RK
Blue Kush cannabis seeds packaging β€” Royal King Seeds New Zealand
HybridAuto
THC 20%
⏱ Quick finisher
HybridAutoflowerIn Stock

Blue Kush Auto

Blue Kush Auto β€” hybrid, 20% THC on the listing, relaxed, happy, euphoric. Sent in plain packaging with NZ Post tracking and covered by our germination promise.

Select Pack Size
$17.98NZD
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 2026-09-02, from a tray sample of 440.

Opened on the bench: 98.2% of 440
Lot checked: 2026-09-02, at 20-23Β°C
Under lights here: 427-575 g/mΒ², across 5 grower reports
Outside here: 494-700 g/plant, across 11 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 Blue Kush Auto

Latitude decides more about a Blue Kush crop than anything you buy. New Zealand runs roughly 34 to 47 degrees south, and that span turns one 55/45 hybrid into two different plants: a Kaitaia grower fights airflow and humidity through a muggy February, while a Southland grower is counting the weeks to first frost. Neither problem is about heat. If frost rather than heat is your limit, the strain finder sorts the catalogue by finishing time.

Growing Blue Kush in New Zealand Conditions

Indoors the outside world stops mattering and the job is control. Outdoors it is the whole brief.

Upper North Island β€” Northland, Auckland, Waikato, Bay of Plenty. The longest season in the country and the wettest finish. Bud rot, not sunshine, is what costs you a crop here, so plant where morning air moves and thin the interior early rather than admiring a dense canopy in January. More open flower architecture is an advantage through a humid autumn.

Lower North Island. Hawke's Bay and Gisborne are the driest and sunniest stretch; Taranaki, ManawatΕ« and Wellington trade that for rain and wind. Wind decides how tall you let a plant get more than the genetics do.

South Island. Nelson, Tasman and Marlborough offer the best outdoor conditions nationally β€” high sunshine hours, low summer rainfall. Canterbury, Otago and Southland run a genuinely short season where flowering runs 10-12 weeks is the number that matters, because everything is a race against the first frost. An autoflower sidesteps this by finishing on its own clock. If your season is short, the autoflowering indica list is the better starting point.

Effect Profile

Relaxed, Happy, Euphoric is the consensus, and consensus is worth exactly what it sounds like β€” a starting point. 20% THC sets the scale; caryophyllene and the terpenes alongside it shape the character rather than the strength.

Onset is quick by inhalation and slow by ingestion, which is where most bad experiences begin. Expect either, depending on how much you take.

If potency is what you are shopping for, the high-THC seeds category is sorted for it.

The Terpenes

Caryophyllene leads, myrcene sits behind it, and humulene runs underneath.

Aroma is not fixed at harvest β€” it develops. Fresh flower leads hard with caryophyllene; three or four weeks in sealed glass at a stable 16 to 18 degrees lets myrcene and humulene come forward as the sharper volatiles clear. Jars opened at week one and week five smell like different plants.

Who It Suits

Blue Kush is rated easy. That makes it a reasonable first grow β€” it survives inconsistent watering and imprecise feeding without collapsing, which is what a first season mostly consists of. Being an autoflower removes light-cycle management entirely, which suits balcony growers and anyone wanting a fast turnaround.

Shipped nationwide in plain packaging. Every strain page carries whatever grow data we could actually source, and nothing we could not.

Published Figures

  • Finishes in 10-12 weeks
  • Under lights: 350-400 g/m2
  • Grown out: 150-200 g/plant
  • Height: Medium
  • Difficulty: easy

Reported Effects

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

😌Relaxed
Most prominent in the descriptions we hold
😊Happy
Reported alongside it
πŸ€—Euphoric
Reported alongside it
🀩Creative
Reported alongside it
😎Uplifted
Reported alongside it
🀀Hungry
Reported alongside it
😴Sleepy
Reported alongside it
πŸ˜†Giggly
Reported alongside it
🧠Focused
Reported alongside it

Best For

✦ Anytime
✦ Relaxation
✦ Stress Relief

Where It Sits

Indica 55%Sativa 45%

The Numbers

🧬THC20% - 23% (High)
🌿Comes fromBlueberry Γ— OG Kush
πŸ”¬LeansAutoflower Hybrid
🌑WantsAll climates (adaptable)
πŸ“…Comes downβ‰ˆ 10 – 11 weeks from seed (typical)
πŸ“Gets toMedium
βš–οΈCarriesMedium – High
🏠Under lights350-400 g/m2
🌳In the ground150-200 g/plant
⏱Time in bloom10-12 weeks

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
Blue Kush 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

Related Strains

Blueberry Kush cannabis seeds packaging β€” Royal King Seeds New Zealand
IndicaAuto
THC 19%
⏱ Quick finisher

Blueberry Kush Auto

RelaxedSleepyHappy
β–Ό
$17.98NZD
Blue Kush cannabis seeds packaging β€” Royal King Seeds New Zealand
Hybrid
THC 20%
πŸ“ˆ Heavy cropper

Blue Kush Feminised

RelaxedHappyEuphoric
β–Ό
$17.98NZD
Blue Blood cannabis seeds packaging β€” Royal King Seeds New Zealand
IndicaAuto
THC 14%
⏱ Quick finisher

Blue Blood Auto

RelaxedSleepyHappy
β–Ό
$25.19NZD
Tembo Kush cannabis seeds packaging β€” Royal King Seeds New Zealand
HybridAuto
THC 22%
⏱ Quick finisher

Tembo Kush Auto

RelaxedHappyEuphoric
β–Ό
$19.79NZD

Where Blue Kush Auto Comes From

Documented parentage is Blueberry Γ— OG Kush. Where a cultivar's origin is recorded we name it on this page; where it is contested or simply unknown, the field stays empty rather than being filled with something plausible.

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.