Strawberry Banana Gelato XL Auto® by Sweet Seeds – Fruity Autoflowering Strain with High Resin & Fast 8-Week Harvest

Strawberry Banana Gelato XL Auto® by Sweet Seeds is a high-performing, 6th-generation autoflowering strain that delivers dense, THC-rich buds in just 8 weeks from germination, making it a top choice for fast, reliable harvests packed with sweet, fruity flavor.

Struggling with slow, low-yielding autoflowers?

Let’s be real: not all autoflowering strains live up to the hype. Some take forever, others barely produce, and a few just collapse under mild stress. You end up waiting weeks for a handful of airy buds that lack flavor and punch — a total waste of time, space, and nutrients.

What if your next grow could be faster, tastier, and way more rewarding?

Imagine harvesting in just 8 weeks from seed, with no light cycle changes, no stress, and no guesswork. Picture compact plants loaded with frosty, resin-drenched buds that smell like strawberry banana ice cream and hit with a smooth, balanced high. That’s not a dream — it’s what Strawberry Banana Gelato XL Auto® delivers, consistently.

Your shortcut to fast, flavorful, high-yielding autoflowers

Bred from a legendary Strawberry Banana clone and Sweet Gelato Auto®, this 6th-gen strain combines elite genetics with rock-solid autoflowering performance. It grows fast, stays manageable (60–125 cm), and produces up to 550 g/m² indoors or 180 g/plant outdoors — all in just 8 weeks. The aroma? Fruity, sweet, with notes of strawberry gum, OG Kush, and wood. The effect? Creative, uplifting, then gently relaxing — perfect for evening vibes without the couch-lock.

What makes this strain a game-changer for your grow?

Strawberry Banana Gelato XL Auto® doesn’t just grow fast — it grows smart. Whether you're in a small indoor tent or a sunny balcony, this strain adapts effortlessly, delivering top-tier quality without demanding advanced skills.

• Harvest in just 8 weeks from germination — no photoperiod switching needed
• Produces up to 550 g/m² indoors or 180 g/plant outdoors under optimal conditions
• Thrives in 18–20 hours of daily light, making it ideal for beginners and pros alike
• Compact size (0.60–1.25 m / 1.97–4.10 ft) fits discreetly in tight spaces
• Resilient structure handles minor nutrient fluctuations and environmental stress

Flavor, aroma & effect: a sensory upgrade

This isn’t just another sweet-smelling auto — it’s a full sensory experience. The terpene profile bursts with fruity and sweet notes, underlined by earthy OG Kush and a hint of arugula for complexity. When smoked, it delivers a smooth, creamy hit with layers of strawberry, banana, and candy-like sweetness.

• Aroma: Fruity, sweet, strawberry chewing gum, OG Kush, woody
• Flavor: Creamy banana, ripe strawberry, subtle diesel, earthy finish
• THC: 18–22% — strong but not overwhelming
• CBD: 0.1% — non-intoxicating, minimal presence
• Effect: Creative, stimulating, then relaxing — great for social moments or unwinding after work

Technical specifications

• Breeder / Brand: Sweet Seeds
• Type: Autoflowering
• Dominance: Hybrid (Indica 57.1%, Sativa 42.5%, Ruderalis 0.4%)
• Genetics: Strawberry Banana [Crockett’s Banana Kush x Bubblegum (strawberry phenotype)] × Sweet Gelato Auto® (SWS76)
• Autos: 8 weeks from germination to harvest
• Indoor Yield: 450–550 g/m² (13.2–16.2 oz/ft²)
• Outdoor Yield: 60–180 g/plant (2.12–6.35 oz/plant)
• Height: 60–125 cm (23.62–49.21 in)
• Difficulty: Low — ideal for beginners
• Structure and Vigour: Bushy, compact internodal spacing, strong lateral branching
• Resistance: High resistance to mold, pests, and environmental stress
• Training: Suitable for LST and SCROG; avoid topping or FIM due to autoflowering nature
• Recommended Pot: 18–27 L final pot for optimal root development
• Light: 18–20 h daily throughout the cycle
• Temperature: 22–26 °C (71.6–78.8 °F) in veg, 20–25 °C (68–77 °F) in flower
• 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: Medium — discreet enough for indoor grows without carbon filter
• Effect: Balanced cerebral and body high, suitable for evening use

How to grow Strawberry Banana Gelato XL Auto® for maximum results

Getting the most out of this strain is easier than you think. With the right setup and a few smart choices, you can push yields while keeping your grow low-stress and high-reward.

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

• Use a light, airy soil mix with good drainage
• Keep humidity high (60–70%) during the first week
• Apply Mykos Root Paks Mycorrhizae at transplant to boost root colonization and nutrient uptake
• Water lightly — avoid soggy soil
• Place under 18–20 h of light from day one

Stable seedling: Focus on root and leaf development during the first 10–14 days.

• Maintain pH between 6.0–6.5 in soil
• Start with mild nutrients (¼ strength)
• Use Insta Green to promote early vigor and deep green foliage
• Monitor for stretch — keep lights close but not burning
• Avoid any pruning or stress

Directed growth: This strain grows fast, so keep pace with its needs.

• Move to final 18–27 L pot early — no need for multiple transplants
• Use LST to open up the canopy and expose more bud sites
• Ensure strong airflow to prevent humidity buildup
• Feed progressively — increase nutrients as plant size grows
• Keep temperature stable to avoid heat stress

Efficient flowering: Buds start forming by week 3 and fatten fast.

• Reduce humidity to 40–50% to prevent mold
• Boost with Bud Booster Green Planet during mid-flower for denser, resin-rich colas
• Support heavy main buds with stakes if needed
• Stop nitrogen-heavy feeds by week 6
• Flush 7–10 days before harvest for a smoother smoke

Harvest and refinement: Timing is key for the best effect.

• Harvest when 70–80% of trichomes are milky, 20–30% amber for balanced high
• Cut branches and hang in a dark, 18–22 °C space with 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 a cool, dark place for long-term freshness

Frequently Asked Questions

How long does it take to harvest Strawberry Banana Gelato XL Auto®?

From seed to harvest, this strain takes just 8 weeks. There’s no need to change light cycles — it flowers automatically.

Is this strain good for beginners?

Absolutely. It’s low-maintenance, resistant to stress, and doesn’t require advanced techniques. Just keep the basics right and you’ll be rewarded.

Does it smell strong during grow?

It has a medium odor — noticeable but not overpowering. In discreet setups, a carbon filter isn’t always necessary, though it helps in shared spaces.

Can I grow it outdoors in colder climates?

Yes. Its Ruderalis heritage gives it good resilience to temperature swings. Just plant it after the last frost and ensure it gets plenty of sunlight.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve tested a lot of autoflowers, but Strawberry Banana Gelato XL Auto® stands out for how much it delivers in such a short time. I grew it in a 20 L pot under a 600W LED, and by week 8, I had dense, trichome-covered buds that smelled like dessert. The high is smooth — starts creative, then eases you into relaxation. What I love most? It’s forgiving. I made a few nutrient mistakes early on, but it bounced back without issue. If you want a strain that’s fast, flavorful, and foolproof, this is it. Pro tip: don’t top it — let it grow naturally, and use LST to control height. Pair it with Connoisseur Grow A+B Ph Perfect and you’ll see how clean, potent harvests are made.