Milky Way F1 Auto – Royal Queen Seeds F1 Hybrid | High THC, Fast 70-Day Harvest & XXL Yields

Milky Way F1 Auto by Royal Queen Seeds is a groundbreaking F1 hybrid that combines explosive potency, aromatic intensity, and XXL yields in a compact, fast-growing package. With hybrid vigour locked in from elite inbred lines, it delivers uniform, resilient plants that go from seed to harvest in just 70 days — perfect for growers who want top-tier results without the wait.

Are you still stuck with inconsistent autos that underperform and stretch unpredictably? You're not alone. Many growers waste time and space on unstable genetics that promise big but deliver average buds and weak effects. The result? Disappointment, wasted nutrients, and a cluttered grow room with mixed phenotypes.

It doesn’t have to be this way. Milky Way F1 Auto is engineered for precision. Born from true inbred lines — one from Blue Mammoth × Blue Dream, the other from Sin Tra Bajo Auto — this F1 hybrid offers unmatched uniformity, explosive growth, and a terpene profile so loud it fills the room. Whether you're growing indoors, outdoors, or in a stealth setup, this strain adapts flawlessly, giving you maximum return with minimal effort.

Indoor Powerhouse: Big Buds in Tight Spaces

Got a small tent or limited headspace? Milky Way F1 Auto thrives in confined environments, reaching just 0.70–0.85 m (2.30–2.79 ft) indoors. Its compact, bushy structure and short flowering cycle make it ideal for SOG or screen setups. Expect dense, resin-coated colas that stretch only slightly in pre-flower, staying manageable under 600W HPS or LED.

With high light demand and a preference for well-aerated soil or coco, this strain rewards consistent care. Use autoflowering seeds best practices: early final pot (18–27 L), 18–20 h light, and gentle LST to open up bud sites. No topping — let the vigour do the work.

Pro tip: Start with a light feeding schedule. This F1 hybrid grows fast but doesn’t need heavy nutrients early on. Let the roots establish, then ramp up in mid-flower for maximum resin production.

Outdoor Stealth & Speed: Harvest Before the Rain

Living in a short-summer climate? Milky Way F1 Auto finishes in 70–75 days, letting you harvest before autumn humidity hits. At 0.80–1.10 m (2.62–3.61 ft) tall outdoors, it’s discreet enough for guerrilla grows but powerful enough to dominate your garden.

Its resistance to mold and pests makes it a standout in humid conditions. Plant in a 20–25 L pot with organic super soil, and let nature take over. Thanks to its hybrid vigour, it handles temperature swings and minor drought better than most autos.

For best results, use Royal Queen Seeds’ recommended nutrient line and protect against fungus gnats early with beneficial nematodes. A layer of mulch keeps roots cool and moisture stable.

How to Choose the Best Use for You

Still unsure if Milky Way F1 Auto fits your style? Here’s a quick guide:

• If you’re a beginner: this strain is forgiving, fast, and nearly foolproof.
• If you’re short on time: 70 days from seed to harvest means two full grows per season.
• If you love flavor: the citrus-skunk profile with chocolate undertones is unforgettable.
• If you want discretion: its compact size and moderate smell make it stealth-friendly.
• If you’re an expert: use it for breeding, pheno-hunting, or as a benchmark for F1 performance.

Advantages and benefits that show up in every case

• Extremely high THC for a potent, euphoric, and physically relaxing effect
• Uniform growth — all plants look and perform the same
• XXL yields up to 600 g/m² (1.32 lb/ft²) indoors or 120 g/plant (4.23 oz/plant) outdoors
• Hybrid vigour means faster growth, stronger roots, and better stress resistance
• Highly aromatic — the most fragrant F1 in Royal Queen’s lineup
• Short life cycle — ready in just 70–75 days from germination
• Low maintenance — minimal training needed, no topping required

Technical specifications

• Breeder / Brand: Royal Queen Seeds
• Type: Autoflowering
• Dominance: Hybrid (Indica-leaning)
• Genetics: Blue Mammoth × Blue Dream × Sin Tra Bajo Auto (via inbred lines)
• Life cycle: 70–75 days (germination to harvest)
• Indoor yield: 500–600 g/m² (1.10–1.32 lb/ft²)
• Outdoor yield: 100–120 g/plant (3.53–4.23 oz/plant)
• Indoor height: 0.70–0.85 m (2.30–2.79 ft)
• Outdoor height: 0.80–1.10 m (2.62–3.61 ft)
• Difficulty: Low
• Structure: Compact, bushy, short internodes
• Climate: Temperate, Mediterranean, short summers
• Resistance: High resistance to mold, pests, and environmental stress
• Training: Suitable for LST and defoliation; avoid topping or FIM
• Recommended pot: 18–27 L final pot (early)
• Light: 18–20 h throughout the 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: Medium to high — use a carbon filter if needed
• THC: Very high (approx. 20–25%)
• CBD: Low (trace levels)
• Aromatic profile: Myrcene, farnesene, caryophyllene, pinene, limonene
• Flavour: Citrus, chocolate, pungent skunk, earth
• Effect: Euphoric, creative, physically relaxing — ideal for evening use

How to grow Milky Way F1 Auto: expert tips by phase

Get the most from your Milky Way F1 Auto with this concise, phase-by-phase guide based on real grower results and breeder insights.

