RK
J1 cannabis seeds packaging β€” Royal King Seeds New Zealand
Hybrid
THC 23%
🎨 Heady
HybridFeminisedIn Stock

J1 Feminised

Growing J1 Feminised in New Zealand: a hybrid at 23% THC, creative, happy, uplifted. Flowering window and height are on the page where we hold them, blank where we do not.

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$27.89NZD
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 2026-09-18, from a tray sample of 440.

Opened on the bench: 97.5% of 440
Lot checked: 2026-09-18, at 21-24Β°C
Under lights here: 388-531 g/mΒ², across 12 grower reports
Outside here: 547-746 g/plant, across 3 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 J1 Feminised

Will J1 finish outdoors in New Zealand? In most of the country, yes. The outdoor window runs October to April, and a photoperiod finishes as the autumn light shortens, so the question is whether your first frost arrives before it does. Balanced genetics adapt to most of the country, so the honest answer depends on where you are. The regional notes below are the short version.

Questions New Zealand Growers Ask About J1

What medium suits it? Living soil rewards flavour, coco rewards control and speed. Neither is wrong. Choose the one you will actually maintain.

How much light? More in veg than growers expect, less in late flower than they think. Twelve hours of uninterrupted dark triggers flowering β€” and uninterrupted means exactly that.

When is it ready? Trichome colour, not the calendar. The published window is 55-65 days, which is a reasonable figure to plan around, but the plant decides.

Is it beginner-friendly? It is rated intermediate. That means basic competence with pH and feeding is enough.

Where do I put it? Indoors it is predictable; the indoor-friendly genetics list covers what performs in a tent. Outdoors, see the regional notes above β€” or the outdoor-season range if the season is your constraint.

How does it arrive? Plain, unbranded packaging with tracking β€” the detail is on the shipping page.

What J1 Is Like

Reported effects cluster around creative, happy, uplifted. At 23% THC that is a meaningful figure rather than a decorative one, and the sensible approach with anything in this range is to start lower than you think and wait longer than feels necessary.

The 40/60 balance shapes where it lands: even-handed, with the dominant direction shifting by dose more than by time of day. Tolerance moves this more than any other variable, which is why two people describe the same jar differently.

Prefer something gentler? The CBD-forward strains range trades peak potency for balance.

The Terpenes

Caryophyllene leads, limonene sits behind it, and myrcene 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 limonene and myrcene come forward as the sharper volatiles clear. Jars opened at week one and week five smell like different plants.

Who It Suits

Who does well with J1? Growers who want to control plant size and harvest date, and have the vegetative space to use that control. Anyone past their first grow.

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

Published Figures

  • Finishes in 55-65 days
  • Under lights: up to 450 g/m2
  • Grown out: up to 600 g/plant
  • Height: Medium
  • 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
😊Happy
Reported alongside it
😎Uplifted
Reported alongside it
😌Relaxed
Reported alongside it
πŸ€—Euphoric
Reported alongside it
🀀Hungry
Reported alongside it
😴Sleepy
Reported alongside it
πŸ˜†Giggly
Reported alongside it
🧠Focused
Reported alongside it

Best For

✦ Anytime
✦ Depression
✦ Fatigue
✦ Stress

Where It Sits

Indica 40%Sativa 60%

The Numbers

🧬THC23% - 28% (High)
🌿Comes fromJack Herer Γ— Skunk #1
πŸ”¬LeansFeminised Hybrid
🌑WantsTemperate, adaptable
πŸ“…Comes downMarch – May outdoors (NZ, typical)
πŸ“Gets toMedium
βš–οΈCarriesMedium – High
🏠Under lightsup to 450 g/m2
🌳In the groundup to 600 g/plant
⏱Time in bloom55-65 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
J1 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 J1 Feminised Comes From

Documented parentage is Jack Herer Γ— Skunk #1. 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.