How to Grow Grease Monkey
Grease Monkey is a balanced feminized hybrid prized for its sticky, resin-caked buds and a relaxed, soothing effect. It carries a medium 14–20% THC, a diesel, earthy and sweet vanilla flavor, and a relaxed, soothing, night-time character on a sturdy, generous plant with elite GG4 and Cookies & Cream heritage.
Bred from a cross of GG4 x Cookies & Cream, Grease Monkey is a 50% indica, 50% sativa feminized strain with serious pedigree. The GG4 side drives its sticky, fuel-heavy resin and diesel punch, while Cookies & Cream layers a sweet, creamy vanilla depth over the top, giving you a dense, frosty plant that finishes heavy and smells unmistakably of diesel and dessert.
Recommended Strains
Grease Monkey
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THC | 14% - 20% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 50% Indica / 50% Sativa |
Green Crack
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THC | 21% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 35% Indica / 65% Sativa |
Because it is sturdy, forgiving and productive, Grease Monkey is a genuinely easy grow. You can see the full genetics and buy Grease Monkey feminized seeds on the strain page, and it also sits among our best seeds for beginners if this is one of your first grows.
Strain Profile at a Glance
| THC | 14–20% (medium) |
|---|---|
| Lineage | GG4 x Cookies & Cream |
| Type | Feminized |
| Genetics | 50% Indica / 50% Sativa |
| Climate | Temperate / Mediterranean |
| Flowering time | 8–10 weeks |
| Harvest | October |
| Height | 4.92 ft / 1.5 m |
| Yield indoor | 1.64 oz/ft² (500 g/m²) |
| Yield outdoor | 17.64 oz/plant (500 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Diesel, Earthy, Vanilla |
| Effects | Relaxed, Soothing, Night-time |
Promos & Deals
Climate and Where to Grow It
Grease Monkey does best in a temperate or Mediterranean climate with plenty of light and good airflow. It is a sturdy, adaptable plant that performs both outdoors in a warm season and in a controlled indoor tent, reaching a medium 1.5 m, so it fits most spaces without demanding a tall room as it moves into flower.
Outdoors it finishes around mid-October and rewards a good spot with about 500 g per plant, while indoors it produces a dependable 500 g/m². Those are generous numbers for a plant this manageable, but they depend on light, pot size and canopy health, so give it room and feed it steadily to get the most from it.
Indoors, aim for daytime temperatures around 70–82°F (21–28°C) and keep steady airflow moving through the canopy. Its dense, resin-heavy buds hold moisture, so drop relative humidity toward 40% as harvest nears to protect the sticky flowers from mould, and give the branches a little support as the colas fatten.
Growing Feminized Photoperiod Seeds
As a feminized strain, every seed grows into a flowering female, so there is no need to sex the plants or remove males. That keeps the grow simple and means no wasted time or tent space on plants you would only cull later, which is a big part of why Grease Monkey is so beginner-friendly.
Being a photoperiod plant, Grease Monkey flowers on a light change rather than on age. Grow it under a long day (around 18 hours of light) through the vegetative stage, then switch to a 12/12 cycle to trigger flowering. A longer veg builds a bigger frame and a heavier harvest, while a shorter veg keeps the plant more compact in a small space.
Feeding Schedule (EC Guide)
This is a resinous, productive hybrid that sets dense, sticky buds, so feed it steadily but without overdoing it. Start low, build up as the plant asks for more, and taper right off for the final flush so the diesel-and-vanilla flavor comes through clean and the smoke finishes smooth.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Build the frame, raise nitrogen gradually |
| Early flower | 1.2–1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4–1.6 | Peak bloom feed while the sticky buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Flowering and Harvest
Once you flip to 12/12, bloom runs about 8–10 weeks. As a balanced hybrid it stays sturdy and bushy through flower, thickening its resin coat and filling in dense, chunky buds that gain weight and develop the diesel-and-vanilla aroma through the second half of bloom.
Give the colas light support as they fatten, and keep the canopy open so light reaches the lower flowers. Topping or a ScrOG net keeps the 1.5 m height in check and evens out the lower buds. Harvest when most trichomes have turned cloudy with a few amber heads, and run a short plain-water flush in the last week or two.
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, sticky buds staying damp in the middle while the outside dries out, which protects both the diesel-vanilla 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 sweet, creamy vanilla and diesel notes forward and smooths the smoke, which is exactly what this Kush-and-Cookies hybrid deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Grease Monkey is famously sticky and resin-rich, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of sweet, diesel-scented concentrate from material most growers would otherwise throw away.
