Thunder Banana Auto by Seed Stockers – High-Yielding Sativa-Dominant Autoflower with Banana Candy Flavor

Thunder Banana Auto by Seed Stockers is a high-performance sativa-dominant autoflower that delivers massive yields, a sweet banana-candy terpene profile, and a powerful 20–26% THC punch—all in just 11 weeks from seed to harvest.

Struggling with weak autoflowers that lack flavor or kick?

You’ve tried autos before: small buds, bland taste, barely-there effects. You end up vaping more just to feel something, wasting herb and time. It’s frustrating when you want a reliable daytime companion but keep getting let down by underperforming genetics.

What if your autoflower actually impressed you?

Imagine a plant that grows fast, asks for almost nothing, and rewards you with frosty, dense buds that smell like banana runts and hit with a clean, euphoric rush. No more compromises. No more guessing games. Just consistent, high-grade results—without being a grow guru.

Thunder Banana Auto delivers exactly that

Bred from Alaskan Thunder Fuck and Amherst Banana, this autoflower packs serious genetics into a beginner-friendly package. It finishes in 11 weeks, produces huge yields of trichome-coated flowers, and floods your senses with sweet, spicy candy notes. With up to 26% THC, it’s not shy—expect a fast-acting, uplifting high that melts stress and sparks creativity, perfect for social moments or solo exploration.

Technical specifications

• Brand: Seed Stockers
• Type: Autoflowering
• Genetics: Alaskan Thunder Fuck × Amherst Banana (Sour Diesel x Banana OG)
• Dominance: Sativa-dominant
• Life cycle: 11 weeks from germination to harvest
• THC: 20–26%
• CBD: Low
• Yield (Indoor): High (500–600 g/m² / 1.76–2.12 oz/ft²)
• Yield (Outdoor): Very high (+1000 g/plant / +35.27 oz/plant)
• Height (Indoor): 80–110 cm (2.62–3.61 ft)
• Height (Outdoor): 100–130 cm (3.28–4.27 ft)
• Difficulty: Easy
• Flavor: Sweet, candy, herbal, spicy
• Effect: Uplifting, euphoric, relaxing, creative
• Terpenes: Ocimene, Caryophyllene

How to grow Thunder Banana Auto like a pro

Thunder Banana Auto thrives with minimal input, making it ideal for beginners and stealth grows. Here’s how to maximize your harvest:

Quick overview

Autoflowering · Seed Stockers · 11-week cycle · Easy · Ideal for indoor tents or outdoor patios.

Safe start

Germinate seeds in a moist, dark environment at 22–25 °C and high humidity.

• Use starter cubes or direct soil for best results
• Keep light gentle (20W LED) for first 3–5 days
• Transplant once the radicle is ~1 cm long
• For a stronger start, Bio Rhizotonic boosts root development

Directed growth

Maintain 18–20 hours of light daily; avoid topping or aggressive training.

• Use a final pot of 18–27 L from the beginning
• Choose well-aerated soil or coco mix
• Water when top 2–3 cm of soil is dry
• Micro Kit Ata Terra ensures balanced nutrition in soil

Efficient flowering

Flowers automatically—no light change needed. Focus on airflow and nutrient balance.

• Lower humidity to 40–50% to prevent mold
• Support heavy colas with soft ties if needed
• Switch to bloom-focused nutrients after week 4
• Monster Bloom enhances resin and bud density

Harvest and refinement

Harvest when most trichomes turn milky-white for a cerebral high.

• Flush with plain water 7–10 days before harvest
• Dry slowly at 18–22 °C and 50–60% RH
• Cure in jars for 2–4 weeks, burping daily
• Expect dense, frosty buds with a sweet-spicy aroma

Advantages and benefits you’ll notice from day one

• Ready in just 11 weeks—no waiting around
• Huge yields, even in small spaces
• Banana-candy flavor that actually tastes like dessert
• Uplifting, creative high perfect for daytime
• Minimal maintenance—ideal for beginners
• Thrives both indoors and outdoors
• Resilient to common stressors and pests
• Great for making concentrates or vapes

Frequently Asked Questions

Is Thunder Banana Auto good for beginners?

Absolutely. It’s forgiving, fast, and doesn’t require special techniques. Just water, light, and patience.

How much yield can I expect outdoors?

Under optimal conditions, you can harvest over 1000 g (35.27 oz) per plant. Sunny, warm climates bring out its full potential.

Does it smell strong during flowering?

Yes, it has a noticeable sweet-spicy aroma. If discretion is key, use a carbon filter like those in our Seedfinder collection.

Can I top or train this plant?

Not recommended. As an autoflower, it has a fixed timeline. Stick to gentle LST (low-stress training) if needed, but avoid cutting.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Thunder Banana Auto in my 1.20 m² (12.92 ft²) tent under a 600W LED. Planted three seeds, all germinated. I used 20L pots with a soil-coco mix and kept the light cycle at 20/4. By week 6, the stretch was real—up to 110 cm (3.61 ft)—but the colas started stacking fast. I added Monster Bloom from week 5 and saw a clear boost in density. No pests, no mold, just steady growth. Harvested at week 11: sticky, frosty buds with a banana-clove scent that filled the room. The high? Instant euphoria, then deep relaxation—perfect for unwinding after a long day. I’d grow this again in a heartbeat. For extra flavor, pair it with a clean vaporizer or try it in a joint with a pinch of BioTabs for smoother smoke.