Indoor cannabis plants of the White Widow FV strain, featuring dense buds and lush green leaves under grow lights in a reflective tent

How to Grow White Widow Fast Version

White Widow Fast Version is a fast-flowering take on the legendary White Widow, built to finish in roughly 7–8 weeks instead of the usual wait. It keeps the classic earthy, woody, herbal flavour and a relaxed, soothing effect on a compact, resin-coated plant that stays easy to manage.

Bred by crossing White Widow with a fast-flowering parent, this is a 60% indica, 40% sativa hybrid that carries a medium 15–20% THC. The result is a frosty, dependable plant that keeps the famous White Widow character while trimming weeks off the bloom cycle, so you reach harvest sooner.

Because it is quick, compact and forgiving, it is a rewarding grow at any level. You can see the full genetics and buy White Widow Fast Version seeds on the strain page, and browse more of our fast-flowering seeds alongside it.

Strain Profile at a Glance

THC15–20% (medium)
LineageWhite Widow x Fast
TypeFast Version (fast-flowering photoperiod)
Genetics60% Indica / 40% Sativa
ClimateTemperate
Flowering time7–8 weeks
HarvestAll season
Height3.94 ft / 1.2 m
YieldGenerous
Yield indoor1.15–1.47 oz/ft² (350–450 g/m²)
Yield outdoor21.16 oz/plant (600 g/plant)
Grow difficultyBeginner-friendly
FlavorsEarthy, Herbal, Spicy, Woody
EffectsRelaxed, Deeply Soothing, Night-time

What Makes It a Fast Version

The “Fast Version” tag means White Widow has been crossed with a fast-flowering parent to shorten the bloom cycle. You still grow it as a normal photoperiod plant, but it races through flowering in about 7–8 weeks, where the original White Widow often needs longer. That speed is its headline advantage.

For a grower, the appeal is a near auto-like turnaround without giving up photoperiod control. You keep the ability to veg as long or as short as you like, shaping the plant’s final size, while still reaching harvest quickly. It sits in our fast-flowering seeds range for exactly that reason.

Climate and Where to Grow It

White Widow Fast Version is happiest in a temperate climate with good light and steady airflow. It is a sturdy, adaptable plant that performs both outdoors in a mild season and in a controlled indoor tent, staying compact at around 1.2 m, which keeps it manageable in tight spaces.

Outdoors its fast genetics let it finish across most of the season, and a single plant can bring in a generous 600 g in a good spot. Indoors it produces a solid 350–450 g/m². Keep humidity in check as the dense, frosty buds fill in, since tight flowers in a warm, humid room are worth protecting from bud rot.

Indoors, aim for daytime temperatures around 70–82°F (21–28°C) and keep steady airflow moving through the canopy. Its short, bushy stature makes it a strong fit for height-limited setups and for packing a lot of weight into a small footprint, which is one more reason it suits beginners.

Growing Fast Version Seeds

It is worth being clear: White Widow Fast Version is not an autoflower. It is a photoperiod plant that simply blooms faster than usual. Grow it under a long day (around 18 hours of light) through the vegetative stage, then switch to a 12/12 light cycle to trigger flowering, just as you would with any photoperiod strain.

The difference is speed. Once you flip to 12/12, the fast genetics push the plant through bloom in roughly 7–8 weeks. A longer veg builds a bigger frame and a bigger harvest, while a shorter veg keeps this compact plant very small, so you can tune the final size to your space before you make the flip.

Feeding Schedule (EC Guide)

This is a vigorous plant that packs on resinous buds, so you can feed it steadily through bloom. Start low, build up as the plant asks for more, and taper off for the final flush so the clean earthy, woody flavour stays bright and the smoke finishes smooth.

