Macro shot of a mature Dougs Varin cannabis bud covered in trichomes with orange pistils, ready for harvest.

How to Grow Doug’s Varin

Doug’s Varin is a pure-sativa feminized strain that crosses Harlequin with a Thai landrace. It is a 90/10 sativa-dominant plant with a high 22-24% THC, a bright citrus, pine, earthy and spicy flavor, and a creative, energetic, euphoric effect. Tall, aromatic and long-flowering, it is a classic sativa project for a grower who enjoys an uplifting, daytime harvest.

This is a feminized photoperiod strain, so every seed grows into a flowering female and you start flowering by switching the light cycle to 12/12, which lets you decide how big the plant gets before you flip it. It leans almost entirely sativa, so it stretches, takes its time in flower and rewards you with a clear, energetic effect and a fresh, spicy-citrus aroma.

Aromatic, uplifting and productive, Doug’s Varin is a rewarding sativa to grow if you have the patience for a longer flowering window. You can see the full genetics and buy Doug’s Varin seeds on the strain page, and browse the rest of our sativa seeds alongside it.

Strain Profile at a Glance

THCHigh (22-24%)
LineageHarlequin x Thai landrace
TypeFeminized (photoperiod)
Genetics90% Sativa / 10% Indica
ClimateTemperate
Flowering time10-12 weeks
Harvest (outdoor)November
Height4.92 ft / 1.5 m
Yield indoor1.64-1.97 oz/ft² (500-600 g/m²)
Yield outdoor1.76-10.58 oz/plant (50-300 g/plant)
Grow difficultyBeginner-friendly, but needs patience in flower
FlavorsCitrus, Earthy, Pine, Spicy, Sweet, Woody
EffectsCreative, Energetic, Euphoric

Growing a Feminized Strain

Doug’s Varin is a feminized photoperiod strain, so every seed grows into a flowering female and there is no sexing and no males to remove. Because it flowers on the light cycle rather than on age, you control the timing: keep it under long 18/6 days to grow and build the frame you want, then switch to 12 hours of light and 12 of darkness to start flowering. That control matters especially with a sativa like this, because it stretches hard once you flip it.

As a 90% sativa, Doug’s Varin grows tall and open, reaching around 1.5 m by harvest with a stretch of roughly double its height after the flip. Flip it a little earlier than you would an indica and train it early, topping and using low-stress training to spread the canopy and keep the height in check. Its long, airy colas and 10 to 12 week flowering window are classic sativa traits, so give it room and plan for a longer finish.

Climate and Where to Grow It

Doug’s Varin suits a temperate climate with a long, mild, dry season, which gives this long-flowering sativa the time it needs to finish. Its sativa genetics love light and warmth, and it does well both indoors in a tent and outdoors where the season is long enough. Outdoors in the Northern Hemisphere it is ready to harvest around November, late in the year for its extended flowering.

Yields are high for a sativa, giving around 500-600 g/m² indoors and anywhere from 50 to 300 g per plant outdoors depending on how much sun, space and season you can give it. The outdoor range is wide precisely because this plant rewards a long, warm season: the more time and light it gets, the bigger it finishes. Keep the tall canopy open and supported so light reaches the lower buds.

Airflow is important with a tall, open sativa like this, so keep the air moving and humidity sensible through flowering: around 55-60% in veg, nearer 40% as the flowers fill out, and lower toward harvest. Its airy bud structure resists mold better than a dense indica, but a long flowering window still means a long exposure, so steady ventilation keeps the finish clean. Aim for daytime temperatures around 68-82°F (20-28°C).

Feeding Schedule (EC Guide)

Doug’s Varin is a vigorous, high-yielding sativa that feeds steadily through a long cycle. Build the feed up gradually through veg, push phosphorus and potassium once it is in flower to fuel those long colas, then taper off for the final flush so the bright citrus, pine and spice come through clean. The ranges below are a starting guide; adjust to your water and medium.

StageEC (mS/cm)Notes
Seedling0.4-0.6Very light feed while roots establish
Vegetative0.8-1.2Raise nitrogen as the plant builds size
Early flower1.2-1.4Shift toward bloom nutrients (P and K)
Full flower1.4-1.6Peak bloom feed while the colas fill out
Flush0.0-0.4Plain water for the final 1-2 weeks

Flowering and Harvest

Once you switch Doug’s Varin to a 12/12 light cycle it flowers in about 10 to 12 weeks, a long window typical of a near-pure sativa. It fills out with long, airy, trichome-frosted colas rather than tight indica nuggets, developing a bright citrus-pine aroma with an earthy, spicy backbone. Outdoors in the Northern Hemisphere it is ready to harvest around November, after a long, full season.

Yields are high: around 500-600 g/m² indoors and 50 to 300 g per plant outdoors depending on the season and space you can give it. Support the tall colas, keep the canopy open so the lower buds get light, feed it steadily through the long flower, and harvest when most of the trichomes have turned cloudy, with just a few amber, for the brightest flavor and the most energetic effect.

