Description
Alien Cookies Feminized strain data sheet
| Genetics | Alien Dawg x Girl Scout Cookies |
|---|---|
| Type | Hybrid, slightly indica leaning (about 55/45) |
| THC | 20%–26% |
| CBD | Under 1% |
| Flowering time | 9–10 weeks (60 to 70 days) |
| Outdoor harvest | Early to mid October |
| Height indoor / outdoor | 80–130 cm / 150–200 cm |
| Yield indoor / outdoor | 400–500 g/m² / 400–600 g per plant |
| Difficulty | Moderate |
| Climate | Warm and dry; protect from autumn rain |
| Best for | Resin, cookie and diesel flavour, relaxed evenings |
Alien Cookies Feminized at a glance: Alien Cookies is a slightly indica leaning hybrid of about 55/45 that flowers in 9 to 10 weeks, tests 20% to 26% THC and yields 400 to 500 g/m² of dense, frosty buds that smell of sweet cookie dough, earthy diesel and a faint herbal pine.
The original behind MAC, stocked on this side of the border
Alien Cookies is a strain people usually meet second hand, as a name in MAC’s family tree, and the original can be hard to track down. We keep it in our Vancouver, BC seed bank, so Canadian growers can buy the parent without ordering from abroad. Seeds leave in plain packaging the day payment arrives, travel only within Canada, and reach most addresses in 3 to 7 business days. We check every lot for viability, the 80% germination guarantee applies, and 10 and 25 seed packs are buy one get one free.
Where Alien Cookies comes from
Alien Cookies strain is a cross of Alien Dawg and Girl Scout Cookies. Alien Dawg comes from Chemdog and Alien Technology, an Afghan line, and brings sharp diesel, hash-like earthiness and a strong body effect. Girl Scout Cookies adds the sweet dough flavour, the heavy resin and the euphoric start that made it one of the defining strains of the 2010s. The combination first circulated on the West Coast around the middle of that decade.
Alien Cookies is best known today as the mother of MAC, or Miracle Alien Cookies, which was made by crossing an Alien Cookies plant with a Colombian and Starfighter male. MAC is brighter and more citrus driven; Alien Cookies is the earthier, more grounded original. Another cross sold under the same name uses Animal Cookies and Kush Mints, but the Alien Dawg and Girl Scout Cookies version is the one most databases and growers mean.
Alien Cookies strain effects and experience
Alien Cookies opens with a light, happy euphoria and a slightly giggly mood that comes from the Cookies side. Within half an hour that settles into a calm, comfortable body feel that loosens tension without knocking you out. It is a good fit for the evening, a slow dinner or a long conversation, and many people find it pleasantly unhurried.
With THC usually between 20% and 26% it is strong without being extreme. Larger sessions bring out the Alien Dawg heaviness, and dry mouth and dry eyes are the side effects users mention most often.
Alien Cookies flavour, aroma and appearance
The nose is a mix of sweet and sharp. Up front there is warm cookie dough and a touch of mint, followed by earthy diesel, a hashy Afghan note and a herbal pine edge that grows stronger when you break a bud. The smoke is dense and smooth, sweet on the inhale with a peppery fuel finish. Caryophyllene, limonene and myrcene are the terpenes most often reported for it.
Buds are compact and heavy, with a thick coat of trichomes that gives them a sandy, almost grey sheen. The calyxes are mostly forest green, with orange to rust pistils and, in cooler rooms, some purple on the sugar leaves. The resin is greasy to the touch, which tells you why it was chosen as a breeding mother.
Growing Alien Cookies in Canada
Indoors
Indoors Alien Cookies grows into a medium, bushy plant of 80 to 130 cm with short internodes. A four week veg fills most tents. Keep temperatures between 22 and 26 degrees, and aim for 50% to 55% humidity in early flower, dropping to around 40% from week six. The Cookies side can show yellowing if pH drifts, so check runoff regularly in coco or soil. For a solid base routine, our guide to growing marijuana seeds walks through each stage.
