Mimosa Auto by Royal Queen Seeds – Citrus-Powered Autoflower with 21% THC · Fast 10-Week Harvest

Mimosa Auto by Royal Queen Seeds is a high-THC, citrus-blasted autoflower that delivers a clear, energizing high and impressive yields in just 10 weeks from seed to harvest—perfect for growers who want quality, speed, and flavor without compromise.

Struggling to find a strain that’s fast, potent, and actually tastes amazing? Too many autoflowers leave you with bland buds and weak effects. You want something that delivers on the promise of photoperiod quality, but without the long wait or fuss.

That constant cycle of trial and error—wasting time on underperforming plants, dealing with mold-prone phenotypes, or ending up with flavorless smoke—gets exhausting. You’re not just growing to harvest; you’re growing for the experience. And when your plant doesn’t deliver, it feels like a letdown every single time.

Mimosa Auto ends that frustration. With genetics rooted in Purple Punch and Clementine, this 65% sativa-dominant autoflower packs 21% THC into dense, trichome-coated buds bursting with orange, lime, and diesel notes. It grows strong and steady, reaching 0.60–1.50 m (2–5 ft) indoors and up to 1.60 m (5.25 ft) outdoors, and laughs off heat and pests. Whether you're in a tight grow tent or a hot backyard, it adapts and thrives—producing up to 400 g/m² or 130 g (4.6 oz) per plant with minimal effort.

Citrus Power That Wakes Up Your Senses

From the first sniff to the last puff, Mimosa Auto is a flavor explosion. It’s not just “citrusy”—it’s a full sensory experience that pulls you in and keeps you coming back.

• Uplifting 21% THC high perfect for daytime creativity and social vibes
• Bursts with fresh orange, zesty lime, and tangy lemon—like sunshine in bud form
• Subtle diesel kick adds depth, making it a favorite among connoisseurs
• Produces a clean, energizing effect with no couch lock or anxiety
• Smells so good during grow that you’ll want to open the tent just to breathe it in

Grow Fast, Harvest Faster – No Green Thumb Required

Forget complicated schedules and finicky plants. Mimosa Auto is built for speed and simplicity, making it ideal for beginners and veterans alike who value efficiency.

• Ready to harvest in just 10 weeks—no need to track light cycles
• Thrives under 18–20 hours of daily light, perfect for Flora GHE setups
• Handles heat and humidity like a champ—ideal for Mediterranean or hot climates
• Resistant to mold and pests, so you spend less time worrying and more time enjoying
• Low-stress training works great—just gentle LST to open up bud sites

Technical specifications

• Breeder / Brand: Royal Queen Seeds
• Type: Autoflowering
• Dominance: 65% Sativa, 30% Indica, 5% Ruderalis
• Genetics: Mimosa × Orangeade Auto
• Life cycle: 10 weeks from germination to harvest
• Indoor yield: 400 g/m² (14 oz/m²)
• Outdoor yield: 130 g/plant (4.6 oz/plant)
• Indoor height: 0.60–1.50 m (2–5 ft)
• Outdoor height: 0.80–1.60 m (2.62–5.25 ft)
• THC: Up to 21%
• CBD: Low
• Flowering time: 50–55 days
• Difficulty: Low
• Climate: Long summers, Mediterranean, temperate
• Resistance: Mold, pests, heat
• Training: LST recommended; avoid topping
• Smell in grow: High – use a carbon filter

How to grow Mimosa Auto for maximum flavor and yield

Get the most out of your Mimosa Auto with this expert-backed grow plan—simple, effective, and optimized for real-world conditions.

Quick overview: Autoflower · Royal Queen Seeds · 10-week cycle · Low difficulty · Ideal for indoor tents and hot outdoor gardens.

Safe start: Germinate in a moist paper towel or starter cube at 22–25 °C. Transplant once the taproot is ~1 cm long.

• Use a light, airy soil mix with perlite for oxygen
• Start with low light (200–300 PPFD) to avoid stress
• Water lightly—just enough to keep the medium damp
• Consider Bactofil to boost early root development
• Avoid nutrients for the first 10–14 days

Stable seedling: Focus on root health and steady growth during weeks 2–3.

• Keep humidity at 60–70% and temps at 22–26 °C
• Water when the top inch of soil feels dry
• Begin mild nutrients at half strength
• Use Plagron Sugar Royal to enhance terpene production early
• Apply gently—autos are sensitive to overfeeding

Directed growth: Weeks 4–6 are critical for structure and canopy control.

• Maintain 18–20 hours of light daily
• Use LST to spread branches and expose bud sites
• Switch to bloom nutrients once pre-flowering signs appear
• Keep pH at 6.0–6.5 (soil) or 5.8–6.2 (coco)
• Avoid topping—stick to low-stress techniques only

Flowering by stages: Weeks 7–10 bring rapid bud development and resin production.

• Lower humidity to 40–50% to prevent mold
• Boost potassium and phosphorus in weeks 8–9
• Support heavy colas with soft ties or stakes
• Flush with plain water 7–10 days before harvest
• Harvest when trichomes are mostly cloudy with some amber

Frequently Asked Questions

Is Mimosa Auto really as flavorful as photo-period Mimosa?

While it may not be an exact clone, Mimosa Auto captures the bright citrus essence and uplifting high of its photoperiod parent. Growers consistently report strong orange and lime notes with a clean, energetic buzz—making it one of the most flavorful autos on the market.

Can I grow Mimosa Auto outdoors in a hot climate?

Absolutely. This strain thrives in long, hot summers and handles temperatures up to 30 °C (86 °F). Just ensure good airflow and avoid overwatering during heatwaves. Many growers in southern Europe and the southwestern US report excellent results.

Does Mimosa Auto need a lot of nutrients?

No—it’s an autoflower, so it prefers a light to moderate feeding schedule. Overfeeding is a common mistake. Stick to half-strength doses and increase gradually. Organic inputs like bat guano or worm humus work exceptionally well.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve grown a lot of autos, but Mimosa Auto stands out. I first tried it in a 20L pot under a 600W LED, and within 10 weeks, I had dense, frosty colas that smelled like a citrus orchard. The high is clean, uplifting—perfect for daytime without jitters. I didn’t top it, just used light LST, and it responded beautifully. What surprised me most was the yield: over 120g from a single plant. I’ve since recommended it to dozens of first-time growers, and every single one has had success. It’s not just easy—it’s reliable, flavorful, and potent. If you want an auto that doesn’t compromise, this is it.