Sweet Mandarine Zkittlez XL Auto® – Sweet Seeds – High-Yield, Citrus-Driven Autoflower with 19–24% THC

Sweet Mandarine Zkittlez XL Auto® from Sweet Seeds is a high-performance autoflower that delivers potent, aromatic harvests in just 8 weeks, with indoor yields up to 650 g/m² and THC levels reaching 24%.

Are you stuck with bland, slow-growing autoflowers that lack punch?

Too many autoflowering strains promise big results but deliver weak flavors, inconsistent potency, or mold-prone buds. You end up wasting time, space, and nutrients on plants that don’t live up to the hype—leaving you frustrated and uninspired.

What if your next grow could actually excite you from seed to smoke? What if you could skip the stress and still harvest dense, resin-coated buds bursting with citrus and diesel?

Sweet Mandarine Zkittlez XL Auto® changes the game. This 5th-generation autoflower isn’t just fast—it’s flavorful, frosty, and built for real results. No more compromises. Just a vibrant, creative high and a harvest that smells like a fresh orange grove on fire.

Before growing Sweet Mandarine Zkittlez XL Auto®

Setting up for success starts with the right environment and mindset. This strain thrives when you keep things simple and let its genetics shine. No need for complex routines—just solid basics and a little attention to detail.

• Start with a final pot of 18–27 L (0.63–0.95 ft³) to avoid transplant stress
• Use well-aerated soil or coco to support strong root development
• Ensure your grow space maintains 22–26 °C and 50–60% RH during veg
• Stick to an 18/6 light cycle from seed to harvest
• Go easy on nutrients—this strain prefers a light feeding schedule

During the grow: watch it thrive

From day one, Sweet Mandarine Zkittlez XL Auto® shows off its vigor. It grows tall and bushy, with intense green foliage and early pistil development. Around week 3, you’ll notice the first hints of its signature citrus-diesel aroma filling the room.

As it enters flowering, the plant maintains steady growth without excessive stretch. Buds begin to pack on resin early, turning frosty by mid-flower. Keep airflow strong to protect those dense colas, and consider light LST to open up the canopy.

This strain doesn’t like heavy feeding, so monitor for signs of nutrient burn. A simple, balanced fertilizer routine works best. For a stronger start, HESI Root Complex boosts early root growth and resilience.

After harvest: flavor, effect & maintenance

Once cured, the buds explode with flavor—think fresh orange peel, mango, and a spicy diesel kick. The high is energizing and creative, perfect for daytime inspiration or social vibes. With THC between 19–24%, it’s potent but balanced, fading into a relaxed, happy calm.

Yields are impressive: up to 650 g/m² indoors or 200 g (7.05 oz) per plant outdoors. The minimal leaf-to-calyx ratio means less trimming, more smoking. After harvest, clean your space and sterilize tools—Oidium Killer Agrobacteria helps prevent mold carryover.

Short- and long-term advantages and benefits

• Harvest in just 8 weeks from germination—ideal for quick turnover
• Up to 24% THC delivers a powerful, uplifting cerebral effect
• Citrus-diesel aroma fills your space without needing a carbon filter
• Frosty, resin-rich buds mean more for extracts or edibles
• Minimal leaf waste speeds up trimming and boosts yield efficiency
• Consistent performance across phenotypes builds grower confidence
• Perfect for beginners and experts wanting reliable, flavorful results
• Great for creative sessions, chill hangs, or mood-lifting moments

Technical specifications

• Breeder / Brand: Sweet Seeds
• Type: Autoflowering
• Dominance: Hybrid (Indica 57.5% / Sativa 41.7%)
• Genetics: Z (elite clone) × Sweet Mimosa XL Auto® (SWS94)
• Autos: 8 weeks from germination to harvest
• Indoor Yield: 450–650 g/m² (13.23–19.05 oz/ft²)
• Outdoor Yield: 50–200 g/plant (1.76–7.05 oz/plant)
• Height: 55–135 cm (21.65–53.15 in)
• Difficulty: Low
• Structure and Vigour: Vigorous, tall, with strong branching and moderate stretch
• Ideal Climate: Temperate to Mediterranean; tolerates heat but prefers stable conditions
• Resistance: Moderate resistance to mold; avoid high humidity
• Training: Suitable for LST and light topping; avoid aggressive pruning
• Recommended Pot: 18–27 L final pot (early transplant recommended)
• Light: 18/6 throughout the entire cycle
• Temperature: 22–26 °C (veg), 20–25 °C (flowering)
• Humidity: 60–70% (seedling), 50–60% (veg), 40–50% (flowering)
• pH: 6.0–6.5 (soil), 5.8–6.2 (coco/hydro)
• Smell in Grow: High – citrus, diesel, orange, pine
• THC: 19–24%
• CBD: 0.5%
• Aromatic Profile: Limonene, myrcene, pinene
• Flavour: Citrus, orange, mandarin, diesel, mango, pine
• Effect: Stimulating, creative, happy – ideal for daytime or social use