StageEC (mS/cm)Notes
Seedling0.4–0.6Very light feed, focus on healthy root growth
Vegetative growth0.8–1.2Build the frame, raise nitrogen gradually
Early flower1.2–1.4Shift toward bloom nutrients (P and K)
Full flower1.4–1.6Peak bloom feed while the buds swell
Flush0.0–0.4Plain water for the final 1–2 weeks

Flowering and Harvest

Once you flip to 12/12, bloom runs a fast 7–8 weeks. As a indica-leaning hybrid, it shows a short stretch early in bloom, then settles into a dense, heavy bud set that fills out compact and frosty, true to its White Widow heritage and its skunk-family roots.

This is a generous producer for its size, so keep the canopy open and support the heavier colas if needed. 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 it 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 buds staying damp in the middle while the outside dries out, which protects both the 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 earthy, woody depth forward and smooths the smoke, which is exactly what this classic White Widow cross deserves after a quick, clean finish.

What to Do With Your Trim

Don’t bin the sugar leaves you remove while manicuring. White Widow Fast Version is a frosty, resin-rich plant, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of concentrate from material most growers would otherwise throw away.

Flavor and Terpenes

White Widow Fast Version has an earthy, woody flavour with a clear herbal edge and a touch of spice, the classic White Widow character rather than anything sweet or fruity. It is a grounded, savoury taste that pairs well with the plant’s relaxed, soothing effect.

It carries a layered terpene stack, and the ones that shape the flavour stand out clearly. Pinene drives a fresh, resinous herbal lift; caryophyllene brings the peppery, spicy warmth; guaiol adds a woody, earthy base; humulene deepens that earthy, hoppy note; isopulegol lends a cool, herbal-woody nuance; and neryl acetate rounds it off with a soft floral-herbal touch.

Effects and Best Use

With its indica-leaning 60/40 genetics, White Widow Fast Version is reported as relaxed, deeply soothing and best suited to the evening, a mellow body-forward character that helps you unwind. It is a classic end-of-day profile that eases tension without feeling overwhelming thanks to its medium potency.

At a medium 15–20% THC it is approachable rather than overpowering, which suits less experienced users and anyone who prefers a gentler ceiling. That balance, the compact size, the generous yield and the quick 7–8 week finish are exactly why growers reach for the Fast Version.

OG Glue cannabis buds with a thick resin coating and vibrant orange pistils, growing in a greenhouse with natural light.

FAQ

Is White Widow Fast Version an autoflower?

No. White Widow Fast Version is a fast-flowering photoperiod plant, not an autoflower. It still flowers when you switch the light cycle to 12/12, but its fast genetics shorten bloom to around 7–8 weeks, giving you an auto-like quick turnaround while keeping full photoperiod control over size.

How long does White Widow Fast Version take to flower?

Once you flip to a 12/12 light cycle, bloom runs about 7–8 weeks, which is noticeably faster than the original White Widow. Outdoors it can finish across most of the season thanks to its quick genetics, so you can often fit in an extra harvest compared with slower photoperiod strains.

Is White Widow Fast Version indica or sativa?

It leans indica, at roughly 60% indica and 40% sativa, which shows in its relaxed, soothing character and compact, bushy frame. That indica tilt makes it a comfortable evening strain, while the sativa share keeps the plant productive and stops the effect feeling completely heavy or one-dimensional.

Is White Widow Fast Version good for beginners?

Yes. It is compact, resilient and forgiving, and its short 7–8 week bloom means less time exposed to problems, which makes it very beginner-friendly. Keep the canopy open for airflow and watch humidity as the frosty buds swell, and it rewards new growers with a reliable, resin-rich harvest.

What does White Widow Fast Version taste like?

Expect an earthy, woody profile with a herbal edge and a hint of spice, the classic White Widow character rather than anything sweet or fruity. Caryophyllene brings the peppery, spicy warmth, while guaiol and humulene carry the woody, earthy depth and pinene adds a fresh, resinous herbal lift.

How is Fast Version different from regular White Widow?

Fast Version is bred by crossing White Widow with a fast-flowering parent, which keeps the familiar flavor and effect but cuts bloom time to around 7–8 weeks. You still grow it as a photoperiod plant and flip to 12/12, so you gain speed without losing control over the plant’s size.

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