White Widow feminized cannabis plant covered in white trichomes

Feminized seeds

Brazilian sativa landracexSouth Indian indica

THC: 18-20%
Bloom: 8-10 wks
Yield/sq ft: 1.3-1.6 oz
Level: Moderate

White Widow Feminized Seeds

From $65.00

Earthy pine, cracked pepper and a blanket of white resin. A balanced feminized hybrid of Brazilian and South Indian landraces that finishes in 8-10 weeks.

THC18-20%
Bloom8-10 weeks
Height3-4 ft indoors
LevelModerate

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SKU: BMS-WW-FEM Categories: Feminized Seeds, High Yield Seeds, Hybrid Seeds, Outdoor Seeds

Quick answerWhite Widow is a balanced hybrid, slightly sativa-leaning, bred from a Brazilian sativa landrace and a South Indian indica and made famous in 1990s Amsterdam. It is known for a thick coat of white trichomes, an earthy, woody and piney aroma, reported THC around 18-20%, and an 8-10 week flowering time indoors.

White Widow at a glance

THC18-20%Supplier reported. Strong, yet smooth and well balanced.

Flowering8-10 wksFrom the switch to 12/12

Indoor yield1.3-1.6 ozPer sq ft, a steady producer

Height3-4 ftIndoors. 4-6 ft outdoors

Outdoor harvestEarly OctEarly to mid October in most states

Known forA blanket of white trichomesThe frosty coat that gave the strain its name, visible well before harvest

What is the White Widow strain?

White Widow is one of the strains that defined the Amsterdam coffeeshop era. It became famous there in the 1990s and won the 1995 Cannabis Cup. Three decades on, growers still use it as a yardstick for resin production and plant balance.

Its roots are old school: a Brazilian sativa landrace crossed with a resin-heavy South Indian indica. The Brazilian side brings a clear, upbeat lift and some stretch. The Indian side adds structure, a woody, earthy base and much of the frost. Together they make a balanced hybrid that leans slightly sativa, at about 60/40.

The name describes the look. By mid flower the buds and sugar leaves carry so many trichomes that they appear dusted in white. That resin, plus a forgiving frame, good mold resistance and steady yields, made White Widow a parent of countless modern hybrids. These feminized seeds are bred to produce female plants, so every seed you sprout is headed for flower.

Brazilian sativaSouth Indian indica

Brazilian sativa x South Indian indicaFeminized selection

White Widow

How it feels

Consumers commonly describe a bright, social lift up front that settles into easy, even relaxation. It tends to feel clear rather than heavy, which is why many people reach for it earlier in the day.

First few minutesBright, talkative start
A quick wave of euphoria and energy that often gets conversation going.
At the peakCreative focus
The head stays clear enough for music, projects or a long walk.
Later onEasy landing
The indica side shows up as loose, calm relaxation with little couch lock.

Commonly reportedEuphoricEnergeticCreativeRelaxed

Start low, especially if classic hybrids in the 18-20% range are new to you. Commonly reported downsides include dry mouth and dry eyes, and at high doses some people report racing thoughts or anxiety. General reports, not medical guidance.

Aroma, flavor and terpenes

Earthy and woody at the core, with fresh pine on top and a peppery, spicy finish. This is not a candy strain; think damp forest and fresh-cut lumber. It gets pungent in late flower, so run a carbon filter indoors.

Flavor notesEarthyWoodyPineSpicy

MyrceneEarth, musk

Lays down the earthy, slightly sweet base.

CaryophyllenePepper, wood

Adds the spicy, peppery bite on the exhale.

PinenePine, fresh resin

Gives the sharp, clean pine top note.

Hang whole branches to dry at about 60°F and 60% humidity, then cure in jars for at least two weeks so the pine and spice do not flatten out.

How to grow White Widow

Rated moderate. It is an evenly branched, forgiving plant with good mold resistance; the real work is managing its stretch and keeping the canopy level.

Indoors

Veg climate: 72-80°F, 55-65% RH
Flower climate: 68-80°F, 40-50% RH
Stretch: Moderate; leave headroom after the flip
Light: 700-900 PPFD in flower (LED)
Training: Top once, then LST or a SCROG net
Feeding: Light to moderate; ease off nitrogen late

Outdoors

Plant out: After last frost, nights above 50°F
Size: 4-6 ft in full sun
Harvest: Early to mid October
Best fit: Sunny sites in USDA 5-10
Strength: Good mold resistance for its size
Watch for: Caterpillars and long rainy spells

Read the full indoor grow guide

White Widow fits most home setups. Indoors it usually finishes at 3 to 4 feet, which works in a 3×3 or 4×4 ft tent with room left for the light. Rated moderate, it suits growers with a run or two behind them, though a careful beginner can still bring it home.

Environment

Vegetative: 72-80°F days with 55-65% relative humidity.
Flower: 68-80°F and 40-50% RH. It resists mold better than most, but steady airflow still matters as the buds fatten.
Odor: an exhaust fan with a carbon filter from about the third week of flower.

Light and training

Give it 600-800 PPFD in late veg and 700-900 PPFD in flower under LED. The sativa side brings some stretch in the first weeks after the flip, so top once at the fourth or fifth node, then use low-stress training or a SCROG net to keep the tops level. An even canopy is the simplest way to push toward 1.3-1.6 oz per square foot.

Feeding

White Widow is not a hungry plant. A moderate nutrient line through veg, with nitrogen tapering by mid flower, keeps leaves green without burnt tips. Add cal-mag in coco or under LED.

