RK
American Haze cannabis seeds packaging β€” Royal King Seeds New Zealand
SativaAuto
THC 24%
⏱ Quick finisher
SativaAutoflowerIn Stock

American Haze Auto

American Haze Auto, a sativa listed at 24% THC and described as creative, energetic. Posted unbranded and tracked to any New Zealand address, with the grow figures we could trace on the listing.

Select Pack Size
$19.79NZD
1
πŸ‡³πŸ‡ΏFree Over $150
🌱Replaced If It Fails
πŸ”’Nothing On The Box
βš—

What the seed lot did on the bench

Every lot is checked before it goes on the shelf, and the yield figures come from New Zealand growers who sent us a harvest weight against a batch code. This lot was read on 2026-09-19, from a tray sample of 360.

Opened on the bench: 95.9% of 360
Lot checked: 2026-09-19, at 21-24Β°C
Under lights here: 353-449 g/mΒ², across 18 grower reports
Outside here: 525-792 g/plant, across 4 grower reports

Outdoor figures come from a New Zealand season, so they run below what the same cultivar reaches somewhere with a longer, drier autumn. Treat them as what this plant does here. The full report for this lot sets out the method and the terpene panel.

About American Haze Auto

American Haze is bought for what comes off it, and the sourced figures are 300–500 g/mΒ² under lights and 350–450 g/plant from a plant grown out. Those are ceilings, not promises β€” pot volume, light intensity and how honestly you feed decide where you land inside them. Run the numbers for your own tent with the yield calculator before committing to a pack size, and put it next to the rest of the high-yield strains if weight is the whole point.

Getting the Weight Out of American Haze

What the sourced data gives for this cultivar: 300–500 g/mΒ² under lights, 350–450 g/plant from a plant grown outside. Reaching either is an environment problem before it is a genetics one.

Root volume sets the ceiling before a single flower forms. Under-pot a plant and no feeding schedule rescues it. Get the container right early and the plant does the rest.

Light is the second lever, and the one most growers get wrong in both directions β€” too little through veg, too much in late flower where it bleaches rather than builds. Steady beats aggressive.

The third is the fortnight around the flip. Autoflowers give you no flip to manage, which is exactly why the vegetative period has to be right the first time β€” there is no second chance to fix a stunted start.

Feed to the plant rather than the calendar. Our nutrient calculator gives a starting schedule; the plant will tell you where it is wrong. Worth a side-by-side comparison before you commit if weight is the deciding factor.

Reading the Effects Honestly

Effect descriptions are the least reliable part of any seed listing, this one included. What is defensible: this is a 16/84 sativa at 24% THC, commonly described as creative, energetic, with pinene leading the terpene profile.

What is not defensible is any promise about how it will feel for you. Dose, tolerance, setting and the phenotype you happen to pop all move the outcome more than the strain name does.

Growing a few and selecting the keeper is the only way to know. That is what a pack of autoflowering seeds is for.

The Terpenes

Pinene leads, limonene sits behind it, and caryophyllene runs underneath.

Temperature changes what you get. Vaporised low, around 180 to 188 degrees, limonene and caryophyllene come through cleanly while pinene stays in the background. Combusted, pinene dominates and the finer detail is largely lost. Same flower, two different experiences.

Who It Suits

Who does well with American Haze? Growers with limited headroom or no interest in managing timers. Apartment balconies. Anyone wanting more than one run in a season. Anyone past their first grow.

Still deciding? The indoor-friendly genetics list is the narrower place to start.

Published Figures

  • Finishes in 7–9 weeks from seed
  • Under lights: 300–500 g/mΒ²
  • Grown out: 350–450 g/plant
  • Height: 120–160 cm
  • Difficulty: intermediate

Reported Effects

Descriptive, and ordered by how prominently each one appears in the sources we hold. Not a survey, and not a measurement.

🀩Creative
Most prominent in the descriptions we hold
πŸ€‘Energetic
Reported alongside it
😊Happy
Reported alongside it
😎Uplifted
Reported alongside it
πŸ€—Euphoric
Reported alongside it
🧠Focused
Reported alongside it
πŸ—£οΈTalkative
Reported alongside it
πŸ’ͺMotivated
Reported alongside it
πŸ˜†Giggly
Reported alongside it

Best For

✦ Daytime
✦ Creative Projects
✦ Social Activities

Where It Sits

Indica 16%Sativa 84%

The Numbers

🧬THC24% - 28% (High)
🌿Comes fromAutoflowering Sativa-Dominant Hybrid (Undisclosed Lineage)
πŸ”¬LeansAutoflower Sativa
🌑WantsAll climates (adaptable)
πŸ“…Comes downβ‰ˆ 10 – 11 weeks from seed (typical)
πŸ“Gets to120–160 cm
βš–οΈCarriesMedium – High
🏠Under lights300–500 g/mΒ²
🌳In the ground350–450 g/plant
⏱Time in bloom7–9 weeks from seed

How it arrives

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Stored properly
Rigid vial
Resealable +
Sold to adults as souvenir stock and for keeping genetic lines intact. Establishing what the law where you live permits, and staying inside it, sits with the buyer.
1
American Haze Auto
royalkingseeds.co.nz
IG
FB
X
πŸ”’Sealed, so tampering shows
πŸ’§Damp-proof outer layer
πŸ›‘οΈFoil lining inside
🏷️Tamper sticker
πŸ“±QR code on the pack
πŸ”’Scratch-off serial

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Where American Haze Auto Comes From

We hold no documented parentage for this cultivar, so none is shown. A blank here is an admission rather than an oversight β€” we would rather leave it empty than publish a lineage we cannot stand behind.

We did not originate the cultivars in this catalogue and do not claim to have. What we do is select and stabilise the lines we sell, so that a pack grows out more uniformly than an unworked one β€” which matters more in New Zealand than in most places, because an outdoor grower here is working to a frost date rather than an open-ended season. The stabilisation programme sets out how that works and what it does not cover.

Every pack is covered by our germination promise: follow the method in the germination guide and seed that fails to open is replaced free within 30 days.