Fatkid’s Cake

Fatkid's Cake Cannabis Seeds by Amsterdam Genetics

Fatkid's Cake is a feminised cannabis seed from Amsterdam Genetics that crosses Girl Scout Cookies with Cherry Pie to produce a 60/40 indica-dominant hybrid with a reported 29.9% THC average. She flowers in 8–9 weeks, grows between 1 and 2 metres tall, and delivers dense, trichome-coated buds with spicy, earthy aromas and sweet chocolate undertones. If you want serious potency from a plant that doesn't demand serious experience to grow, this is where you start.

Genetics and Flavour Profile of Fatkid's Cake

Girl Scout Cookies crossed with Cherry Pie — that's the lineage behind Fatkid's Cake, and you can taste both parents. The first thing you notice when handling the buds is a spicy, earthy aroma that fills the room before you've even ground anything. Break her open and those chocolate undertones come through — sweet but not cloying, more like a dark cocoa than a dessert counter. It's a terpene profile that makes you want to sit with it for a minute before sparking up.

We'd compare her flavour complexity to something like Wedding Cake or Gelato, but with a distinctly spicier edge. If you've grown Amsterdam Genetics strains like Milkshake Kush or White Choco, you'll recognise that same attention to terp-forward breeding. The 60/40 indica-sativa split means the structure leans indica — compact, bushy, with tight internodal spacing — but there's enough sativa influence to keep her from becoming a squat little shrub.

Growing Fatkid's Cake Seeds — What to Expect

Fatkid's Cake is genuinely straightforward to grow, and we don't say that lightly. She's forgiving of minor mistakes — a slightly off pH reading or an imperfect light schedule won't send her into a spiral. New growers can run her with confidence, and experienced growers will appreciate how little fuss she demands while still delivering proper results.

Here's what the numbers look like:

Indoors, she'll stay manageable — between 1 and 2 metres depending on how long you veg her. In a standard 1.2m x 1.2m tent, you can comfortably fit 4 plants and expect 400–500g/m² under decent lighting. Outdoors, she's a different beast entirely: given full sun and a proper growing season, individual plants can push up to 800g each, with harvest landing in October for Northern Hemisphere growers.

One honest note: that 29.9% THC figure is an average under optimal conditions. Your actual results will depend on your setup — lighting, nutrients, environment. If you're running a basic CFL setup in a cupboard, you'll still get potent bud, but don't expect to hit lab-grade numbers without dialling in your environment. A proper LED panel and good airflow make a real difference with this strain.

How to Grow Fatkid's Cake Seeds

1. Germinate your seeds using the paper towel method or directly in a starter plug. Fatkid's Cake feminised seeds have a strong germination rate — keep them warm (around 22–25°C) and moist but not waterlogged.
2. Transplant seedlings into their final pots once they've developed 2–3 sets of true leaves. A 10–15 litre pot works well for indoor grows; outdoor plants benefit from 25 litres or more.
3. Maintain an 18/6 light schedule during vegetative growth. She responds well to LST (low-stress training) — gently bending and tying down branches opens up the canopy and encourages more bud sites without stressing the plant.
4. Switch to 12/12 lighting to trigger flowering. You'll see pistils forming within the first week or two. From flip to harvest, count on 8–9 weeks.
5. Feed with a bloom-specific nutrient schedule once flowering begins. She's not a particularly heavy feeder, so start at 75% of the manufacturer's recommended dose and increase only if she looks hungry.
6. Flush with plain water for the final 10–14 days before harvest. This helps clear residual nutrients from the plant tissue and results in a cleaner, smoother smoke.
7. Harvest when 70–80% of trichomes have turned milky white with a few amber ones appearing. Dry in a dark room at 18–20°C with 55–60% humidity for 7–10 days, then cure in glass jars for at least 2 weeks.

Fatkid's Cake vs Other Amsterdam Genetics Strains

Amsterdam Genetics have a solid catalogue, so how does Fatkid's Cake stack up against her siblings? Here's a quick comparison with two other popular picks:

If you're chasing raw potency, Fatkid's Cake is the clear winner here — nearly 30% THC puts her in a different league. Milkshake Kush is the gentler option with a creamier flavour profile, while White Choco takes a bit longer and demands slightly more attention. For a first Amsterdam Genetics grow, we'd pick Fatkid's Cake over White Choco every time — similar yield, easier plant, stronger result.

Why Fatkid's Cake Deserves a Spot in Your Grow

We've been stocking Amsterdam Genetics seeds since they first started making waves in the Amsterdam coffee shop scene, and Fatkid's Cake is one of those strains that keeps getting reordered. The combination of Girl Scout Cookies and Cherry Pie genetics isn't just clever marketing — it produces a plant that genuinely delivers on flavour, potency, and yield without making you work for it.

The real appeal is the balance. At nearly 30% THC, you'd expect a finicky diva of a plant that needs constant attention. Instead, you get a resilient grower that handles temperature fluctuations, bounces back from minor overfeeding, and still packs on dense, frosty buds. She's the strain you recommend to a mate who's just set up their first tent — and the same one you'd run again yourself because the results are consistently good.

The one thing to watch for: those dense buds can hold moisture, especially in the final weeks of flowering. Good airflow is non-negotiable. A small oscillating fan pointed at canopy level and proper extraction will prevent any mould issues. This isn't a Fatkid's Cake-specific problem — any dense indica will do this — but it's worth mentioning because losing a cola to bud rot after 8 weeks of patience is properly gutting.

Frequently Asked Questions

Last updated: April 2026