How to Grow Sour Kush
Sour Kush is a potent, earthy indica hybrid that crosses Sour Diesel with OG Kush, two of the most respected names in cannabis. It carries a smooth 16–21% THC, an earthy, spicy kush flavour and a famously big yield, finishing in 8–10 weeks. It leans 60% indica, with a relaxed, deeply soothing, happy character.
The pairing of Sour Diesel’s fuel-sour backbone and the resin and body of OG kush gives Sour Kush a deep, old-school profile and a dense, frosty structure. The result is a 60% indica plant that is as productive as it is flavourful.
Recommended Strains
Because it is feminized, forgiving and very productive, Sour Kush is an easy, rewarding plant to run. You can see the full genetics and buy Sour Kush seeds on the strain page.
Strain Profile at a Glance
| THC | 16–21% (medium) |
|---|---|
| Lineage | Sour Diesel x OG Kush |
| Type | Feminized |
| Genetics | 60% Indica / 40% Sativa |
| Climate | Temperate |
| Flowering time | 8–10 weeks |
| Harvest | October (outdoors) |
| Height | 4.92 ft / 1.5 m |
| Yield | High |
| Yield indoor | 1.47–1.64 oz/ft² (450–500 g/m²) |
| Yield outdoor | 42.33 oz/plant (1200 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Earthy, Kush, Spicy |
| Effects | Relaxed, deeply soothing, Happy |
Promos & Deals
Climate and Where to Grow It
Sour Kush suits a temperate climate with warm, mild days and a reliable season. Grown outdoors it finishes around October, so pick a region that stays warm and dry into autumn to let its dense, resinous buds ripen fully before the damp arrives.
Its indica lean keeps the plant compact and bushy at around 1.5 m, but the sticky, OG-style colas can trap moisture, so keep humidity moderate and the airflow steady through flowering to protect them from bud rot. At a manageable height a single outdoor plant can still bring in an enormous harvest when given room and sun, so plan for space to support the heavy branches.
Indoors it is happy at daytime temperatures around 68–80°F (20–27°C). A little space around the plant and some gentle training keep light reaching the lower buds, which helps that high yield fill in evenly across the canopy.
Growing Basics
As a feminized photoperiod strain, Sour Kush gives you virtually all female plants, so there is no need to sex seedlings or remove males. That makes it simpler to run than regular seeds and a good fit for less experienced growers.
Run a vegetative stage under long days, usually 18 hours of light, then switch to a 12/12 light schedule to trigger flowering. Its indica-leaning structure takes well to a little topping and low-stress training during veg, which spreads the canopy and helps this feminized plant carry its heavy, resinous colas.
Feeding Schedule (EC Guide)
Feed to the stage rather than the calendar, starting low and building up as the plant asks for more. A heavy-yielding plant like this will take a solid bloom feed, but still ease into it so you do not push nutrients faster than the roots can use them.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Raise nitrogen gently under 18-hour days |
| Early flower | 1.2–1.4 | After the 12/12 flip, shift toward P and K |
| Full flower | 1.4–1.6 | Peak bloom feed while the colas fatten |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Flowering Time and Harvest
After the flip to 12/12, Sour Kush flowers in 8–10 weeks. It is a genuinely heavy producer and one of our high-yielding options: expect 1.47–1.64 oz/ft² (450–500 g/m²) indoors, while a single well-grown outdoor plant can reach an enormous 42.33 oz (1200 g).
The indica lean builds dense, chunky, resinous flowers with a sour, earthy-kush aroma. Harvest when most trichomes have turned cloudy with a few amber for the fullest, most relaxed expression, and give the plant a 1–2 week plain-water flush beforehand to clean up the final flavour before you cut.
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. With buds this dense, a slow, even dry keeps the inside from staying damp while the outside dries, protecting both the aroma and the 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 deepens the earthy, spicy kush character and smooths the smoke, which is exactly what a Sour Diesel x OG Kush cross deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Sour Kush is a frosty, resin-coated plant, so the trim is great for dry sift, bubble hash or rosin, giving you a bonus run of concentrate from material most growers throw away.
Flavor and Terpenes
Sour Kush tastes earthy and spicy with a classic kush depth, the deep, old-school profile it inherits from its Sour Diesel and OG Kush parents. The earthy, resinous base leads, with a peppery, spicy warmth running through it.
With a broad terpene profile, six lead the character: myrcene (a deep, earthy base), caryophyllene (peppery, spicy kush warmth), humulene (woody, hoppy depth), eugenol (a warm, clove-like spice), terpineol (a soft woody-floral note) and alpha-pinene (a clean, resinous pine edge). Behind them sit cedrene, borneol, cadinene, camphene, citral, limonene, farnesene, fenchol, linalool, nerolidol, ocimene, phytol and terpinolene, a broad supporting cast that rounds out the earthy, kush, spicy profile.
Effects and Best Use
With its 60% indica genetics, Sour Kush is reported as relaxed, deeply soothing and happy, a mellow, body-forward experience that eases you in while keeping a light, upbeat edge. It settles you without feeling overwhelming.
That makes it a natural end-of-day and downtime strain, and the medium 16–21% THC keeps it approachable. Combined with its deep, sour-kush flavour and its huge, easy-to-grow harvest, it is a well-rounded all-rounder for the garden and the jar alike.
FAQ
Is Sour Kush indica or sativa?
It is indica-dominant, at 60% indica and 40% sativa, so the effect is relaxed and body-forward with a happy, soothing character.
Is Sour Kush feminized?
Yes. These are feminized seeds, so you get virtually all female plants and do not need to sex seedlings or remove males, which keeps the grow simple.
How long does Sour Kush take to flower?
About 8–10 weeks after the flip to 12/12. Grown outdoors in a temperate climate it finishes around October.
Is Sour Kush good for beginners?
Yes. It is a forgiving, feminized strain listed among our beginner-friendly options, and its huge yield makes it very rewarding to grow.
What does Sour Kush taste like?
Expect an earthy, spicy flavour with a classic kush depth, driven by its myrcene, caryophyllene, humulene and eugenol.
How much does Sour Kush yield?
It is a high producer: 1.47–1.64 oz/ft² (450–500 g/m²) indoors, and a single outdoor plant can reach an enormous 42.33 oz (1200 g) in a good season.