Quick overview: autoflowering · Royal Queen Seeds · 70–75 day cycle · low difficulty · ideal for indoor tents, outdoor stealth, or greenhouse grows.

Safe start: Germinate in a moist paper towel or rapid rooter. Transplant once the taproot is 1–2 cm long. For a faster start, X-Seed organic vegan seed germinator | BAC boosts root development and reduces shock.

• Keep temperature at 22–25 °C and RH high (70%) during germination
• Use a light, airy seedling mix with low nutrients
• Place under low-intensity light (T5 or CFL) for first 3–5 days
• Water gently — avoid over-saturation
• Transplant only once, directly into final pot

Stable seedling: The first week is critical. Avoid stress to preserve vigour. Keep conditions stable and let the plant establish.

• Maintain 18–20 h light cycle throughout the entire grow
• Keep RH at 60–70% and temperature at 22–26 °C
• Water when top 2–3 cm of soil is dry
• Apply beneficial microbes like mycorrhizae early
• Do not top or prune — autos don’t recover well

Directed growth: Let the hybrid vigour shine. This strain grows fast and bushy — support early branching with soft ties.

• Switch to a growth-focused nutrient like Aqua Vega after week 2
• Use 18–20 h light and maintain good airflow
• Apply LST gently to expose lower nodes
• Keep pH at 6.0–6.5 (soil) or 5.8–6.2 (coco)
• Monitor EC — start low and increase gradually

Efficient flowering: Peak resin production starts week 4. Support bud density and terpene development.

• Begin bloom nutrients in week 3–4, such as Bio Flores
• Reduce RH to 40–50% to prevent mold
• Add PK booster (e.g., PK 13/14) in mid-flower for density
• Support heavy colas with stakes or netting
• Flush 7–10 days before harvest

Harvest, drying and curing: Time it right for maximum effect and flavor.

• Harvest when trichomes are mostly milky with some amber
• Dry at 18–20 °C and 55–60% RH for 10–14 days
• Cure in glass jars, burping daily for 2–4 weeks
• Store in a cool, dark place to preserve terpenes
• Enjoy the full citrus-chocolate punch

Frequently Asked Questions

How long does Milky Way F1 Auto take to harvest?

From germination to harvest, Milky Way F1 Auto takes 70–75 days. It flowers automatically and doesn’t require a light cycle change.

Is Milky Way F1 Auto good for beginners?

Yes! Its low difficulty, resistance to stress, and forgiving nature make it perfect for first-time growers.

Does it smell strong during flowering?

Yes, it has a medium to high odor — citrus and skunk notes become very noticeable in week 5. Use a carbon filter if growing indoors.

Can I top or train Milky Way F1 Auto?

LST is fine, but avoid topping, FIM, or aggressive pruning. Autoflowers don’t recover well from stress.

What’s the difference between F1 and regular hybrids?

F1 hybrids come from two pure inbred lines, resulting in uniform, vigorous plants. Regular hybrids often have unstable parents and variable phenotypes.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, but Milky Way F1 Auto changed the game for me. I ran three plants in my 1.20×1.20 m (3.94×3.94 ft) tent under a 600W LED. All three were nearly identical — same height, same structure, same flowering time. I didn’t top any, just did light LST in week 3.

I used organic soil with a bit of bat guano and watered with rainwater. Nutrients? Just Aqua Vega and Bio Flores, plus a touch of PK 13/14 in mid-flower. I harvested on day 72 — trichomes were milky with a hint of amber. Dried slowly, cured for three weeks.

The smoke was unreal — sweet blueberry and chocolate with a sharp citrus kick. The high hit fast: euphoric, creative, then deeply relaxing. Perfect for unwinding after work. One bong rip lasted me two hours. If you want consistency, speed, and power, this is your strain.

Customer review

"Grew Milky Way F1 Auto for the first time and was blown away. All three plants were uniform, grew fast, and produced dense, sticky buds. The flavor is incredible — citrus and skunk with a hint of chocolate. The high is strong but not overwhelming, perfect for evening use. Will definitely grow again."