Epsilon F1 Auto by Royal Queen Seeds – Fastest F1 Hybrid Auto · Blue Dream x Blueberry

Epsilon F1 Auto by Royal Queen Seeds is the fastest F1 hybrid autoflower on the market, delivering consistent, high-quality harvests in just 60 days with minimal effort and maximum discretion.

Worried your grow will take too long or smell too much?

Let’s be real: most fast strains either underdeliver on flavor, collapse under stress, or reek so loud they blow your cover. You want speed, sure — but not at the cost of quality, stealth, or peace of mind.

What happens if you settle for a 'quick' strain that’s actually unstable?

You end up with uneven plants, weak yields, and buds that taste like hay. Or worse — your neighbor knocks wondering what’s cooking. You waste time, money, and energy on something that should’ve been simple. And you’re right back where you started: frustrated, broke, and still waiting for that perfect harvest.

The solution? A truly stable, fast, and discreet F1 hybrid

Epsilon F1 Auto isn’t just quick — it’s engineered for consistency. Thanks to Royal Queen Seeds’ groundbreaking F1 hybrid technology, every plant grows nearly identical: compact, resilient, and almost odorless until harvest. With genetics from Blue Dream, Blueberry, Amnesia Lemon Haze, and Black Domina, it delivers complex flavors and a balanced high, all in a 30-day flowering cycle. This is speed you can trust — no guesswork, no stress.

Why Epsilon F1 Auto is perfect for your next stealth grow

Whether you're tight on space, short on time, or just want a no-fuss harvest, Epsilon F1 Auto hits the sweet spot. It’s ideal for beginners and experts alike who value reliability, speed, and discretion. With XXL yields and stable genetics, it’s not just another fast strain — it’s the future of autoflowering.

Key features and benefits

• Fastest F1 autoflower — harvest in just 60 days from germination, thanks to optimized genetics.
• Uniform growth — every plant looks and performs the same, making it perfect for small or stealth setups.
• Compact size — reaches 0.5–0.7 m (1.64–2.30 ft) indoors, ideal for tight spaces and low-profile grows.
• High THC levels — delivers a potent, balanced high that’s physically relaxing yet mentally uplifting.
• Discreet aroma — stays nearly odorless during grow, reducing the need for heavy carbon filtration.
• Complex flavor profile — enjoy notes of blueberry, citrus, herbs, and lavender for a rich, gourmet smoke.
• Resilient structure — handles temperature swings and minor nutrient imbalances like a pro.
• Easy to grow — forgiving for beginners, yet rewarding for experienced cultivators.

Common doubts — clear answers

Let’s clear up the noise and get real about what Epsilon F1 Auto can (and can’t) do.

• You think that fast means weak. In reality, Epsilon F1 packs high THC and dense, trichome-covered buds thanks to elite F1 stability.
• You think that autoflowers can’t be trained. In reality, light LST works great to boost yield without stressing the plant.
• You think that small plants mean small harvests. In reality, it produces up to 550 g/m² (1.94 oz/ft²) indoors and 350 g (12.35 oz) per plant outdoors.
• You think that F1 seeds are too expensive. In reality, the consistency and quality save you money long-term by reducing failed grows.

How to grow Epsilon F1 Auto for best results

Maximize your harvest with these simple, proven steps — no PhD required.

1. Start with a final pot of 18–27 L to avoid transplant stress — this autoflower hates being moved.
2. Use a light, airy soil mix or coco coir to prevent overwatering and boost root health.
3. Keep light cycles at 18/6 or 20/4 — no changes needed, since it’s an autoflower.
4. Apply light low-stress training (LST) early to open up bud sites and improve airflow.
5. Monitor trichomes: harvest when mostly cloudy with 5–10% amber for a balanced, long-lasting effect.
6. Flush nutrients 7–10 days before harvest to ensure a smooth, clean taste.
7. Dry slowly at 18–20 °C (64–68 °F) and 50–60% RH for 10–14 days, then cure for 2–4 weeks.

