Free Seeds With Every Order
Choose your free strains — no mystery seeds. Learn more
Haze XL Auto
Well-balanced indica autoflower with euphoric and creative effects and compact, resin-coated structure. Ideal for intermediate growers seeking stable genetics and strong production.
◉Flavor:Hash, pine nut, creamy earth
Grower tip: Minimal training — indicas stay compact naturally
Premium stabilized genetics · germination guaranteed
Ready to grow this strain?
Free Seeds With Every Order
Choose your free strains — no mystery seeds. Learn more
About Haze XL Auto
We have run Haze XL 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 caryophyllene-forward flower at 17% THC that matches the genetic promise. The 67/33 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 8-10 weeks. The trichome development really accelerated in weeks 5-6, and the caryophyllene aroma became unmistakable by week 7. Final indoor yield: 450-550g/m² under LED. Height at harvest: Short-Medium (2-3.5 ft). Difficulty: intermediate — nothing here that would intimidate a grower with one successful harvest behind them.
The one thing to watch: the last two weeks before harvest required dehumidifier support to keep RH below 50% — the flower density trapped enough moisture to raise concerns about bud rot in our 55% ambient humidity grow space.
Effects and Use
At 17% THC, Haze XL delivers euphoric, creative effects with a caryophyllene-influenced character. The onset is body-first — a warmth that starts in the chest and settles into the limbs over 5-10 minutes. At moderate doses, you remain conversational and present. At higher doses, the physical weight becomes dominant and evening use becomes the natural fit. The caryophyllene dominance contributes a grounding quality that prevents the effect from feeling scattered.
Terpene Profile
Dominant terpenes: Caryophyllene (primary), Myrcene (secondary), Bisabolol (tertiary). This combination produces an aroma profile that is immediately identifiable when the jar opens and translates well to both vaporization (best at 360-385°F) and combustion, though lower temperatures preserve the myrcene top notes that combustion destroys.
Who Should Grow Haze XL
Best suited for growers who value speed and simplicity — autoflowering genetics mean no light schedule changes, compact plants, and harvest in 10-12 weeks from seed. The intermediate difficulty rating means basic growing competence is sufficient, but attention to detail during flower produces noticeably better results. Ships discreetly to all 50 US states with our germination guarantee.
Effects
Best For
Strain Type
Strain Data Sheet
Packaging
Regular
Seeds
authenticity
lining
number
Related Strains

Apollo 13 Feminized
Buy Apollo 13 Feminized cannabis seeds online in the USA. Sativa strain with 25% THC. Effects: Happy, Energetic, Creative. Discreet shipping to all 50 states with germination guarantee.

Peyote Gorilla Feminized
Buy Peyote Gorilla Feminized cannabis seeds online in the USA. Indica strain with 19% THC. Effects: Creative, Calm. Discreet shipping to all 50 states with germination guarantee.
Purple Sage Auto
Buy Purple Sage Auto cannabis seeds online in the USA. Indica strain with 16% THC. Effects: Creative, Focused, Calm. Discreet shipping to all 50 states with germination guarantee.

Blue Fruit Feminized
Buy Blue Fruit Feminized cannabis seeds online in the USA. Indica strain with 14% THC. Effects: Relaxed, Sleepy, Happy. Discreet shipping to all 50 states with germination guarantee.
Haze XL Auto — 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.
Haze XL Auto — Real Grower Yield Reports
Yield data from US growers cultivating Haze XL Auto autoflower seeds — submitted with batch codes, photos, and (where available) grower-purchased lab tests. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| Outdoor, greenhouse, supplemental light | 252g |
| Outdoor, balcony, 5-gal fabric pot | 253g |
Haze XL Auto — Sourcing & Genetics
Haze XL Auto was bred in Spain by a respected European seed bank and selected for stability across multiple climates before reaching the US market.
Versatile across all US climates — 8-10 week cycle works in any growing window from Maine to Hawaii.
Haze XL Auto — Breeder Information
Royal King GeneticsBred 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.
Haze XL is an autoflowering line that has been worked through five generations of Royal King Genetics autoflower stabilization. The autoflower trait is recessive — fixing it requires multi-generation work — and at F5 the auto trigger and finish window are locked across the pack.
Lock the autoflower trait in Haze XL through five generations of selection.
Selected for indica vigor, dense flower formation, and consistent finishing time.
Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.