Grandmommy Purple Feminised
Grandmommy Purple Feminised for New Zealand growers. Indica, listed 33% THC, euphoric, calm. Free postage over $150, flat $14.99 below it, both islands.
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 2026-09-21, from a tray sample of 120.
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 Grandmommy Purple Feminised
Days 1 to 14. Grandmommy Purple 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 — 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.
Grandmommy Purple 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 width rather than height, and space plants accordingly.
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 — 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 Up to 120 cm.
Harvest. Published window: 60-70 days. Trichomes decide. Cut in sections if ripening is uneven — most plants ripen top-down and there is no prize for taking it all at once.
What Grandmommy Purple Is Like
Reported effects cluster around euphoric, calm. At 33% 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 76/24 balance shapes where it lands: body-forward, better suited to an evening than a task list. 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
Myrcene leads, humulene sits behind it, and linalool runs underneath.
This trio is a common signature in well-regarded cultivars, which is not an accident: myrcene carries weight, humulene adds definition, linalool keeps it from being one-note. It reads clearly on a first opening rather than needing to be hunted for.
Who It Suits
Grandmommy Purple is rated easy. That makes it a reasonable first grow — 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 60-70 days
- Under lights: 500-600 g/m2
- Grown out: Up to 1000 gr./plant
- Height: Up to 120 cm
- 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
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Where Grandmommy Purple Feminised Comes From
Documented parentage is Big Bud × Purple Urkle. 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 — 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.