Fast Eddy Autoflower
Cannabis seeds
by Royal Queen Seeds
Fast Eddy Autoflower Cannabis Seeds
Fast Eddy Autoflower is a CBD-rich feminised autoflowering cannabis seed from Royal Queen Seeds that goes from seed to harvest in just 8–9 weeks. Built from a cross of Cheese, Juanita la Lagrimosa, and Ruderalis genetics, this strain delivers a high CBD content alongside a modest 9% THC — producing a clear, functional effect rather than a heavy stone. If you want a low-fuss grow with genuine medicinal potential, this is where you start.
How Many Seeds Do You Need?
Fast Eddy Autoflower is available in packs of 1, 3, 5, and 10 seeds. For a first run, 3 seeds gives you a safety margin — if one doesn't germinate or you make a rookie mistake, you've still got plants in the ground. Running a full tent? Go with 10. A single seed makes sense only if you're testing the genetics before committing to a larger grow.
| Specification | Detail |
|---|---|
| Seed Bank | Royal Queen Seeds |
| Genetics | Cheese x Juanita la Lagrimosa x Ruderalis |
| Type | Feminised Autoflowering |
| THC Content | 9% |
| CBD Content | High |
| Seed to Harvest | 8–9 weeks |
| Indoor Height | 60–100 cm |
| Outdoor Height | 80–120 cm |
| Indoor Yield | Up to 450 g/m² |
| Outdoor Yield | 80–130 g per plant |
| Flavour Profile | Citrus, skunk, cheese, earthy |
| Available Packs | 1, 3, 5, or 10 seeds |
Complete your grow setup with a propagation kit to give these seeds the best possible start. Fast Eddy stays compact enough for an 80x80 grow tent — pair it with a carbon filter if you're growing indoors, because that citrus-skunk aroma will make itself known. A basic pH testing kit is also worth grabbing; autoflowers don't give you time to recover from nutrient lockout.
Why Fast Eddy Autoflower Seeds Deserve a Spot in Your Grow
Most CBD-focused strains ask you to wait. Long flowering times, photoperiod light schedules, careful training — it all adds up. Fast Eddy strips that back to the essentials. The Ruderalis genetics mean this plant flowers on its own clock, regardless of your light cycle. No timers to fiddle with, no light leaks to stress about. You run 18–20 hours of light daily from seed to harvest and let the plant do its thing. According to research published in Plants, Cannabis sativa was among the first plants identified as having flowering regulated by photoperiod, but Ruderalis genetics bypass that dependency entirely (PMC11859550). That's the magic of autoflowering — and Fast Eddy does it faster than most.
The Cheese parentage brings that unmistakable pungent, savoury backbone, while Juanita la Lagrimosa contributes the high CBD content that makes this strain genuinely useful for people who want the plant's therapeutic properties without getting floored. At 9% THC, you're looking at a mild, clear-headed effect — enough to notice, not enough to cancel your afternoon. We'd describe the smoke as intensely citrusy with a skunky cheese undercurrent. It's not subtle. If you're after a discreet-smelling strain, this isn't it. But if flavour matters to you, Fast Eddy delivers.
The honest limitation? Yields are decent but not record-breaking. 450g/m² indoors is the ceiling under optimal conditions — good light, proper nutrients, no stress. Outdoors, you're looking at 80–130g per plant. For a plant that finishes in 8–9 weeks and barely reaches a metre tall, that's a fair trade. Compared to something like Royal Queen Seeds' Royal Cheese Automatic, Fast Eddy sacrifices a bit of THC punch for a significantly better CBD profile. If CBD is the priority, Fast Eddy is the better pick.
Growing Fast Eddy Autoflower: From Seed to Harvest
Fast Eddy autoflower cannabis seeds are built for growers who want results without a steep learning curve. The compact 60–100cm indoor height means you won't need to top or train aggressively — though a gentle LST (low-stress training) in the first few weeks can open up the canopy and boost light penetration. Here's how to get the most from your seeds.
- Germinate your Fast Eddy seeds using the paper towel method or by placing them directly into moist, pre-fertilised soil. Taproots typically emerge within 24–72 hours.
- Plant the germinated seed about 1–2cm deep in its final container. Autoflowers don't like being transplanted — the stress costs you days you can't afford in an 8–9 week lifecycle. Use a 7–11 litre pot from the start.
- Set your light schedule to 18 hours on, 6 hours off. Some growers run 20/4 for more aggressive growth. Fast Eddy will flower automatically around week 3–4 regardless of light schedule. Target 400–600 PPFD during early vegetative growth, increasing to 600+ PPFD once flowering begins.
- Keep humidity around 60–70% during the seedling stage, dropping to 40–50% during flowering to prevent mould. Fast Eddy's compact structure means airflow between buds can be limited — a small oscillating fan pointed at the canopy helps.
