation, keep RH low in late bloom, and remove inner fan leaves to improve airflow.
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Q: What harvest signs should I watch?
A: Harvest when trichomes turn mostly milky with some amber and pistils shift to rust orange.
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