Zkittlez Fast

Zkittlez Fast Cannabis Seeds by Advanced Seeds

Zkittlez Fast is a fast-flowering feminised cannabis seed from Advanced Seeds that delivers the famous candy-sweet Zkittlez genetics in a significantly shorter bloom cycle. Crossing the original Zkittlez with a high-yielding autoflower parent, this indica-dominant hybrid finishes flowering in just 45–55 days — shaving weeks off the typical photoperiod schedule while still producing dense, resinous buds with up to 23% THC and yields of 500–550g/m² indoors.

Why Grow Zkittlez Fast Seeds

The original Zkittlez swept through cannabis cups across the United States on the back of its outrageously fruity terpene profile and well-balanced effects. The problem? Classic Zkittlez photoperiod cuts can take 9–10 weeks to flower, and some phenotypes stretch like mad outdoors. Advanced Seeds solved both issues by crossing Zkittlez with a productive autoflower, then stabilising the offspring as a fast-flowering feminised line. You still get the full Zkittlez flavour — sugary-sweet tropical fruit with notes of banana, grape, cherry, melon, apple, and orange — but the flowering window drops to roughly 50 days on average.

That shorter bloom isn't just a convenience. It's a genuine advantage for outdoor growers in northern Europe who need to chop before autumn rains invite mould. And indoors, shaving two weeks off every cycle means an extra run per year from the same tent. With yields hitting 500–550g/m² under lights, that extra cycle adds up fast.

One honest note: fast-flowering genetics can sometimes produce slightly less complex terpene profiles than their full-term parents. We haven't found that to be the case with this particular cross — the candy-shop aroma is genuinely there — but if you're chasing the absolute loudest Zkittlez expression and time isn't a factor, a standard photoperiod Zkittlez cut might edge it out. For everyone else, the speed-to-quality ratio here is hard to beat.

Zkittlez Fast Grow Specifications

Aroma, Flavour, and Effects of Zkittlez Fast

Open a jar of dried Zkittlez Fast buds and the first thing that hits you is a wave of tropical sweetness — imagine tearing open a bag of fruit sweets on a warm day. The terpene profile leans heavily into sugary tropical fruit: banana and grape dominate, with cherry, melon, apple, and orange filling out the background. It's one of those strains where the smell alone tells you something special is happening.

With THC levels reaching up to 23%, the effects arrive quickly. Expect an alert, focused, and uplifting cerebral onset that settles into notable physical relaxation as the indica side takes over. It's not a couch-lock strain at moderate doses — more of a happy, functional calm that works well in the evening without completely writing off the rest of your night. Push the dose and the body effects become considerably heavier, which is worth knowing if you're growing for personal use and tend to roll generously.

How to Grow Zkittlez Fast Seeds

1. Germinate your Zkittlez Fast seeds using the paper towel method or directly in a small pot of moist, airy seedling soil. Maintain a temperature of 22–25°C and expect taproots within 24–72 hours.
2. Transplant seedlings into their final containers once the first true leaves appear. For indoor grows, 11–15 litre pots work well given the strain's compact 100cm stature. Outdoors, larger containers or open soil will let plants stretch closer to their 250cm potential.
3. Veg under 18/6 lighting. Zkittlez Fast develops a strong central stem with several side branches naturally, so heavy training isn't necessary. Advanced Seeds specifically recommend leaving this strain largely to its own devices — minimal stress equals maximum yield.
4. Flip to 12/12 when your canopy fills roughly 60–70% of your available space. The 45–55 day flowering window is short, so plants won't stretch as dramatically as longer-flowering photoperiods.
5. During bloom, maintain relative humidity below 50% and support heavy branches as buds pack on weight. The thick, resinous flowers can get surprisingly dense in the final two weeks.
6. Harvest when trichomes show mostly milky heads with a few turning amber. Dry slowly at 18–20°C and 55–60% humidity for 10–14 days, then cure in sealed jars for at least two weeks to let that candy-sweet terpene profile fully develop.

Zkittlez Fast vs Standard Zkittlez — What's the Difference

The fast-flowering version trades a small amount of maximum height for a significantly shorter bloom window — roughly two weeks less. Yields are comparable or better, and the THC ceiling of 23% sits comfortably within the range of standard Zkittlez cuts. The real win is the reduced risk of late-season mould for outdoor growers and the extra cycle per year for indoor setups.