Zkittlez Auto 420 Fast Buds – Fast-Growing, High-THC Autoflower with Candy-Like Terps

Zkittlez Auto 420 Fast Buds is a powerhouse autoflower that packs a flavorful punch and serious potency in a compact, low-maintenance frame—ideal for stealth grows and high-yield harvests without the hassle.

Still juggling a dozen different strains, nutrients, and training techniques just to get average buds? What if you could cut the clutter and still pull in sticky, terpene-rich colas that smell like a candy store exploded? Too many growers overcomplicate their setup, only to end up with stressed plants, wasted time, and inconsistent results. The truth is, most of us don’t need ten different phenotypes—we need one that just works, every time. That’s where Zkittlez Auto steps in.

Meet your new grow staple: Zkittlez Auto by FastBuds. This Indica-dominant autoflower delivers up to 23% THC, a frosty trichome blanket, and a flavor profile that blends zesty citrus, fresh berries, and tropical fruit into one unforgettable experience. With a stable genetic backbone and a compact structure, it’s built to thrive in tight spaces, from small indoor tents to discreet outdoor balconies. No more managing multiple strains or guessing when to switch lights—this one grows strong on 18–20 hours of light from seed to harvest in just 9–10 weeks.

Less Clutter, More Flavor and Power

Zkittlez Auto isn’t just another strain—it’s a full upgrade to your grow game. Instead of rotating multiple plants or chasing unstable phenotypes, this single strain delivers consistent, high-THC harvests with minimal input. Its compact size and resilience mean you can ditch the complex training rigs and still get dense, resinous buds. Whether you’re growing solo or running a perpetual setup, this plant holds its own without demanding constant attention.

• Replaces multiple experimental strains with one reliable, high-yielding autoflower
• Eliminates the need for aggressive pruning or topping—responds perfectly to LST and SCROG
• Reduces grow space needs with a stable height of 0.80–1.10 m (2.62–3.61 ft)
• Delivers candy-like terps and up to 23% THC without finicky feeding schedules

What You Can Simplify Once You Have It

Switching to Zkittlez Auto means streamlining your entire process—from germination to curing. You’ll spend less time troubleshooting and more time enjoying the results.

• No more juggling photoperiods—grow on a simple 18–20 h light cycle from start to finish
• Ditch the high-maintenance soil mixes—thrives in All Mix Peat Free or coco
• Stop overthinking nutrients—responds well to balanced feeding like Sensi Grow A+B Coco
• Forget about mold panic—its tight structure and resistance make it ideal for humid climates
• Reduce harvest stress—ready in 9–10 weeks with no extended veg needed
• Eliminate training anxiety—grows strong with just LST, no topping required
• Minimize odor concerns—moderate smell, easy to manage with basic carbon filters

How to Build a Minimalist Grow Setup Around Zkittlez Auto

1. Take stock of your current seeds and keep only the most reliable performers
2. Choose Zkittlez Auto as your core autoflower for consistent, high-THC harvests
3. Pair it with a simple 18–20 h LED setup and a 20 L final pot
4. Use a proven soil like All Mix Peat Free to reduce nutrient complexity
5. Apply light LST early to maximize light exposure without stress
6. Store or retire less productive strains and focus on quality over quantity
7. Keep your harvest, drying, and curing process simple and repeatable

Advantages of a Streamlined Grow Kit

• Fewer decisions, more consistent results
• Less time spent on maintenance and troubleshooting
• More mental space to enjoy the growing process
• Higher quality buds with intense flavor and potency
• Reduced risk of pests and mold from overcrowding
• Perfect for beginners and experienced growers alike
• Discreet, compact, and ideal for urban environments

