Cosmos F1 – Royal Queen Seeds · High-CBD Sativa Auto · F1 Hybrid Vigour & XXL Yields

Cosmos F1 by Royal Queen Seeds is a high-CBD autoflowering F1 hybrid that delivers XXL yields, exceptional stability, and a clear, meditative effect—perfect for growers who want uniform, resilient plants without psychoactive highs.

Are You Tired of Unpredictable CBD Strains?

Most CBD varieties leave you guessing: will the plant stretch too much? Will the yield be worth it? Will the effect actually help you unwind without clouding your mind?

Weak Genetics, Inconsistent Results, Wasted Time

Low-quality CBD seeds often mean weak plants, poor resin production, and frustratingly small harvests. You invest weeks of care only to end up with wispy buds and an underwhelming experience—far from the balanced relief you were hoping for.

Cosmos F1: The First True F1 CBD Strain That Delivers Every Time

Cosmos F1 changes the game. As the world’s first F1 hybrid CBD strain, it offers unmatched genetic stability, vigorous growth, and consistent XXL yields. With a crisp pine and creamy cookie aroma, high CBD and only 0.5% THC, it delivers a lucid, relaxing effect that keeps your mind sharp while soothing your body—ideal for daytime clarity or evening calm.

What It Feels Like to Grow and Use Cosmos F1

From the first sprout, Cosmos F1 stands out. It grows tall and strong—up to 1.00 m (3.28 ft)—with a classic sativa structure and dense, resin-coated buds. The aroma fills your grow space with fresh pine, sweet vanilla, and a spicy pepper kick. When vaporized, the flavour unfolds in layers: citrus, mint, and creamy cookies, ending with a smooth, earthy finish. The effect? A deep sense of calm without sedation—perfect for staying present, focused, and balanced.

How to Squeeze the Most Out of Your Cosmos F1 Grow

Maximize your harvest and experience with these pro tips:

• Start in a 20 L pot to support its vigorous growth
• Use 18–20 hours of light daily—no photoperiod switch needed
• Keep humidity at 40–50% during flowering to prevent mold
• Pair with HESI Power Zyme to boost root health and nutrient uptake
• Harvest when trichomes turn milky to amber for optimal effect
• Pair with Kit Hesi Starterbox Hydro for a complete, balanced feeding from seed to harvest
• Use a carbon filter if growing indoors—its aroma is potent

Advantages and Benefits in Your Day-to-Day Life

• High CBD, low THC means relaxation without mental fog
• Stable F1 genetics ensure every plant performs like the last
• Fast 75–85 day cycle lets you grow more rounds per year
• XXL yields mean more flower for tinctures, vaporizing or sharing
• Tall, strong structure reduces the need for support
• Peppery, complex flavour elevates your sensory experience

How It Fits With Other Products in Your Setup

Cosmos F1 thrives when paired with quality nutrients and root enhancers. It works especially well with Clon Fix during germination for faster, stronger starts. In flowering, it responds well to bloom boosters like PK+ 20/30, enhancing resin and density. Its sativa structure also makes it ideal for SCROG setups, letting you maximize light exposure and yield.

Technical specifications

• Breeder / Brand: Royal Queen Seeds
• Type: Autoflowering
• Dominance: Sativa
• Genetics: CBD Oregon
• THC: 0.5%
• CBD: Very high
• Flowering time: 45–55 days
• Harvest: 75–85 days after germination
• Height: 0.70–1.00 m (2.30–3.28 ft)
• Indoor yield: Up to 500 g/m² (17.64 oz/ft²)
• Outdoor yield: Up to 102 g/plant (3.60 oz/plant)
• Difficulty: Low
• Structure: Tall, Christmas tree-like, strong branching
• Climate: Temperate, short summers
• Resistance: High resistance to mold and stress
• Training: Suitable for LST, avoid topping
• Pot size: 18–27 L final pot
• Light cycle: 18–20 h
• Major terpenes: Myrcene, farnesene, limonene, pinene, caryophyllene
• Flavour: Pine, cookie, pepper
• Effect: Clear, focused, meditative

Frequently Asked Questions

Is Cosmos F1 really an autoflowering strain?

Yes, Cosmos F1 is a fully automatic autoflowering strain. It moves from vegetative to flowering stage based on age, not light cycle, making it easy to grow for beginners.

Will Cosmos F1 get me high?

No, with only 0.5% THC and very high CBD, Cosmos F1 provides a non-intoxicating, clear-headed effect—perfect for relaxation without impairment.

How much yield can I expect outdoors?

Under optimal conditions, you can harvest up to 102 g (3.60 oz) per plant. One grower on GrowDiaries reported exactly 102 g/plant, making it one of the highest-yielding CBD autos available.

Is it suitable for medical use?

While we can’t make medical claims, many users report using Cosmos F1 for stress relief, mental clarity, and physical relaxation. Always consult a healthcare professional for medical advice.

Can I grow it indoors in a small space?

Cosmos F1 can reach up to 1.00 m (3.28 ft), so it needs vertical space. Use LST (low-stress training) to control height and fit it in smaller tents.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Cosmos F1 in my 1.20 x 1.20 m tent with a 600W LED. I started with a 20 L fabric pot and used the Kit Hesi Starterbox Hydro from day one. What blew me away was the uniformity—every plant grew to the same height, with thick, resinous buds by week 10. The aroma is unreal: fresh pine with a creamy cookie finish. I vaporized it at different temps: low (170°C) gave citrus and mint, high (210°C) brought out vanilla and pepper. The effect is incredibly grounding—no couch lock, just deep calm and focus. I’ve recommended it to friends dealing with stress, and they’ve all come back amazed. If you want a reliable, high-CBD strain that actually delivers, this is it.