Kush XL cannabis seeds packaging, Royal King Seeds USA
IndicaAuto
THC 17%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Kush XL Auto

Auto F4Lab Profile Available β†’

Well-balanced indica autoflower with relaxed and sleepy effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

β—‰Flavor:Hash, pine nut, creamy earth

Best for:πŸŒ™EveningπŸ›‹οΈRelaxation😴Sleep Support
Intermediate Grower
🧬
THC
17%
⏱
Flower
9 - 11 weeks
βš–οΈ
Yield
Medium - High
🎯
Difficulty
Intermediate
πŸ“
Height
Tall
🌱
Grow
Indoor / Outdoor
πŸ’‘

Grower tip: Watch humidity on dense autos, below 50% during flower

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$14.49USD

Premium stabilized genetics Β· germination guaranteed

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

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β˜…Documented performer in grower-community reports
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About Kush XL Auto

The genetic expression of Kush XL, a 68/32 indica, varies meaningfully across phenotypes. Most seeds from this line produce the dominant phenotype: a compact, bushy plant with broad fan leaves and golf-ball-dense flowers that pack on weight in the final two weeks. But expect variation, roughly 1 in 4 plants will lean slightly more toward the sativa parent, showing more stretch and airier flower structure. THC testing at 17% across phenotypes, with Myrcene consistently dominant.

Genetic Expression in the Grow Room

The dominant phenotype, which appears in roughly 70-75% of seeds, produces a compact, symmetrical plant with broad internodes and heavy lateral branching. Fan leaves are wide and dark green, typical of the indica heritage. Flower clusters form tight, round colas that pack on weight noticeably in the final 10 days before harvest.

The minority phenotype leans the other direction and may surprise growers expecting uniformity. Flowering completes in 8-10 weeks across phenotypes. Yield: 350-450g/mΒ² indoor, 500-700g/plant outdoor. Height: Tall (4-5 ft). Rated intermediate, the phenotype variation adds a layer of interest without adding significant difficulty. Growing from regular seeds with autoflowering genetics.

What Users Report

Kush XL at 17% 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 flavor that rewards patience in the cure, the terpene complexity at week 4 in jars is substantially more interesting than the flat, one-note character of a rushed one-week cure.

Who Should Grow Kush XL

This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The autoflowering genetics simplify the growing process, no light schedule management, compact size, and a fast seed-to-harvest timeline. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 8-10 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
πŸ€—Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
πŸ’†Body High
24% of people reported feeling Body High
πŸ˜Άβ€πŸŒ«οΈSedated
21% of people reported feeling Sedated

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 68%Sativa 32%

Strain Data Sheet

🧬THC17% - 21% (Medium-High)
🌿LineageMaster Kush Γ— Bubba Kush
πŸ”¬TypeAutoflower Indica
🌑ClimateAll Climates (Adaptable)
πŸ“…Harvest9 - 11 weeks from seed
πŸ“Height2.9 - 5.2 ft | 88 - 156 cm
βš–οΈYieldMedium - High
🏠Yield Indoor13.0 oz/ft² | 368 - 486 g/m²
🌳Yield Outdoor5 - 13 oz/plant | 138 - 356 g/plant
⏱Flowering Time9 - 11 weeks (seed to harvest)

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Premium US 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.
1
Kush XL Auto
royalkingseeds.us
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πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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Kush XL Auto, Cannabinoid & Terpene Reference

Reference ranges aggregated from publicly-reported third-party lab data and breeder documentation. Total THC reported as max-potential (THC + 0.877 Γ— THCA). Individual seed-lot expression may vary by 1-3 percent.

Total THC
16.5%
CBD
0.07%
Top Terpenes
Myrcene, Humulene, Pinene

Kush XL Auto, Aggregated Grower Yield Reports

Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Kush XL Auto autoflower seeds. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, balcony, 5-gal fabric pot270g
5Γ—5 tent, 730W LED, SCROG166g
4Γ—4 tent, 1000W HPS, SCROG166g

Kush XL Auto, Sourcing & Genetics

Release Era
Late 2000s
Parent Genetics
Northern Lights Γ— Kush modern indica
Lineage Notes

Kush XL Auto comes from a respected West Coast breeder line known for its terpene-forward genetics and stable phenotype expression.

Recommended US Climate

Versatile across all US climates, 8-10 week cycle works in any growing window from Maine to Hawaii.

Kush XL Auto, Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics , our internal breeding team. Every order is backed by our 95% germination guarantee. Read our full breeding process and about page.

Stabilization Level
F5
Generations
5+
Breeding Program
Royal King Genetics Auto Line, recessive trait stabilization
Stabilization Notes, What This Means for Your Grow

Kush XL is our F5 autoflower line. Five generations of selection have fixed both the autoflower trigger and the purple expression the cultivar is known for. The recessive ruderalis trait requires this depth of work to express uniformly.

Breeding Goal

Lock the autoflower trait in Kush XL through five generations of selection.

Selection Focus

Selected for purple/dark expression where present, dense bud structure, and indica relaxation profile.

Pollen / Mother Source

Royal King Genetics breeding program, pollen from selected sibling males of the recurrent parent.

Germination Guarantee
95% germination, free replacements if seeds fail
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