Jet Fuel Mandarine XL Auto® by Sweet Seeds – Sativa-Dominant Autoflower with Diesel & Citrus Aroma

Jet Fuel Mandarine XL Auto® by Sweet Seeds is a powerful, sativa-dominant autoflower that delivers big yields, fast results, and an unforgettable aromatic punch—perfect for growers who want top-tier genetics without the wait.

Worried your autoflower won’t live up to the hype?

It’s frustrating when you invest time and care only to end up with weak plants, bland flavors, or underwhelming effects. You want a strain that actually delivers on its promises—something that stands out, not fades into the background.

What if your first harvest could already be legendary?

Most autoflowers compromise: speed over flavor, ease over potency. But Jet Fuel Mandarine XL Auto® breaks the mold. It’s not just fast—it’s exceptional. Imagine opening your grow tent and being hit with a wave of ripe mandarin and diesel fuel, seeing dense, resin-coated buds forming in under 10 weeks, and feeling that perfect balance of mental lift and body calm. This isn’t just another auto—it’s a collector-grade experience from day one.

Why Jet Fuel Mandarine XL Auto® delivers from seed to harvest

• 61.8% sativa dominance → delivers an uplifting, creative high ideal for daytime use
• THC 18–26% → powerful potency with minimal CBD (0.1%) for a clear, energizing effect
• Explosive citrus-Diesel aroma → intense mandarin and mango notes layered over a classic fuel base
• XL yields in 9 weeks → up to 500 g/m² indoors or 150 g/plant outdoors with strong branching
• Robust 50–135 cm (1.31–4.43 ft) structure → handles training well and supports heavy buds

Technical specifications

• Breeder / Brand: Sweet Seeds
• Type: Autoflowering, feminized
• Dominance: Sativa-dominant (61.8% sativa, 37.8% indica, 0.4% ruderalis)
• Genetics / Cross: Jet Fuel × (Cream Mandarine XL Auto® × Orange Apricot Glue XL Auto®)
• Life cycle: 9 weeks from germination to harvest
• Indoor yield: 400–500 g/m² (11.8–14.8 oz/ft²)
• Outdoor yield: 50–150 g/plant (1.76–5.29 oz/plant)
• Height: 50–135 cm (1.31–4.43 ft)
• Difficulty: Medium (forgiving for beginners, rewarding for experts)
• Structure and vigour: Robust, compact, strong branches, medium internodal spacing
• Ideal climate: Temperate to Mediterranean; tolerates mild fluctuations
• Resistance: Moderate resistance to mold and pests
• Training: Suitable for LST and SCROG; avoid topping or FIM
• Recommended pot: 18–27 L final pot (early transplant advised)
• Light cycle: 18–20 h daily throughout life 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 – use a carbon filter if discretion is needed
• THC: 18–26%
• CBD: 0.1%
• Aromatic profile: Limonene (citrus), myrcene (earthy), caryophyllene (spicy-diesel)
• Flavour: Ripe mandarin, sweet mango, diesel undertone
• Effect: Balanced – stimulating and relaxing, ideal for creative or social moments

Stages and monitoring of Jet Fuel Mandarine XL Auto®

Get the most out of your grow with this streamlined guide based on real grower results and breeder insights.

Quick overview

Fast 9-week autoflower from Sweet Seeds with sativa-driven energy, citrus-fuel aroma and XL yields. Ideal for indoor setups or sunny outdoor spots.

• Autoflowering, feminized, 6th generation
• Harvest: 9 weeks from seed
• Difficulty: Medium – beginner-friendly with expert rewards
• Ideal space: Indoor tent or sheltered outdoor area
• Climate: Temperate to warm, low humidity in flowering

Safe start

Kick off with strong germination and early root development.

• Germinate at 22–25 °C with high humidity
• Transplant when radicle reaches ~1 cm
• Use light, airy soil to prevent damping off
• Consider Clonex Rooting Hormone Gel for faster, stronger starts
• Keep lights at safe distance (LED: 40–50 cm)

Directed growth

Guide your plant for maximum structure and yield potential.

• Provide 18–20 h light daily
• Use 18–27 L pot early to avoid stress
• Apply Bio Rhizotonic to boost root mass and nutrient uptake
• Train gently with LST to open canopy
• Water when topsoil is dry; avoid overwatering

Efficient flowering

Optimize resin production and bud density.

• Reduce humidity to 40–50% to prevent mold
• Ensure strong airflow with oscillating fans
• Support heavy branches with soft ties
• Use Bud Factor X during peak flowering for denser buds
• Monitor trichomes: harvest when milky with slight amber

Harvest and refinement

Finish strong for premium quality and flavor.

• Flush 7–10 days before harvest
• Cut branches and hang dry at 18–22 °C, 50–60% RH
• Dry for 7–10 days, then cure in jars for 2–4 weeks
• Open jars daily during first week to release moisture
• Store in airtight container away from light

Frequently Asked Questions

How potent is Jet Fuel Mandarine XL Auto®?

With THC levels between 18% and 26%, it delivers a strong, clear-headed high that’s energizing without being overwhelming—perfect for creative or social use.

Is this strain good for beginners?

Yes. While it’s labeled medium difficulty, its autoflowering nature and resistance make it accessible. Just avoid aggressive pruning and maintain stable conditions.

Does it smell strong during grow?

Very. The citrus and diesel aroma is intense, especially in flowering. Use a carbon filter like those in our grow shop to stay discreet.

Can I grow it outdoors in a colder climate?

It prefers warmth, but its medium resilience allows it to handle mild temperature drops. For best results, grow in a sunny, sheltered spot and protect from rain.

Personal Experience of Pevgrow’s CEO (Alan)

I was skeptical at first—Jet Fuel crossed with two aromatic autos sounded too good to be true. But after growing it side-by-side with other XL autos, I was blown away. The smell hits you from two meters away: fresh mandarin peel dipped in diesel. I ran it in a 20 L pot under a 600W LED, 18/6, and got 472 g/m²—right in the sweet spot. No nutrient issues, no mold, just solid growth. The high? Perfect balance. I used it while writing, and it kept me focused without the jitters. My only tip: go easy on the nitrogen in flowering. This one loves PK, but it’ll stretch if you overfeed. If you’re looking for a fast, flavorful, high-THC auto that actually delivers, this is your strain.