How to Grow Ooze
Ooze, also sold as Black and White Cookie, is a flavorful, indica-dominant feminized strain that crosses Cookie, Cream and Secret Weapon. It is a 70/30 indica with a strong 19-23% THC, a bold diesel and vanilla flavor, and a happy, relaxed, uplifted effect. It brings together a creamy sweetness and a pungent diesel funk, making it a characterful and rewarding strain to grow.
As a feminized photoperiod strain, Ooze lets you control the grow: you keep it in vegetative growth under long days for as long as you like, then switch the lights to trigger flowering. It finishes flowering in about 8 to 10 weeks, and outdoors it is ready to harvest in October, giving you a flexible, resinous plant with a distinctive diesel-vanilla profile.
Recommended Strains
Flavorful, productive and beginner-friendly, Ooze is a rewarding strain to grow. You can see the full genetics and buy Ooze seeds on the strain page, and browse the rest of our feminized seeds alongside it.
Strain Profile at a Glance
| THC | 19-23% |
|---|---|
| Also known as | Black and White Cookie |
| Lineage | Cookie x Cream x Secret Weapon |
| Type | Feminized |
| Genetics | 70% Indica / 30% Sativa |
| Climate | Temperate |
| Flowering time | 8-10 weeks |
| Harvest | October (outdoors) |
| Height | 4.92 ft / 1.5 m |
| Yield indoor | 1.15-1.47 oz/ft² (350-450 g/m²) |
| Yield outdoor | 14.11-21.16 oz/plant (400-600 g/plant) |
| Grow difficulty | Easy, beginner-friendly |
| Flavors | Diesel, Vanilla |
| Effects | Happy, Relaxed, Uplifted |
Promos & Deals
Vegetative Growth and Flipping to Flower
Ooze is a feminized photoperiod strain, so it flowers in response to the light cycle rather than on its own schedule. You keep it in vegetative growth under long days, usually 18 hours of light to 6 of darkness, for as long as you want to build its size and structure. This is where you set the frame of the plant, so give it room, healthy roots and steady feeding before you make the switch.
When the plant is the size you want, you flip the lights to a 12/12 cycle, 12 hours of light and 12 of darkness, to trigger flowering. From that point it takes about 8 to 10 weeks to finish. Because it is a compact, indica-dominant plant that stays around 1.5 m, it responds well to light training during veg: gently opening the canopy early helps light reach more bud sites and lifts your final yield.
Climate and Where to Grow It
Ooze suits a warm, temperate climate and grows well both indoors and outdoors where it gets strong light and steady conditions. Because it is a photoperiod plant, outdoor growers should time it so it finishes in October, while indoor growers can run it year-round under a controlled light cycle. Its compact 1.5 m frame makes it easy to manage in a tent or in a sunny outdoor spot.
Its strong 19-23% THC and real popularity place it among our best high-THC seeds, and its compact, indica-dominant structure sits naturally in our indica seeds. Its cookie heritage places it among our kush strains, and as a stable, all-female line it belongs with our feminized seeds.
On yield it is a solid producer, giving around 350-450 g/m² indoors and 400-600 g per plant outdoors, so there is good weight here to go with the flavor. Keep temperatures around 68-80°F (20-27°C) and the humidity steady through flowering so the resinous, creamy buds ripen clean in its temperate window.
Feeding Schedule (EC Guide)
Ooze is a resinous plant that feeds moderately, so build up gradually rather than pushing it hard. Feed it steadily through veg, shift toward bloom nutrients as it starts flowering, then flush at the end so the diesel and vanilla notes come through clean. The ranges below are a starting guide; adjust to your water and medium.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.5-0.7 | Light feed while roots establish |
| Vegetative | 1.2-1.6 | Build nitrogen as the plant grows |
| Early flower | 1.5-1.8 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.7-2.0 | Peak bloom feed for resinous buds |
| Flush | 0.0-0.4 | Plain water for the final 1-2 weeks |
Flowering and Harvest
Once flipped to 12/12, Ooze flowers for about 8 to 10 weeks, and outdoors it is ready around October. It builds dense, frosty, resin-coated buds that develop a bold diesel aroma over a creamy vanilla base as they ripen. That contrast of pungent diesel funk and smooth vanilla is the signature of its Cookie, Cream and Secret Weapon heritage, and the resin it packs on is one of its calling cards.
Yields are solid, around 350-450 g/m² indoors and 400-600 g per plant outdoors on a well-grown specimen, so there is good weight to go with the flavor. Keep the buds supported and the canopy open so light reaches the lower sites, feed it well through flower, and harvest when most of the trichomes have turned cloudy with a few amber for the fullest diesel, vanilla flavor and the most rounded 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 matters with such dense, resinous buds, because they can stay damp in the middle while the outside dries, and a gentle dry protects the diesel and vanilla aroma that defines the strain.