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 preserves the bright citrus-pine terpenes that make this sativa so aromatic, and the airy bud structure dries evenly if you keep the air gently moving.

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 is what brings out the citrus, pine, spice and sweet-woody depth and smooths the smoke, turning a freshly dried harvest into a fragrant, well-rounded sativa.

What to Do With Your Trim

Don’t bin the sugar leaves you remove while manicuring. Doug’s Varin carries plenty of frosty resin, so its trim is good for dry sift, bubble hash or rosin. The bright citrus-pine aroma carries right through into a concentrate, so saving the trim turns offcuts into a flavorful, aromatic run rather than waste.

Flavor and Terpenes

Doug’s Varin leads with a bright, fresh flavor: zesty citrus and clean pine over an earthy, spicy base, with a sweet, woody finish. It is a lively, aromatic sativa, and a good cure really lifts that citrus-pine brightness in the jar and on the inhale.

Its terpene profile shapes that flavor. Alpha-pinene drives the fresh, sharp pine note, while caryophyllene adds the warm, peppery spice and myrcene rounds it out with an earthy, herbal base. The zesty citrus and sweet-woody notes round out the profile on top of those terpenes, giving Doug’s Varin its fresh, spicy-citrus character.

Effects and Best Use

With its high 22-24% THC and almost pure 90/10 sativa make-up, Doug’s Varin delivers a clear, energizing experience. It is reported as creative, energetic and euphoric, a bright, heady lift with very little heaviness, which makes it a daytime strain for staying active, social and focused. Its potency is high, so a little goes a long way.

That creative, energetic, euphoric profile makes it a classic wake-and-work sativa, good for creative projects, conversation and getting things done while enjoying its fresh citrus-pine flavor. The combination of an uplifting effect, a bright aromatic profile and a high yield is exactly why growers take on its longer flowering time.

Common Problems and Pro Tips

Doug’s Varin is beginner-friendly in that it is a sturdy, feminized plant, but its two challenges are height and patience. As a 90% sativa it stretches hard after the flip, so flip it earlier than an indica, top it and use low-stress training to keep the canopy even and the height manageable in a tent. Supporting the tall colas late in flower stops them folding under their own length.

The other thing to plan for is the long 10 to 12 week flowering window. Don’t rush the harvest: let the trichomes turn mostly cloudy before you cut, and keep feeding and airflow steady right through the extended finish. The airy bud structure resists mold well, but a long flower is a long exposure, so good ventilation matters all the way to the end.

As a pro tip, lean into what makes this plant special: protect those bright citrus-pine terpenes with a gentle dry and a full three to four week cure, go easy on the nutrients late so the flavor stays clean, and save the frosty trim for concentrates. Start seedlings gently to avoid transplant stress, then give it the light, space and time a long-flowering sativa needs.

Multiple Dougs Varin cannabis plants in the flowering phase with dense foliage and early bud formation.

FAQ

Is Doug’s Varin a feminized strain?

Yes. Doug’s Varin is a feminized photoperiod strain, so every seed grows into a flowering female and there is no sexing and no males to remove. Because it flowers on the light cycle rather than on age, you veg it under long 18/6 days for as long as you like, then switch to 12/12 to start flowering, which lets you control its final size and yield.

How tall does Doug’s Varin grow?

Doug’s Varin reaches around 1.5 m by harvest, but as a 90% sativa it stretches hard after the flip, often close to doubling in height during early flower. Flip it a little earlier, top it and use low-stress training to spread the canopy and keep the height manageable, especially indoors in a tent where vertical space is limited.

How long does Doug’s Varin take to flower?

Doug’s Varin flowers in about 10 to 12 weeks once you switch it to a 12/12 light cycle, a long window typical of a near-pure sativa. Outdoors in the Northern Hemisphere it is ready to harvest around November. Be patient and let the trichomes turn mostly cloudy before you cut, as rushing this one costs you both yield and flavor.

What does Doug’s Varin taste like?

Doug’s Varin has a bright, fresh flavor of zesty citrus and clean pine over an earthy, spicy base with a sweet, woody finish. Alpha-pinene drives the pine, caryophyllene adds the peppery spice, and myrcene brings an earthy depth. A proper three to four week cure really lifts that citrus-pine brightness on the inhale.

How much does Doug’s Varin yield?

Doug’s Varin is a high yielder for a sativa, giving around 500-600 g/m² indoors and anywhere from 50 to 300 g per plant outdoors. The wide outdoor range reflects how much it rewards a long, warm season: give it more sun, space and time and it finishes bigger. Keep the tall colas supported and the canopy open for the best results.

Is Doug’s Varin good for beginners?

Doug’s Varin is beginner-friendly as a sturdy feminized plant with no sexing to worry about, but it does ask for patience. Its sativa stretch means you need to train for height, and its 10 to 12 week flowering is longer than most. A new grower who plans for the height and the long finish will do well with it.

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