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Grandmommy Purple is a rich, fruity indica that hits with deep body relaxation and bold grape flavour. It’s easy to grow, potent enough to impress, and perfect for serious nighttime chill.


There’s nothing rushed about Grandmommy Purple. No hype train, no wild swings. Just a dependable, quietly powerful indica that does what so many strains promise, but very few actually deliver.
This one grows with grace, finishes with weight, and hits with the kind of sleepy, stone-soaked calm that settles the body in all the right ways. Thick, grape-scented buds. Proper structure. And a mellow grow that suits beginners just fine. If you’ve been looking for that classic purple experience, this is about as true to form as it gets.
Big Bud meets Purple Urkle. It’s a pairing that’s not flashy on paper, but in the grow room, it makes a ton of sense. You get Urkle’s deep colour and that lush, syrupy grape aroma, with Big Bud stepping in to fatten everything up. This isn’t one of those gangly purple sativas. It grows short, stacks early, and finishes dense. Like a couch-friendly linebacker in plant form.
First things first, this is a nighttime strain. It doesn’t pretend otherwise. The high rolls in gently but lands with real weight. Expect a full body buzz that doesn’t just relax, it anchors. Sleep comes easy. So does hunger. And if you’re the kind of person who appreciates a little mental quiet after a long day, Grandmommy Purple shows up exactly when it should.
The flavour profile leans hard into the purps. Grape is front and center. There’s some berry in there too, and underneath it all, a grounding mix of earthy wood and sweet funk. That mix lingers, especially after curing. Open a jar and the whole room takes a step back.
Don’t let the mellow vibe fool you, this strain is a beast. THC can push up to 33, which puts it squarely in the heavy hitter category. There’s a touch of CBD too, around 1, which helps take the edge off and makes the experience feel rounded, not overwhelming. But make no mistake. If you're new to high-potency strains, start slow. This one doesn’t bluff.
Beta myrcene does a lot of the heavy lifting here. It’s what gives the high that warm, body-first slide. Beta caryophyllene adds some spice and staying power, while limonene brightens things just enough to keep the flavours from going flat. Alpha pinene keeps your head clear, at least for a little while, and linalool leans into the sleepy, feel-good finish. Then there’s alpha humulene, giving the whole thing a slightly herbal edge that makes the flavour linger just a bit longer than expected.
Beginner friendly, no doubt. This isn’t one of those fussy strains that throws tantrums if your humidity’s off by five percent. It grows like it knows what it’s doing. Keep it fed, give it light, and it’ll do the rest. It doesn’t need aggressive training, but it’ll take it if you offer. Just keep an eye on those colas late in flower. They bulk up fast and may need a little support.
Indoors, it keeps things compact, usually between 60 cm and 120 cm, and that’s without having to wrestle it into submission. It fits well in small tents, grows evenly, and smells amazing as it matures. Outdoors, it stretches more, up to around 140 cm to 180 cm, but still holds a tight, bushy shape that makes canopy management simple. Greenhouse growers get the best of both worlds here. This strain loves a dry, warm finish, so Mediterranean and temperate climates are ideal. It can handle a continental season too, as long as the autumn isn’t too wet.
Expect a flowering time of 60 to 65 days. It’s not lightning fast, but you’re not waiting forever either. Indoors, yields come in strong, around 500 to 600 gram per m2. Outdoors, with a bit of space and sunlight, you’re looking at 700 to 1000 gram per plant. It’s not one of those strains where you have to choose between quality and quantity. Grandmommy Purple just quietly gives you both.
Grandmommy Purple isn’t here to shout. It’s here to work. A proper end-of-day indica with real flavour, real power, and the kind of low-maintenance grow that fits just about any setup. Whether you’re growing in a tent, a sunny backyard, or a sealed greenhouse, this one shows up and finishes strong.
Buy Grandmommy Purple seeds online at WeedSeedsExpress and grow something that actually lives up to its name.
Click here for the full strain description.
| Lineage | Big Bud X Purple Urkle |
| Flowering Type | photoperiod |
| Gender | feminized |
| Genotype | Indica dominant |
| Ratio | 20 % Sativa / 80 % Indica |
| Grower Profile | Beginner |
| THC | Up to 33% |
| CBD | Up to 1.00% |
| Yield Indoor | Up to 600 gr./m2 |
| Yield Outdoor | Up to 1000 gr./plant |
| Height Indoor | Up to 120 cm |
| Height Outdoor | Up to 180 cm |
| Climate | Mediterranean, Temperate, Continental |
| Flowering Time | 60 to 65 days |
| Flavors | Grape, Berry, Sweet, Earthy, Woody |
| Terpines | Beta Myrcene, Beta Caryophyllene, Limonene, Alpha Pinene, Linalool, Alpha Humulene |
| Effects | Calming, Relaxed, Sleepy, Happy, Hungry, Powerful |
What does Grandmommy Purple taste like?
Sweet grape and berry dominate, with earthy, piney undertones and a light spicy finish.
What are the effects of Grandmommy Purple?
Deeply relaxing and body‑focused, calming the mind and muscles; ideal for evening or nighttime use.
What are the THC and CBD levels of Grandmommy Purple?
Typically high THC with low CBD. Potent effects make it better suited to experienced consumers or low doses for newcomers.
Are Grandmommy Purple seeds feminised and photoperiod?
Yes. These are feminised, photoperiod seeds that require a 12/12 light cycle to trigger flowering.
How long is the flowering time for Grandmommy Purple?
Indoors it typically flowers in about 8–9 weeks. Outdoors, harvest is usually late September to October in the Northern Hemisphere.
Is Grandmommy Purple suitable for indoor and outdoor growing?
Yes. It performs well indoors and outdoors. It prefers a warm, relatively dry climate; cooler nights can enhance its purple hues.
How tall does Grandmommy Purple grow?
It tends to stay compact to medium in height with a sturdy indica structure and moderate stretch after switching to 12/12.
What yields can I expect from Grandmommy Purple?
Expect medium to high yields of dense, resinous buds when given strong light, balanced nutrition, and proper training.
What training methods work well for Grandmommy Purple?
Topping, LST, and SCROG/SOG are effective to open the canopy and boost yields; support branches late in bloom due to dense buds.
What temperatures and climate does Grandmommy Purple prefer?
Daytime temperatures around 21 °C to 26 °C are ideal. A gentle drop at night near the end of bloom can deepen purple tones; keep humidity moderate.
Does Grandmommy Purple have a strong smell?
Yes. Its sweet grape aroma can be pungent, especially during late flowering and drying; a carbon filter is recommended indoors.
