303 OG Feminised
Hybrid genetics for a New Zealand grow. 303 OG Feminised carries a listed 24% THC and reads relaxed, happy, euphoric. Priced in NZD, GST included, delivered nationwide.
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 240.
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 303 OG Feminised
Days 1 to 14. 303 OG 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.
303 OG 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 Short.
Harvest. Published window: 60-70 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.
What 303 OG Is Like
Reported effects cluster around relaxed, happy, euphoric. At 24% 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 58/42 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 303 OG? Growers who want to control plant size and harvest date, and have the vegetative space to use that control. First-timers included β the genetics are forgiving.
Still deciding? The indoor-friendly genetics list is the narrower place to start.
Published Figures
- Finishes in 60-70 days
- Under lights: up to 300 g/m2
- Grown out: up to 350 g/plant
- Height: Short
- 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.
Best For
Where It Sits
The Numbers
How it arrives
Feminised Premium
Seeds
authenticity
lining
number
Related Strains
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Cherry Chem Feminised
Hybrid genetics for a New Zealand grow. Cherry Chem Feminised carries a listed 26% THC and reads relaxed, happy, euphoric. Priced in NZD, GST included, delivered nationwide.
Motorbreath #15 Feminised
Motorbreath #15 Feminised for New Zealand growers. Hybrid, listed 23% THC, relaxed, happy, euphoric. Free postage over $150, flat $14.99 below it, both islands.
Chemdawg Sour Diesel Feminised
Chemdawg Sour Diesel Feminised for New Zealand growers. Hybrid, listed 22% THC, euphoric, relaxed, uplifted. Free postage over $150, flat $14.99 below it, both islands.
Where 303 OG Feminised Comes From
Documented parentage is Pre-98 Bubba Kush Γ Chemdawg. 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.