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 full diesel-vanilla contrast and smooths the smoke, turning a freshly dried harvest into the bold, creamy result Ooze is known for.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Ooze is a resinous plant, so its trim is excellent for dry sift, bubble hash or rosin. That resin and its diesel-vanilla aroma make the trim genuinely valuable, turning offcuts into a potent, flavorful concentrate run rather than waste, a real bonus from such a characterful strain.
Flavor and Terpenes
Ooze leads with a bold diesel flavor over a smooth, creamy vanilla base, the striking contrast it inherits from its Cookie, Cream and Secret Weapon parents. It is a full-bodied, characterful smoke, and a good cure brings that diesel-vanilla character forward in the jar and on the inhale, with the creamy base rounding out the pungent diesel edge.
Its terpene profile frames that flavor. Caryophyllene adds a peppery, spicy warmth that drives the diesel side, while myrcene brings a soft, earthy, musky base underneath. Humulene lends an earthy, hoppy depth, alpha-pinene a fresh lift, and terpinolene a bright, slightly herbal note. The creamy vanilla sweetness itself comes through from its genetics, with these terpenes building the pungent, earthy frame around it.
Effects and Best Use
With its strong 19-23% THC and indica-dominant 70/30 make-up, Ooze delivers a flavorful, well-rounded experience. It is reported as happy, relaxed and uplifted, pairing a bright, good-natured lift with a comfortable, settled body. The potency is solid, so a measured dose goes a long way, especially for newer smokers who may prefer to start slow and build up.
That happy, relaxed, uplifted profile makes it a flexible choice for the afternoon or evening, well matched to its diesel, vanilla flavor. The combination of a bold, distinctive taste, a comfortable body and an easy grow is exactly why Ooze, also known as Black and White Cookie, has become such a well-loved strain.
Common Problems and Pro Tips
Ooze is forgiving and beginner-friendly, but its dense, resinous buds ask for a clean finish. In flowering, keep the air moving and the humidity steady so those tight, frosty colas ripen without trapping moisture at the heart of the bud. A tidy environment through the final weeks is the main thing that protects a plant this resinous and keeps the diesel-vanilla flavor clean.
Training pays off here: because it stays compact, light topping and low-stress training during veg open the canopy and spread the bud sites, which lifts your final yield. Support the dense colas as they fill out so the branches do not strain under the weight, and give the lower bud sites enough light to ripen evenly.
As a pro tip, feed it moderately rather than heavily, then flush properly at the end so the diesel and vanilla notes come through clean. Protect the terpenes with a full three to four week cure, save the resinous trim for concentrates, and harvest when most trichomes are cloudy with a few amber for a rich, flavorful result.
FAQ
Is Ooze the same as Black and White Cookie?
Yes. Ooze is also sold as Black and White Cookie, so the two names refer to the same strain. It is a feminized, indica-dominant cross of Cookie, Cream and Secret Weapon, known for its bold diesel and creamy vanilla flavor. Whichever name you see it under, you are looking at the same genetics and the same grow.
How much THC does Ooze have?
Ooze is a strong strain, testing from about 19% up to 23% THC depending on the phenotype and how it is grown. Combined with its indica-dominant 70/30 genetics, the result is a happy, relaxed, uplifted effect. The potency is solid rather than extreme, which makes it an approachable choice if you are newer to stronger strains.
Is Ooze a feminized strain?
Yes. Ooze is a feminized photoperiod strain, so it produces female plants and flowers in response to the light cycle. You keep it under long days to grow its size, then flip the lights to a 12/12 cycle to start flowering. That control lets you dial in exactly how big the plant gets before it blooms, which suits any grow space.
How long does Ooze take to flower?
Once you flip it to a 12/12 light cycle, Ooze flowers for about 8 to 10 weeks before it is ready to harvest. Outdoors, it finishes around October. Because it is a photoperiod plant, you control the vegetative stage, so you can grow it to the size you want before switching the lights to begin flowering.
What does Ooze taste like?
It has a bold diesel flavor over a smooth, creamy vanilla base, the striking contrast it gets from Cookie, Cream and Secret Weapon. Caryophyllene adds a peppery warmth, myrcene an earthy base, humulene a hoppy depth and terpinolene a fresh lift. A proper three to four week cure brings that diesel-vanilla character forward on the inhale, full-bodied and distinctive.
Is Ooze indica or sativa?
Ooze is indica-dominant, at a 70/30 split, so it grows as a compact, sturdy plant with dense, resinous buds, staying manageable at around 1.5 m and finishing in about 8 to 10 weeks of flowering. That balance shows in its happy, relaxed, uplifted effect, which pairs an upbeat head with a comfortable, settled body.