Outdoors, by region
A 9 to 10 week flowering period limits Alien Cookies to Canada’s mildest growing areas. On the Saanich Peninsula, the Sunshine Coast and around Chilliwack, plants that go out in early June usually finish between the first and the middle of October. In southern Ontario, Essex County, Pelee Island and the Niagara region give the best chance, provided the plant is sheltered from prolonged rain in the final weeks. In the Prairies, northern regions, Quebec and the Atlantic provinces, an indoor tent or a heated greenhouse is the reliable option, as early frosts and autumn storms will catch the buds before they finish.
Height and training
Alien Cookies does not stretch much, around 1.5 times, so it suits growers with limited height. Topping once or twice and using low stress training to open the centre gives six to eight even colas. Defoliate lightly in week three of flower so light and air reach the inner buds; the dense structure makes airflow more important than with fluffier strains.
Flowering and harvest cues
Plan on 60 to 70 days from the flip. The pistils colour early, so rely on a loupe. Harvest at mostly cloudy trichomes with 10% to 15% amber for a balanced effect, or wait a few more days for a heavier, sleepier result. A slow 12 to 14 day dry and a long cure bring out the sweet dough over the fuel.
Alien Cookies yield indoors and outdoors
Expect 400 to 500 g/m² indoors and 400 to 600 g per plant outdoors in suitable regions. It is not a heavy yielder, but the resin is outstanding, and Alien Cookies is a favourite for rosin presses and hash making, where the return from each plant is unusually high.
Who Alien Cookies is for, and who should pick something else
Choose Alien Cookies if you like earthy, hashy flavours with a sweet cookie edge, want a relaxing evening strain, or are curious about the genetics behind MAC. It suits growers with a little experience who can manage humidity in late flower.
Pick something else if you need a fast outdoor plant for a short northern season, or if you want a bright, energetic daytime strain. In that case its child MAC is livelier, while Girl Scout Cookies offers the classic cookie experience.
How Alien Cookies compares
Compared with its parent Girl Scout Cookies, Alien Cookies is earthier and heavier, with more fuel in the flavour and more body in the effect. Alien OG shares the Alien Technology heritage but swaps the cookie sweetness for lemon and pine. For other balanced plants of this kind, explore our hybrid feminized seeds.
Frequently asked questions about Alien Cookies
What is Alien Cookies strain?
Alien Cookies is a hybrid cannabis strain made by crossing Alien Dawg with Girl Scout Cookies. It is known for heavy resin, a cookie dough and diesel flavour, and a relaxing effect. It is also the mother of the popular MAC strain.
Is Alien Cookies the same as MAC?
No, Alien Cookies is a parent of MAC rather than the same strain. MAC, or Miracle Alien Cookies, came from crossing Alien Cookies with a Colombian and Starfighter male. MAC is more citrus and energetic, while Alien Cookies is earthier and calmer.
Is Alien Cookies indica or sativa?
Alien Cookies is a hybrid that leans slightly indica, around 55/45. It begins with a happy, giggly lift from Girl Scout Cookies and finishes with a relaxed body feel from Alien Dawg. Larger doses feel heavier.
How much THC is in Alien Cookies?
Alien Cookies usually tests between 20% and 26% THC, with CBD under 1%. Some dispensary batches report higher numbers, but those are outliers. Start small if you are not used to strains in this range.
Why growers who chase resin start with Alien Cookies from MJ Seeds Canada
Parent strains are where serious growers look when they want the real character of a family, and Alien Cookies is easier to find here than you might expect. We ship it from Vancouver, BC in unbranded packaging to every province in 3 to 7 business days. Free delivery kicks in at $200, and the $30 tracked and insured option gives you a tracking number and one free reshipment.
We have been in business since 2009, and we test each seed lot for viability before it is listed. Follow the cup of water and paper towel instructions in our germination guide and your order is protected by the 80% germination guarantee. On 10 and 25 seed packs, buy one get one free lets you grow Alien Cookies next to MAC for a side by side comparison, and orders over $420 come with 10 free seeds.
Payment options include Interac e-Transfer, credit card, Bitcoin and cash. If you have a question about pressing, drying or timing your harvest, our Vancouver team is on the phone, email, WhatsApp and live chat seven days a week.





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