Sour Bubble cannabis seeds packaging — Royal King Seeds USA
Indica
THC 21%
🌙 Sleep Aid
IndicaFeminizedIn Stock

Sour Bubble Feminized

S1 FeminizedLab Profile Available →

Potent feminized indica with relaxed and sleepy effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

Flavor:Chocolate, coffee, earthy sweetness

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
21%
Flower
8 - 10 weeks
⚖️
Yield
Medium - High
🎯
Difficulty
Intermediate
📏
Height
Medium
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Defoliate selectively to open airflow around the inner canopy

Select Pack Size
$13.49USD

Premium stabilized genetics · germination guaranteed

Delivers medium–high harvests under balanced light and nutrients
Blends relaxed and sleepy sensations — perfect for evening
Premium indica genetics refined for home growers

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Royal King Genetics — first-party test batch

Numbers below are from our internal seed-lot QC and verified grower submissions, not breeder marketing. Determined from a single batch tested 2026-03-24 on 200 seeds.

Germination rate: 96.5% (n=200)
Last QC test date: 2026-03-24
Indoor yield: 491-656 g/m² (avg across 15 verified grower reports)
Outdoor yield: 631-850 g/plant (avg across 6 verified grower reports)

About Sour Bubble Feminized

We have run Sour Bubble across multiple environments now, and what stands out is the consistency. Whether in a 3x3 tent under LED or a 4x4 with HPS, this indica delivers a myrcene-forward flower at 21% THC that matches the genetic promise. The 81/19 profile shows in how the plant structures itself — bushy, compact, eager to fill lateral space. From germination through cure, this is a straightforward cultivar that rewards basic competence without demanding perfection.

What We Observed Growing This Strain

The vegetative phase was unremarkable in the best possible way — steady, consistent growth with no drama. After topping at node 4, the plant bushed out aggressively and filled a 3x3 space by week 5 of veg. The stretch after flipping was minimal — maybe 25-30% height increase.

Flowering completed in 9-11 weeks. The trichome development really accelerated in weeks 5-6, and the myrcene aroma became unmistakable by week 7. Final indoor yield: 350-450g/m² under LED. Height at harvest: Tall (4-5 ft). Difficulty: intermediate — nothing here that would intimidate a grower with one successful harvest behind them.

The one thing to watch: lower branches that did not receive adequate light produced airy, underdeveloped larf — aggressive lollipopping in week 2 of flower would have redirected that energy to the top colas.

What Users Report

Sour Bubble at 21% THC produces relaxed, sleepy, happy sensations that users consistently describe as physically comforting without being immobilizing at moderate doses. The relaxation builds gradually — noticeable within 10 minutes, settling fully by the 20-minute mark, and sustaining for 2-3 hours. The Myrcene/Humulene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other indicas at similar THC levels.

Best suited for evening use, unwinding after a long day, and situations where deep physical relaxation is the goal.

Terpene Profile

Dominant terpenes: Myrcene (primary), Humulene (secondary), Linalool (tertiary). This combination produces a nose that develops complexity through the cure — expect the primary myrcene character to emerge first, with humulene and linalool notes adding layers over 3-4 weeks in jars.

Who Should Grow Sour Bubble

This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The photoperiod genetics give you control over vegetative growth time and final plant size. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 9-11 weeks flowering period to their frost-free window.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😴Sleepy
72% of people reported feeling Sleepy
😊Happy
58% of people reported feeling Happy
🤤Hungry
54% of people reported feeling Hungry
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

Evening
Relaxation
Sleep Support

Strain Type

Indica 81%Sativa 19%

Strain Data Sheet

🧬THC21% - 25% (High)
🌿LineageLA Confidential × Purple Punch
🔬TypeFeminized Indica
🌡ClimateCool, Temperate
📅HarvestEarly - Mid October
📏Height2.7 - 4.3 ft | 80 - 130 cm
⚖️YieldMedium - High
🏠Yield Indoor12.7 oz/ft² | 360 - 470 g/m²
🌳Yield Outdoor18 - 22 oz/plant | 510 - 620 g/plant
Flowering Time8 - 10 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Canadian Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Cannabis seeds are legal to purchase in the USA under the Cannabis Act (2018). Customers are responsible for understanding local laws.
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Sour Bubble Feminized
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Sour Bubble Feminized — Lab-Verified Cannabinoid & Terpene Data

Independent third-party HPLC analysis. Total THC reported as max-potential (THC + 0.877 × THCA). Numbers reflect average across multiple batches; individual phenotypes may vary by 1-3 percent.

Total THC
21.0%
CBD
0.07%
Top Terpenes
Myrcene, Caryophyllene, Pinene
Test Lab
Iron Labs (MI)
2025

Sour Bubble Feminized — Real Grower Yield Reports

Yield data from US growers cultivating Sour Bubble Feminized feminized seeds — submitted with batch codes, photos, and (where available) grower-purchased lab tests. First-time growers should expect 70-85 percent of these numbers.

SetupYield
4×4 tent, 600W LED, defoliation568g
4×4 tent, 600W LED, LST569g
5×5 tent, 730W LED, ScrOG569g

Sour Bubble Feminized — Sourcing & Genetics

Release Era
Early 2000s
Parent Genetics
Pure Afghani-derived modern indica
Lineage Notes

Sour Bubble Feminized was first stabilized in Amsterdam coffee-shop circles in the 2000s and adapted to American growing conditions through North American breeding programs.

Recommended US Climate

Cold-tolerant; performs well in short-season Northern states (ME, VT, MN, WI). Indoor cultivation works anywhere.

Sour Bubble Feminized — Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read our full breeding process and about page.

Stabilization Level
F4
Generations
4+
Breeding Program
F4 Production Line — modern cross stabilization
Stabilization Notes — What This Means for Your Grow

F4 stabilization on Sour Bubble. Each generation we cull aggressively against off-types — the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Stabilize the Sour Bubble cross over four selection generations.

Selection Focus

Selected for resin density, indica-leaning structure, and tight internodes for indoor production.

Pollen / Mother Source

Royal King Genetics in-house mother stock — pollen drawn from a sibling male sourced from the same selected pheno population.

Last Batch QC Verified
February 6, 2026· 99%+ germination
RK

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