- Feed lightly. Autoflowers are sensitive to overfeeding. Start at half the manufacturer's recommended nutrient dose and increase only if the plant looks hungry (pale leaves, slow growth). Switch to bloom nutrients when you see the first pistils.
- Harvest when 70–80% of trichomes have turned milky white with a few amber ones appearing. For a CBD-dominant harvest, some growers prefer to pull slightly earlier when trichomes are mostly milky — this can preserve a slightly higher CBD-to-THC ratio.
What Does Fast Eddy Weed Taste and Feel Like?
Crack open a cured bud of Fast Eddy and you'll get hit with a sharp citrus punch layered over a deep, cheesy funk. It smells like someone squeezed a lemon over a wedge of aged cheddar in a room that hasn't been aired out in a week. Smoking or vaping it, the citrus comes through first — bright and almost tangy — followed by that earthy skunk on the exhale. It's a proper flavour experience, not a one-note strain.
The effect is where Fast Eddy really sets itself apart from the crowd. At 9% THC with a high CBD content, the experience is clear and comfortable. You stay sharp. No couch-lock, no foggy head, no losing your train of thought mid-sentence. It's the kind of strain you can smoke in the afternoon and still get things done. Traditionally, CBD-rich cannabis has been used for relaxation and comfort, and Fast Eddy fits that profile well — it takes the edge off without switching you off. According to research published in the International Journal of Molecular Sciences, autoflowering varieties like those incorporating Ruderalis genetics can reach very early maturity in 1–2 months (PMC7968383), which means Fast Eddy's cannabinoid profile develops rapidly and efficiently within its short lifecycle.
Fast Eddy for Outdoor and Stealth Growing
Fast Eddy autoflower cannabis seeds are a strong choice for outdoor growers in northern climates where summers are short. The 8–9 week total lifecycle means you can plant in late May and harvest by late July or early August — well before autumn rains and mould become a problem. At 80–120cm outdoors, the plant stays short enough to tuck behind a tomato cage or blend into a vegetable patch. If you're planning a stealth grow on a balcony or in a small garden, Fast Eddy's compact stature works in your favour.
One thing to watch outdoors: Fast Eddy doesn't have the most robust mould resistance. That short, dense bud structure can trap moisture if you get a week of rain during flowering. If you're growing in a humid climate, shake the plants gently after rain to dislodge water from the buds, and consider a simple rain cover during the final two weeks before harvest.
Frequently Asked Questions
How long does Fast Eddy Autoflower take from seed to harvest?
Fast Eddy Autoflower completes its full lifecycle in 8–9 weeks from germination. This makes it one of the fastest CBD-rich autoflowering strains available from Royal Queen Seeds. Some growers report 10–12 weeks in cooler conditions, but under proper lighting and temperature, 9 weeks is typical.
What does Fast Eddy Autoflower taste like when smoked?
Expect an intense citrusy skunk aroma with distinct cheese and earthy undertones. When smoked in a large joint or bowl, the citrus hits first, followed by a savoury, funky cheese flavour on the exhale. It's pungent — not a strain for discreet indoor smoking without ventilation.
Is Fast Eddy Autoflower good for beginners?
Yes. Fast Eddy is one of the most forgiving autoflowering strains you can grow. It doesn't need light schedule changes, stays compact at 60–100cm indoors, and finishes quickly. The main thing beginners get wrong is overwatering and overfeeding — go easy on both and you'll be fine.
What is the THC and CBD content of Fast Eddy?
Fast Eddy produces approximately 9% THC alongside a high CBD content. The exact CBD percentage varies by phenotype and growing conditions, but the strain was specifically bred by Royal Queen Seeds for a favourable CBD-to-THC ratio. The effect is clear and functional rather than heavy.
How much does Fast Eddy Autoflower yield?
Indoors under optimal conditions, Fast Eddy can produce up to 450g/m². Outdoors, individual plants typically yield between 80 and 130 grams. These aren't the highest numbers you'll see on an autoflower, but for an 8–9 week lifecycle with high CBD content, it's a solid return.
Can I grow Fast Eddy Autoflower outdoors in a cold climate?
Fast Eddy's short lifecycle makes it well suited for regions with brief summers. Plant after the last frost and you can harvest before autumn. The plant stays at 80–120cm outdoors — compact enough for balcony grows or small gardens. Watch humidity levels during flowering to prevent mould on the dense buds.
Does Fast Eddy need a special light schedule?
No. As an autoflowering strain, Fast Eddy flowers based on age, not light cycle. Run 18–20 hours of light daily from seed to harvest. No need to switch to 12/12 like photoperiod strains. This simplifies the grow significantly, especially if you're running a basic setup without timers.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.