Flavor and Terpenes
Grease Monkey has a rich, moreish profile that lives up to its name: a pungent diesel-and-fuel punch over an earthy base, finished with a sweet, creamy vanilla note that softens the whole thing. It is a bold, layered taste rather than a light or fruity one, carried straight from its GG4 and Cookies & Cream parents into the cured flower.
Its terpene profile is led by caryophyllene, which drives the peppery, diesel-like bite, with myrcene and humulene adding the earthy, grounding depth, pinene a clean, fresh lift, linalool a soft touch that supports the creamy sweetness, and terpinolene rounding out the aroma with a fresh, complex edge. The sweet vanilla side comes through from the Cookies & Cream heritage layered over that fuel-and-earth terpene base.
Effects and Best Use
With its balanced 50/50 genetics, Grease Monkey is reported as relaxed and soothing, a comfortable, full-bodied wind-down that eases away the day. It is best kept for the evening, though the even hybrid balance adds a light mental lift, so it can still spark a little creativity early on before settling into a mellow, body-focused relaxation.
At a medium 14–20% THC it is potent but approachable, which suits both newer users and anyone who prefers a balanced, manageable high. That character, the bold diesel-vanilla flavor, the elite GG4 and Cookies & Cream heritage and the sturdy, generous plant are exactly why growers reach for Grease Monkey.
Common Problems and Pro Tips
The main thing to watch with Grease Monkey is humidity around its dense, resin-heavy buds. Those sticky flowers trap moisture, so bud rot is the most common problem in the final weeks of flower. Drop relative humidity toward 40% as harvest nears, run steady airflow, and a light defoliation of the inner canopy helps air reach the thickest colas late in bloom.
Height and canopy management are the other things to plan for. At 1.5 m with heavy, sticky colas, the plant can stretch and crowd a small tent, so top it or run a ScrOG net early to keep the height in check and spread the light evenly. That early structure is what turns its genetics into the full 500 g/m² indoors without the lower buds staying airy.
As a pro tip, protect the diesel-vanilla flavor that makes this strain special: keep the feed moderate rather than heavy, since overfeeding can mute the caryophyllene and the creamy sweet notes, and give it a clean plain-water flush in the final one to two weeks. Follow the trichomes rather than the calendar at the end, then dry slowly and cure for three to four weeks for the smoothest smoke.
FAQ
Is Grease Monkey indica or sativa?
Grease Monkey is a balanced hybrid, at 50% indica and 50% sativa, from its GG4 and Cookies & Cream parents. That even split shows in a relaxed, soothing body feel lifted by a light mental spark, so it works as an evening wind-down that still keeps you pleasant and functional rather than purely heavy and flattening.
What does Grease Monkey taste like?
Grease Monkey has a bold, rich flavor: a pungent diesel-and-fuel punch over an earthy base, finished with a sweet, creamy vanilla note. Caryophyllene drives the peppery diesel bite, myrcene and humulene add the earthy depth, and the vanilla sweetness comes through from its Cookies & Cream side layered over that fuel-heavy base.
What is Grease Monkey’s THC level?
Grease Monkey carries a medium THC of 14–20%, potent but approachable rather than overpowering. That level drives a relaxed, soothing, night-time effect that stays comfortable, so it suits both newer users and anyone who wants a balanced, manageable high rather than the heaviest possible hit at the end of the day.
How long does Grease Monkey take to flower?
About 8–10 weeks once you switch to a 12/12 light cycle, with outdoor plants finishing around mid-October. It is a photoperiod feminized strain, so it blooms on the light change rather than on age, thickening its resin coat and developing the diesel-and-vanilla aroma through the second half of flowering as the buds fill in.
How much does Grease Monkey yield?
Grease Monkey is a generous producer for a manageable plant, giving around 500 g/m² indoors and about 500 g per plant outdoors in a warm, temperate spot. Those numbers depend on light, pot size and canopy health, so give it room, top or ScrOG it early, and feed it steadily through flower to reach that level.
Is Grease Monkey easy to grow?
Yes, Grease Monkey is beginner-friendly and forgiving. As a feminized photoperiod strain it needs no sexing, grows sturdy, and rewards simple care with heavy, resinous buds. The main things to manage are its height and humidity late in flower, both handled with early topping or a ScrOG net, good airflow and a careful finish.
