RK
Blue Kush cannabis seeds packaging β€” Royal King Seeds New Zealand
Hybrid
THC 20%
πŸ“ˆ Heavy cropper
HybridFeminisedIn Stock

Blue Kush Feminised

Blue Kush Feminised, a hybrid listed at 20% THC and described as relaxed, happy, euphoric. Posted unbranded and tracked to any New Zealand address, with the grow figures we could trace on the listing.

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$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 2026-09-16, from a tray sample of 260.

Opened on the bench: 95.4% of 260
Lot checked: 2026-09-16, at 20-23Β°C
Under lights here: 401-528 g/mΒ², across 11 grower reports
Outside here: 484-634 g/plant, across 5 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 Feminised

Days 1 to 14. Blue Kush cracks on damp paper towel inside about two days and is through the medium by day three, given warmth and patience rather than intervention. Seedlings want humidity near 70% and no nutrients at all β€” the seed carries everything for the first week. By the end of the fortnight you are looking for even node spacing rather than height; a stretched seedling is a light problem, not a vigour signal. New to this? The free seeds on offer are a low-stakes way to practise the germination step.

Blue Kush Through the Grow

Weeks 3 to 6. Growth stops being tentative. This is when training earns its keep: bend rather than cut if you are unsure, because a bent branch recovers in a day and a topped one costs a week. Expect fairly even growth in both directions.

The transition. After the flip the plant may double. Whatever shape the canopy is at that point is roughly the shape you harvest.

Mid-flower. Bud sites fill and the aroma arrives β€” usually the point where extraction stops being optional. Feed heavier now, but watch the leaf rather than the schedule.

The last fortnight. Ease off nitrogen, drop the night temperature a little, and stop feeding before you think you should. Final height for this cultivar is published at Medium.

Harvest. Published window: 60 days. Trichomes decide. Cut in sections if ripening is uneven β€” most plants ripen top-down and there is no prize for taking it all at once.

Reading the Effects Honestly

Effect descriptions are the least reliable part of any seed listing, this one included. What is defensible: this is a 55/45 hybrid at 20% THC, commonly described as relaxed, happy, euphoric, with myrcene 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 feminised seeds is for.

The Terpenes

Myrcene leads, limonene sits behind it, and pinene runs underneath.

This trio is a common signature in well-regarded cultivars, which is not an accident: myrcene carries weight, limonene adds definition, pinene keeps it from being one-note. It reads clearly on a first opening rather than needing to be hunted for.

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 a photoperiod means you decide when it flowers, and therefore how big it gets.

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 60 days
  • Under lights: 500 g/m2
  • Grown out: 600-800 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% - 24% (High)
🌿Comes fromBlueberry Γ— OG Kush
πŸ”¬LeansFeminised Hybrid
🌑WantsTemperate, adaptable
πŸ“…Comes downMarch – May outdoors (NZ, typical)
πŸ“Gets toMedium
βš–οΈCarriesMedium – High
🏠Under lights500 g/m2
🌳In the ground600-800 g/plant
⏱Time in bloom60 days

How it arrives

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
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 Feminised
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 Blue Kush Feminised 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.