How to Grow Z OG
Z OG is an award-winning, indica-dominant feminized strain prized for its sweet, fruity-citrus flavor and relaxed, happy high. It carries a medium 16–20% THC, a citrus, fruity, kush and sweet taste, and a happy, relaxed, talkative effect on a compact, colourful plant with elite, cup-winning genetics.
Bred from Grape Ape crossed with Grapefruit, Z OG is a 75% indica, 25% sativa feminized strain with a famously fruity profile. Grape Ape (with Skunk #1, Afghani and Mendocino Purps behind it) brings sweet, grape-candy depth and rich colour, while Grapefruit adds the bright, zesty citrus lift, finishing in dense, frosty, colourful buds.
Recommended Strains
Because it is sturdy, compact and decorated with multiple cup wins, Z OG is a rewarding grow at any level. You can see the full genetics and buy Z OG feminized seeds on the strain page, and browse more of our indica seeds alongside it.
Strain Profile at a Glance
| THC | 16–20% (medium) |
|---|---|
| Lineage | Grape Ape x Grapefruit |
| Type | Feminized |
| Awards | Emerald Cup 2016, 2017; Spannabis 2018, 2023 |
| Genetics | 75% Indica / 25% Sativa |
| Climate | Tropical / warm |
| Flowering time | 8–10 weeks |
| Harvest | October |
| Height | 3.28 ft / 1 m |
| Yield indoor | 1.47–1.64 oz/ft² (450–500 g/m²) |
| Yield outdoor | 24.69 oz/plant (700 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Citrus, Fruity, Kush, Sweet |
| Effects | Happy, Relaxed, Talkative |
Promos & Deals
An Award-Winning Strain
Z OG is a genuine, repeat competition winner. At the Emerald Cup it took 1st Place for Best Flower in 2016 and 2nd Place, Indoor in 2017, then at Spannabis it earned 2nd Place, Sativa in 2018 and 1st Place, Indica in 2023. Wins across multiple categories and years point to stable, high-quality genetics and a consistent, standout finish.
For a grower, that track record is a reassuring signal of quality and reliability, which is exactly what you want when you invest a full cycle into a plant. You can find it alongside our other award-winning cannabis seeds if you want more proven performers.
Climate and Where to Grow It
Z OG does best in a warm, tropical climate with plenty of light and good airflow. It is a sturdy, adaptable plant that performs both outdoors in a warm season and in a controlled indoor tent, staying compact at around 1 m, which makes it an excellent fit for small tents and discreet spaces.
Outdoors it finishes around October and can reward a good spot with up to 700 g per plant, which is impressive for such a short plant, while indoors it produces a strong 450–500 g/m². Those numbers depend on light, pot size and canopy health, so give it good conditions and feed it steadily to reach the top of the range.
Indoors, aim for daytime temperatures around 70–82°F (21–28°C) and keep steady airflow moving through the canopy. Cooler nights late in flower help bring out the colourful tones from its Grape Ape side. Its dense, resin-heavy buds hold moisture, so keep humidity in check as flowering fills in.
Growing Feminized Photoperiod Seeds
As a feminized strain, every seed grows into a flowering female, so there is no need to sex the plants or remove males. That keeps the grow simple and means no wasted time or tent space on plants you would only cull later, which is part of why Z OG is so beginner-friendly.
Being a photoperiod plant, it flowers on a light change rather than on age. Grow it under a long day (around 18 hours of light) through the vegetative stage, then switch to a 12/12 cycle to trigger flowering. A longer veg builds a bigger frame and a heavier harvest, while a shorter veg keeps this already-compact plant even more manageable.
Feeding Schedule (EC Guide)
This is a resinous, productive indica that sets dense, sticky buds, so feed it steadily but without overdoing it. Start low, build up as the plant asks for more, and taper right off for the final flush so the sweet, fruity-citrus flavor comes through clean and the smoke finishes smooth.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Build the frame, raise nitrogen gradually |
| Early flower | 1.2–1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4–1.6 | Peak bloom feed while the sticky buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Flowering and Harvest
Once you flip to 12/12, bloom runs about 8–10 weeks. As a 75% indica it stays short and bushy, packing on dense, chunky, resin-coated buds that gain weight and often take on colourful, purple-tinged tones through the second half of flowering rather than stretching tall the way a sativa would.
Give the colas light support as they fatten, and keep the canopy open so light reaches the lower flowers. Harvest when most trichomes have turned cloudy with a few amber heads for the fullest expression, and run a short plain-water flush in the last week or two before you cut the plant down.
