Original Auto White Widow by Fast Buds – High-Yielding Autoflowering Cannabis Seeds

Original Auto White Widow by Fast Buds is a high-yielding, fast-finishing autoflowering cannabis seed that delivers legendary resin production and a clear-headed, uplifting high in just 9 weeks.

Are you tired of waiting months for your next harvest?

Most photoperiod strains keep you on edge for 12 to 16 weeks before you can even think about trimming. That’s a long time to wait when you just want quality bud without the hassle.

What if your plants kept failing due to cold snaps or humidity spikes?

Many autos struggle in less-than-ideal conditions, leaving you with weak yields or moldy flowers. If you're growing in a garage, balcony, or unpredictable climate, instability can ruin your entire run — especially if you're new to this.

Meet your new go-to strain: White Widow Auto

This Fast Buds classic combines the legendary genetics of the original White Widow with a robust autoflowering backbone. It finishes in just 9 weeks from seed to harvest, produces up to 500 g/m² (1.6 oz/ft²), and thrives in both hot and cold environments. With dense, trichome-loaded buds and a balanced high, it’s the ultimate set-and-forget strain for reliable results.

Massive yields in record time

• Harvest up to 500 g/m² (1.6 oz/ft²) indoors — one of the highest-yielding autos available
• Outdoor plants produce 2–6 oz/plant (56–170 g/plant), even in cooler climates
• Ready in just 9 weeks — no vegetative phase needed
• Thrives under 18–20 hours of light, perfect for SOG or small spaces

Unbeatable resilience for any climate

• Stable genetics handle temperature swings from 15–30 °C (59–86 °F)
• High resistance to mold and pests — ideal for humid or rainy regions
• Compact size (0.70–1.10 m / 2.30–3.61 ft) fits discreetly in tight spaces
• Performs well in soil, coco, or hydro setups with minimal maintenance

Classic flavor and balanced effects

• Earthy, musky, and spicy taste with sweet dried fruit undertones — a true throwback
• THC levels around 20%, delivering a clear-minded, energizing buzz
• Gradually relaxes into a calm, social high — perfect for daytime or evening
• Great for hash and extract lovers — trichomes cover every surface

Technical specifications

• Breeder / Brand: FastBuds
• Type: Autoflowering
• Dominance: Indica 70% / Sativa 30%
• Genetics: White Widow × FB Auto #1
• Flowering time: 9 weeks from seed
• Indoor yield: 400–500 g/m² (1.3–1.6 oz/ft²)
• Outdoor yield: 2–6 oz/plant (56–170 g/plant)
• Height: 70–110 cm (28–43 in)
• THC: ~20%
• CBD:
• Difficulty: Low — ideal for beginners
• Training: Responds well to LST and SCROG, but avoid topping
• Recommended pot: 18–27 L for optimal root development

How to grow White Widow Auto seeds successfully

Get the most out of your Fast Buds genetics with this expert grow guide.

Quick overview: Autoflowering · FastBuds · 9-week cycle · low difficulty · ideal for indoor, outdoor, or greenhouse.

Safe start: Germinate seeds in a moist paper towel at 22–25 °C. Transplant when the taproot reaches ~1 cm. For a stronger start, RootStimulator HY-PRO boosts early root development and reduces shock.

Stable seedling: Keep humidity at 60–70% and provide gentle light. Use a well-aerated soil mix. Water lightly and let the top layer dry between irrigations.

Directed growth: Maintain 18–20 hours of light daily. Train gently with LST to open up the canopy. Switch to a bloom-focused fertilizer like B´CUZZ SOIL NUTRITION A & B once pre-flowering begins.

Efficient flowering: Lower humidity to 40–50% to prevent mold. Support heavy colas with stakes if needed. Avoid aggressive pruning — autos don’t recover well.

Harvest and refinement: Harvest when trichomes turn milky to amber for a balanced effect. Flush 7–10 days before harvest. Dry at 18–22 °C and 50–60% RH, then cure for 2–4 weeks to enhance flavor.

Frequently Asked Questions

Is White Widow Auto good for beginners?

Yes. It’s one of the easiest autoflowering strains to grow, with high resistance to stress, pests, and mold. Just keep the basics right — light, water, and nutrients — and you’ll be rewarded.

Can I grow this outdoors in a cold climate?

Absolutely. This strain handles cooler temperatures better than most, making it perfect for northern regions or late-season grows.

Does it need a lot of nutrients?

No. Autoflowers prefer a light feeding schedule. Start low and increase gradually. Overfeeding is a common mistake — less is more.

Can I use LST or SCROG with this strain?

Yes, LST works great to expose more bud sites. SCROG is also effective, but avoid topping or FIM — autos have a fixed timeline and won’t recover from stress.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown dozens of autos, but White Widow Auto from Fast Buds stands out. I planted three in 20L pots under a 600W LED, no LST, just pure genetics doing their thing. In 9 weeks, I had three plants dripping in resin, each hitting over 450 g/m². The high was crisp and motivating — perfect for weekend projects. I’ve recommended this to friends who want a no-fail strain, and every single one came back blown away. It’s not just nostalgia — it’s performance.