Technical specifications

• Breeder / Brand: Royal Queen Seeds
• Type: Autoflowering
• Dominance: Indica-dominant hybrid (60% Indica)
• Genetics: Blue Dream × Blueberry × Amnesia Lemon Haze × Black Domina
• Total cycle: 60 days (germination to harvest)
• Indoor yield: Up to 550 g/m² (1.94 oz/ft²)
• Outdoor yield: Up to 350 g/plant (12.35 oz/plant)
• Indoor height: 0.5–0.7 m (1.64–2.30 ft)
• Outdoor height: 0.6–0.8 m (1.97–2.62 ft)
• Difficulty: Low
• Structure: Compact, columnar, few side branches
• Climate: Temperate, Mediterranean
• Resistance: High resistance to mold, pests, and temperature fluctuations
• Training: Suitable for LST; avoid topping or aggressive pruning
• Smell in grow: Low — discreet, minimal odor until late flowering
• THC: High (15–25%)
• Terpenes: Myrcene, farnesene, limonene, ocimene
• Flavor: Blueberry, citrus, herbal, lavender, earthy
• Effect: Balanced — physically relaxing with a motivating, uplifting kick

Frequently Asked Questions

How fast does Epsilon F1 Auto grow?

From seed to harvest, Epsilon F1 Auto takes just 60 days. It’s the fastest in Royal Queen Seeds’ F1 lineup, perfect for quick turnarounds or multiple outdoor harvests per season.

Is Epsilon F1 Auto good for beginners?

Absolutely. With stable genetics, low odor, and high resilience, it’s one of the easiest high-performance autoflowers to grow — ideal for first-timers or stealth setups.

Does it smell during flowering?

Very little. Epsilon F1 Auto stays discreet throughout the grow, with minimal odor until the final weeks. A small carbon filter is usually enough for indoor grows.

Can I use LST or topping?

Light LST is recommended to improve light penetration and yield. Avoid topping or FIM — autoflowers don’t recover well from aggressive pruning.

What’s the best soil or substrate for Epsilon F1 Auto?

A well-draining mix with good aeration works best. Consider starting with Kit Top Grow Box Bio Plagron for a balanced, organic base that supports strong root development.

Personal Experience of Pevgrow’s CEO (Alan)

I’ll admit — I was skeptical about F1 hybrids at first. 'Stable autoflowers'? 'Uniform yields'? Sounded too good to be true. But after growing Epsilon F1 Auto myself, I’m a believer. Every plant came up identical — same height, same structure, same vigor. I ran three in a 60x60 tent with Aqua Vega in the early stage and HESI Phosphorus Plus during bloom. Harvested in 62 days, got sticky, dense buds with a flavor like blueberry pancakes. The high? Calming, but not couch-lock — perfect for unwinding without zoning out. If you want speed, quality, and zero drama, this is your strain.

Grow guide: Epsilon F1 Auto by Royal Queen Seeds

Quick overview: autoflowering · Royal Queen Seeds · 60-day cycle · low difficulty · ideal for small spaces and stealth grows.

Safe start: Germinate seeds in a moist paper towel or starter cube at 22–25 °C and high humidity.

• Transplant gently when the taproot is ~1 cm long.
• Use a final pot of 18–27 L to avoid root stress.
• Choose a light, well-aerated substrate like coco or quality soil.
• Keep pH between 6.0–6.5 (soil) or 5.8–6.2 (coco).
• For faster rooting, Root Riot Sponges reduce shock and speed up establishment.

Stable seedling: Maintain steady conditions to avoid early stress.

• Provide 18–20 hours of light daily with low-intensity LEDs.
• Water lightly — let the top layer dry between waterings.
• Avoid nutrients in the first 10–14 days.
• Ensure good airflow to prevent mold.
• Use Rhizotonic XP to strengthen roots and boost early growth.

Directed growth: Support steady development without overfeeding.

• Switch to a growth nutrient like Aqua Vega after true leaves appear.
• Apply light LST to spread the canopy and improve light access.
• Keep temperatures at 22–26 °C and RH at 50–60%.
• Water when the top 2–3 cm of soil feels dry.
• Avoid topping — it can stunt autoflowers permanently.

Efficient flowering: Maximize bud density and resin production.

• Continue 18–20 h light; no photoperiod change needed.
• Introduce bloom nutrients like HESI Phosphorus Plus at week 3 of flower.
• Lower RH to 40–50% to prevent mold in dense buds.
• Support the main cola if needed with soft ties.
• Flush with plain water 7–10 days before harvest.

Harvest and refinement: Time it right for the perfect effect.

• Harvest when trichomes are mostly cloudy with 5–10% amber.
• Cut branches and trim sugar leaves carefully.
• Dry at 18–20 °C and 50–60% RH for 10–14 days.
• Cure in glass jars for 2–4 weeks, burping daily.
• Enjoy a smooth, flavorful smoke with lasting relaxation.