Drying and Curing
Dry whole plants or branches in a dark room at around 60°F (15–18°C) and 55–60% humidity for 7–14 days, until the thin stems snap rather than bend. A slow, even dry stops the dense, sticky buds staying damp in the middle while the outside dries out, which protects both the sweet, fruity aroma and the heavy resin.
Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure brings the citrus, fruity and sweet notes forward and smooths the smoke, which is exactly what this colourful, cup-winning Skunk-family strain deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Z OG is a frosty, resin-rich plant, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of sweet, fruity-citrus concentrate from material most growers would otherwise throw away.
Flavor and Terpenes
Z OG lives up to its fruity reputation: a sweet, candy-like flavor with a bright citrus and grapefruit lift and a subtle kush undertone. It is a fun, mouth-watering taste rather than a dark or earthy one, carried straight from its Grape Ape and Grapefruit parents into the cured flower, and it is a big part of what won the strain its cups.
Its terpene profile is led by limonene for the citrus and grapefruit zest, caryophyllene for a soft, kush-like peppery backbone and humulene for an earthy depth, with terpinolene adding a fresh fruity lift, linalool a soft floral sweetness and pinene a clean top note, alongside carene in support. The sweet, grape-candy character comes through from the Grape Ape side layered over that citrus terpene base.
Effects and Best Use
With its indica-dominant genetics, Z OG is reported as happy, relaxed and talkative, a comfortable, mood-lifting high that settles the body while keeping you cheerful and sociable. The light sativa share stops it feeling heavy, so it works well for a relaxed evening with company rather than pinning you down, which is part of its broad appeal.
At a medium 16–20% THC it is gentle and approachable, which suits both newer users and anyone who prefers an easygoing, manageable high. That character, the sweet fruity-citrus flavor, the award-winning pedigree and the compact, colourful plant are exactly why growers reach for Z OG.
Common Problems and Pro Tips
The main thing to watch with Z OG is humidity around its dense, resin-heavy buds. Those sticky, chunky colas trap moisture, so bud rot is the most common problem in the final weeks of flower. Keep humidity moderate through the second half of bloom, run steady airflow, and a light defoliation of the inner canopy helps air reach the thickest buds on this compact plant.
Bringing out its colour and making the most of a small frame are the other things to plan for. To coax the purple tones from its Grape Ape side, let night-time temperatures drop a little in late flower, and give it good light right over the low canopy with gentle early training so every bud fills out well.
As a pro tip, protect the sweet fruity-citrus flavor that won this strain its cups: keep the feed moderate rather than heavy, since overfeeding can mute the limonene and the candy-sweet terpenes, and give it a clean plain-water flush in the final one to two weeks. Follow the trichomes rather than the calendar at the end, then dry slowly and cure for three to four weeks to do its award-winning genetics justice.
FAQ
What awards has Z OG won?
Z OG is a repeat winner: 1st Place Best Flower at the Emerald Cup 2016 and 2nd Place Indoor in 2017, then 2nd Place Sativa at Spannabis 2018 and 1st Place Indica in 2023. Wins across multiple categories and years point to stable, high-quality genetics and a consistent finish, reassuring for first-time and experienced growers alike.
Is Z OG indica or sativa?
Z OG is indica-dominant, at roughly 75% indica and 25% sativa, from its Grape Ape and Grapefruit parents. That shows in a relaxed, comfortable body feel, while the sativa share and a happy, talkative lift keep the experience cheerful and sociable, so it stays pleasant and easygoing rather than purely heavy.
What does Z OG taste like?
Z OG has a sweet, fruity flavor: a candy-like grape sweetness with a bright citrus and grapefruit lift and a subtle kush undertone. Limonene drives the citrus and grapefruit zest, caryophyllene adds a soft kush-like spice, and the sweet grape-candy character comes through from its Grape Ape heritage.
What is Z OG’s THC level?
Z OG carries a medium THC of 16–20%, gentle and approachable rather than overpowering. That level drives a happy, relaxed, talkative effect that stays easygoing, so it suits both newer users and anyone who wants a sociable, manageable high rather than the heaviest possible hit at the end of the day.
How long does Z OG take to flower?
About 8–10 weeks once you switch to a 12/12 light cycle, with outdoor plants finishing around October. It is a photoperiod feminized strain, so it blooms on the light change rather than on age, filling in dense, resinous buds that often take on colourful, purple tones through the second half of flowering.
Does Z OG turn purple?
Often, yes. Its Grape Ape heritage gives it a genuine tendency toward purple and colourful tones, which show up most in the buds and leaves late in flower. Cooler night-time temperatures in the last couple of weeks of bloom help bring that colour out, though the exact shade varies from plant to plant.