Harvest timing

Most plants are ready 8 to 10 weeks after the switch to 12/12. Because the whole plant is frosted, check trichomes on the buds rather than the sugar leaves: mostly cloudy heads keep the effect bright, while some amber nudges it toward a calmer finish.

Seed to jar in about 22 weeks

A typical indoor run. You choose how long to veg; flowering time is set by the genetics.

Germinate1 wkSeedling2 wkVegetate5 wkFlower10 wkDry and cure4 wk

Week 1Week 22

Germinate weeks 1-1
Paper towel at 75-80°F
Seedling weeks 2-3
Soft light, 65-70% RH
Vegetate weeks 4-8
Top at node 4-5, train flat
Flower weeks 9-18
8-10 weeks after the flip
Dry and cure weeks 19-22
Slow dry, then jar cure

Growing White Widow outdoors in the US

White Widow is one of the more dependable photoperiod strains to grow outside. Plants usually reach 4 to 6 feet and can produce roughly 19 to 21 ounces each in full sun, finishing in early to mid October across much of the country. Set plants out after your last spring frost, once nights stay above about 50°F.

Its mold resistance gives it an edge where late summers turn humid, but it is not immune. In wet regions, thin interior growth in August, space plants for airflow and watch the forecast during the final two weeks. Our outdoor planting guide lists planting windows for every USDA zone.

Before you plant, confirm your state’s home-grow rules and plant limits, which differ a great deal from one state to the next.

Will it finish where you live?

ExcellentInland California and the Southwest

Dry, sunny autumns let it ripen fully in early October with little mold pressure.

GoodColorado Front Range and Utah valleys

Strong sun and dry air suit it; plant early so it finishes before high-elevation frost.

GoodMidwest

Finishes ahead of most hard frosts if it goes in the ground by early June.

GoodNortheast

Its mold resistance helps through humid Septembers; thin the canopy for airflow.

FairSoutheast and Gulf Coast

The long season is a plus, but heavy humidity and storms call for wide spacing.

Check your state's home-grow rules before you plant. Laws by state

Who White Widow is for

Fans of the classicsAnyone who wants to grow the 1990s Amsterdam benchmark behind so many modern hybrids.
Resin and hash makersA heavy trichome coat leaves plenty to collect for dry sift or ice water hash.
Outdoor growers in mixed climatesGood mold resistance and an early to mid October finish suit much of the US.
Tent growers stepping upA moderate grow that teaches topping and canopy control in a 3×3 or 4×4 ft tent.

Keep exploring

Feminized seedsFemale-only seeds for every grow style Hybrid seedsBalanced genetics that do a bit of everything High-yield seedsStrains bred to fill the jar How to grow indoorsTent setup, lighting and feeding basics Yield calculatorEstimate a harvest from your space and light

White Widow strain data sheet

Genetics

Seed type: Feminized
Genetics: Balanced hybrid, slightly sativa-leaning (about 60% sativa, 40% indica)
Lineage: Brazilian sativa landrace x South Indian indica

Potency & profile

THC: 18-20% (supplier reported)
CBD: 0.1-0.2%
Commonly reported effects: Creative, Energetic, Euphoric, Relaxed
Flavors: Earthy, Pine, Spicy, Woody
Dominant terpenes: Caryophyllene, Myrcene, Pinene

Growing

Flowering time: 8-10 weeks
Height: 3-4 ft indoors, 4-6 ft outdoors
Difficulty: Moderate
Climate: Temperate to warm, 68-80°F, 40-50% RH in flower
Best USDA zones: 5-10 (good mold resistance)
Outdoor harvest: Early to mid October

Yield

Indoor yield: 1.3-1.6 oz per sq ft
Outdoor yield: 19-21 oz per plant

Ranges are typical for this strain and vary with phenotype, environment and technique.

White Widow FAQ

Is White Widow indica or sativa?

White Widow is a balanced hybrid that leans slightly sativa, usually described as about 60% sativa and 40% indica. It comes from a Brazilian sativa landrace crossed with a South Indian indica, so it grows evenly and its effects mix a clear head with mild body calm.

How strong is White Widow?

Our supplier reports THC around 18-20%, with CBD at 0.1-0.2%. That is strong without being extreme by modern standards, and results vary with phenotype, growing conditions and harvest timing.

How long does White Widow take to flower?

Indoors, most plants finish 8 to 10 weeks after you switch the lights to 12/12. Outdoors in the US, expect a harvest in early to mid October depending on your latitude and the weather.

How much does White Widow yield?

A dialed-in indoor setup can produce roughly 1.3 to 1.6 ounces per square foot. Outdoors, healthy plants in full sun can produce roughly 19 to 21 ounces each. Light intensity, training and spacing make the biggest difference.

Is White Widow good for beginners?

It is rated moderate. The plant is forgiving and shows good mold resistance, but its stretch after the flip and its 8-10 week bloom reward a grower who can manage height and canopy. A careful first-timer with a tent can still do well.

What does White Widow smell and taste like?

Expect an earthy, woody base with fresh pine and a peppery, spicy finish rather than sweet or fruity notes. Myrcene, caryophyllene and pinene are the terpenes most often reported.

Can I grow White Widow outdoors in the US?

Yes. It does best where autumns are dry and sunny, such as inland California, the Southwest and Colorado, and its mold resistance helps in the Midwest and Northeast. Plant after your last frost, plan on an early to mid October harvest and check your state's home-grow rules first.

Why is it called White Widow?

The name comes from its look. By mid flower the buds and sugar leaves carry so many trichomes that they appear frosted white. That resin helped make it a 1990s Amsterdam icon, and it won the 1995 Cannabis Cup.

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