Technical specifications

• Breeder / Brand: FastBuds
• Type: Autoflowering
• Dominance: Indica-dominant hybrid
• Genetics: Gorilla Glue × Zkittlez
• Total cycle: 9–10 weeks from seed to harvest
• Indoor yield: 450–500 g/m² (1.6–1.8 oz/ft²)
• Outdoor yield: 70–150 g/plant (2.5–5.3 oz/plant)
• Indoor height: 0.80–1.10 m (2.62–3.61 ft)
• Outdoor height: 1.00–1.20 m (3.28–3.94 ft)
• Difficulty: Low
• Structure: Compact, dense branching, moderate stretch
• Climate: Thrives in temperate to Mediterranean climates; tolerant of mild humidity
• Resistance: High resistance to mold, pests, and stress
• Training: Suitable for LST, SCROG; avoid topping
• Recommended pot: 18–27 L final pot (early transplant)
• Light cycle: 18–20 h throughout entire life
• Smell in grow: Medium to high (citrus, candy, tropical)
• THC: Up to 23%
• CBD: Approx. 1%
• Aromatic profile: Limonene, myrcene, caryophyllene
• Flavour: Citrus, berries, tropical fruit, candy
• Effect: Balanced cerebral lift followed by deep relaxation—perfect for evening use

How to Grow Zkittlez Auto for Best Results

Quick overview: FastBuds’ Zkittlez Auto is a low-difficulty, high-reward autoflower ideal for small spaces and beginner growers. Ready in 9–10 weeks with minimal intervention.

Safe start: Germinate in a moist, dark environment at 22–25 °C. Transplant once the taproot is ~1 cm long.

• Use a light, airy starter mix to prevent damping off
• Keep humidity at 60–70% during germination
• Place under low-intensity light (CFL or T5) for first 3–5 days
• For faster rooting, try Mygal at transplant

Stable seedling: Focus on root development and steady growth.

• Water lightly when topsoil feels dry
• Maintain 22–26 °C and 50–60% RH
• Begin mild nutrient feeding after first true leaves appear
• Apply Bio Bloom early to support root and leaf health

Directed growth: Maximize structure and light exposure.

• Move to final 20 L pot early to avoid root stress
• Use LST to spread canopy and improve airflow
• Feed with balanced nutrients like Sensi Grow A+B Coco
• Keep pH at 6.0–6.5 (soil) or 5.8–6.2 (coco)

Efficient flowering: Support bud development and resin production.

• Reduce RH to 40–50% to prevent mold
• Boost with PK-rich additives like Advanced PK at peak bloom
• Ensure strong airflow to protect dense colas
• Flush 7–10 days before harvest for cleaner taste

Harvest and refinement: Time it right for your preferred effect.

• Harvest when trichomes are mostly milky with some amber
• Dry at 18–22 °C and 50–60% RH for 7–10 days
• Cure in glass jars for 2–4 weeks, burping daily
• For denser buds, use Maria Green Bloom in late flowering

Frequently Asked Questions

Is Zkittlez Auto really strong enough for experienced growers?

Absolutely. With up to 23% THC and a complex terpene profile, it delivers a powerful, balanced high that satisfies even seasoned users. It’s not just beginner-friendly—it’s universally impressive.

Can I grow it with other strains in a mixed setup?

Yes. Its 18–20 h light cycle makes it perfect for perpetual grows. Pair it with other autoflowers or keep it separate from photoperiods on 12/12.

Does it need a lot of nutrients?

No. It thrives on moderate feeding. Overfeeding can cause nutrient burn, so start low and increase gradually. Organic soils like All Mix Peat Free work great.

How do I control the smell during flowering?

Use a small carbon filter if growing indoors. Outdoors, its moderate odor blends well in urban or garden settings. LST helps reduce hotspots and improve airflow.

Can I train it without risking yield?

LST is highly recommended. Avoid topping or FIM, as autos have a fixed timeline. Gentle bending and tying down branches will maximize yield safely.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve tested dozens of autoflowers over the years, but Zkittlez Auto stands out as one of the most reliable performers I’ve grown. I ran three plants in 20 L pots under a 300W LED, using All Mix Peat Free and a simple feed schedule. I started with Mygal at transplant, which gave them a solid root boost. I used LST from week 3, gently spreading the canopy to maximize light exposure. No topping, no stress—just steady growth.

By week 7, the smell was unreal—citrus and candy filling the room. I added Advanced PK at peak bloom and flushed for 10 days. Dried slowly and cured for three weeks. The result? Frosty, dense colas with a smooth, flavorful smoke and a long-lasting, relaxing high. I’ve since made it a staple in my rotation—simple, potent, and consistent. If you’re tired of unpredictable phenos and weak yields, this one’s a game-changer.