How to grow Sweet Mandarine Zkittlez XL Auto®

Get the most from this high-yield autoflower with a simple, effective grow plan tailored to its genetics.

Quick overview

Autoflower from Sweet Seeds, ~8-week cycle, low difficulty, ideal for indoor or warm outdoor setups.

• Genetics: Z clone × Sweet Mimosa XL Auto®
• Cycle: 8 weeks from seed to harvest
• Space: Fits 9 plants/m² in 11L pots
• Climate: Prefers 22–26 °C and stable RH

Safe start

Launch strong with a solid germination and early root boost.

• Soak seeds 12–24h in water at 22–25 °C
• Plant directly in final pot to avoid stress
• Use HESI Root Complex to accelerate root development
• Keep RH at 60–70% until first true leaves appear
• Water lightly—let topsoil dry between irrigations

Directed growth

Guide structure early for maximum light exposure.

• Apply light LST to spread the canopy
• Use airy soil or coco with perlite for drainage
• Feed mild A+B from week 2 onward
• Keep EC progressive—start low, increase slowly
• Ensure constant airflow to strengthen stems

Flowering by stages

Support resin production and protect dense buds.

• Early: Maintain 50–60% RH; begin bloom nutrients
• Mid: Reduce RH to 40–50%; add Top Veg for greener leaves and better photosynthesis
• Late: Stop fertilizers by week 7; flush with plain water
• Watch for mold—this strain is dense and aromatic
• Harvest when trichomes turn milky to amber

Harvest, drying and curing

Lock in flavor and potency with proper post-harvest care.

• Flush 7–10 days before harvest to improve taste
• Dry buds at 18–22 °C and 50–60% RH for 10–14 days
• Cure in jars for 2–4 weeks, burping daily
• Store in airtight containers away from light
• Use cured nugs for smoother, richer smoke

Frequently Asked Questions

How long does Sweet Mandarine Zkittlez XL Auto® take to grow?

From germination to harvest, it takes approximately 8 weeks. There’s no need to change the light cycle—just keep it at 18/6 the whole time.

Is this strain mold-resistant?

It has moderate resistance. While it handles heat well, high humidity can lead to mold, especially in dense buds. Keep airflow strong and RH below 50% in flowering.

What’s the best way to maximize yield?

Use a final pot of at least 18–27 L, apply light LST early, and avoid overfeeding. Let the plant’s genetics do the work—less is more with this strain.

Does it smell strong during flowering?

Yes, it has a high smell intensity—citrus, diesel, and orange dominate. If discretion is key, consider using a carbon filter, especially in enclosed spaces.

Can I grow it outdoors in a colder climate?

It performs best in warm, stable climates. In colder or wetter regions, consider growing in a greenhouse to protect it from moisture and temperature swings.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve tested dozens of autoflowers, but Sweet Mandarine Zkittlez XL Auto® stands out. I grew it in a 20L pot under a 600W LED with an 18/6 cycle. Germination was 100%—roots popped in 48 hours.

By week 3, the citrus-diesel smell hit hard. I used light LST to open the canopy and stuck to a minimal nutrient schedule. I added HESI Root Complex early and Top Veg during stretch—big difference in vigor.

Flowering was smooth, but I had to cut one cola due to mold—lesson learned: don’t let RH creep up. Harvest was around 75g from a single plant. After a 3-week cure, the flavor was unreal: fresh orange, spicy diesel, and a creamy finish.

The high? Pure creative fuel. I’d smoke a joint while sketching grow ideas—laughing, inspired, totally present. If you want a fast, flavorful, and fun autoflower, this is it. Just keep it dry and feed it light.