Lemon Bean Fast
Cannabis seeds
by Advanced Seeds
Lemon Bean Fast Cannabis Seeds by Advanced Seeds
Lemon Bean Fast is a sativa-dominant feminised cannabis seed from Advanced Seeds that finishes flowering in just 50–55 days — roughly two weeks faster than most photoperiod strains in the same league. Built from a cross of Lemon Tree and Eddy OG with a touch of ruderalis bred in for speed, this variety packs 22% THC into compact indoor plants or towering outdoor bushes. If your grow calendar is tight but you still want serious yields and a proper sativa effect, this is the seed to drop.
Pack Size
Lemon Bean Fast is available in packs of 3 feminised seeds. One pack is enough for a full small-tent run or a solid start to an outdoor plot.
| Specification | Detail |
|---|---|
| Seed bank | Advanced Seeds |
| Genetics | Lemon Tree x Eddy OG (with ruderalis influence) |
| Type | Feminised photoperiod (fast version) |
| Dominant profile | Mostly sativa |
| THC | 22% |
| Indoor flowering time | 7–8 weeks (50–55 days) |
| Outdoor harvest | Mid-September |
| Indoor height | 65–85 cm |
| Outdoor height | 220–250 cm |
| Indoor yield (optimal) | Up to 550 g/m2 |
| Outdoor yield | Comparable to indoor |
| Aroma/flavour | Citrus, earthy, spicy |
| Seeds per pack | 3 |
| SKU | CSAD0081 |
Why Lemon Bean Fast Cannabis Seeds Deserve a Spot in Your Grow
Speed kills — in a good way. The biggest headache for growers running photoperiod strains is the wait. You've got 8, 10, sometimes 12 weeks of flowering ahead of you, and every extra day is another day something can go wrong: mould creeping in during a humid autumn, pests finding your outdoor plot, or simply running out of patience while your tent sits occupied. Lemon Bean Fast cuts that window to 7–8 weeks indoors, and outdoor growers can chop by mid-September — well before the worst of the autumn weather rolls in across most of northern Europe.
But here's the thing we appreciate about this strain: Advanced Seeds didn't sacrifice potency for speed. At 22% THC, Lemon Bean Fast sits comfortably alongside slower-flowering varieties in the same catalogue. The sativa-dominant genetics come through clearly — expect an energising, uplifting effect that's more "let's go do something" than "let's melt into the sofa." If you've ever grown a pure sativa and spent 14 weeks watching it stretch, you'll understand why a 50–55 day sativa-leaning flower is genuinely unusual.
The one honest limitation: indoor height tops out at 65–85 cm, which is brilliant for small tents but means you're working with a compact canopy. You'll want to train early if you're aiming for that 550 g/m2 ceiling — a bit of LST or a ScrOG net goes a long way. Outside, the opposite applies: these plants shoot up to 220–250 cm and get properly lanky, so plan your spacing and consider topping if you need to keep things discreet.
Aroma and Flavour of Lemon Bean Fast
Lemon Bean Fast smells like old-school cannabis with a citrus twist — think lemon zest cracked over damp earth and a back-end kick of spice that lingers on the exhale. It's not one of those single-note lemon strains that smells like furniture polish. The Lemon Tree parentage brings genuine citrus sharpness, while the Eddy OG side grounds everything with earthy, slightly peppery undertones. During the last two weeks of flower, the terpene production ramps up noticeably. If you're growing indoors without a carbon filter, your neighbours will know about it.
How to Grow Lemon Bean Fast Seeds
- Germinate your Lemon Bean Fast seeds using the paper-towel method or directly in a starter plug. Keep temperatures between 22–26°C and expect taproots within 48–72 hours.
- Transplant seedlings into their final containers once the first set of true leaves appears. For indoor grows, 11-litre pots work well given the compact 65–85 cm stature. Outdoors, use at least 25-litre pots or plant directly in the ground for maximum root development.
- Provide 18–20 hours of light during the vegetative phase. Lemon Bean Fast responds well to low-stress training (LST) — gently bend the main stem outward to open up the canopy and encourage even light distribution across future bud sites.
- Switch to a 12/12 light cycle to trigger flowering. Indoors, expect the first pistils within 7–10 days of the flip. The fast-version genetics mean you'll see rapid bud development from week 3 onward.
- Monitor humidity closely during weeks 5–8. Keep relative humidity below 50% to prevent mould in the dense flower clusters. Good airflow is non-negotiable — a small oscillating fan pointed at canopy level does the job.
- Harvest at 7–8 weeks of flowering (50–55 days). For outdoor grows, target mid-September. Check trichomes with a jeweller's loupe: mostly milky with a few amber heads is the sweet spot for a clean sativa effect.
- Dry in a dark, ventilated space at 18–20°C and 55–60% humidity for 7–10 days. Cure in glass jars for at least two weeks, burping daily for the first few days. The citrus terpenes really come alive after a proper cure.
Lemon Bean Fast vs Other Fast-Flowering Cannabis Seeds
If you're weighing up fast-version strains, Lemon Bean Fast sits in a specific niche: sativa-dominant, high-THC, and genuinely compact indoors. Many fast-flowering seeds lean indica-heavy because those genetics naturally finish quicker — so finding a sativa-leaning option that wraps up in 50–55 days is less common than you'd think. Compared to a standard photoperiod sativa that might need 10–12 weeks of flower, you're saving a full month of grow time. That's a full month less electricity, a full month less risk, and a full month sooner you're trimming.
| Trait | Lemon Bean Fast | Typical fast-version indica | Standard photoperiod sativa |
|---|---|---|---|
| Flowering time | 50–55 days | 45–55 days | 70–84 days |
| THC | 22% | 18–22% | 18–25% |
| Indoor height | 65–85 cm | 60–100 cm | 100–180 cm |
| Effect profile | Energising, uplifting | Relaxing, sedating | Energising, cerebral |
| Indoor yield | Up to 550 g/m2 | 400–550 g/m2 | 450–600 g/m2 |
The takeaway: if you want sativa effects without the sativa wait, Lemon Bean Fast is the best fast-flowering sativa we'd point you toward. If you're after a heavier, more sedating result and don't mind indica genetics, there are plenty of fast indicas in the catalogue — but they're a completely different smoke.
Running Lemon Bean Fast in a small tent? Pair these seeds with a complete grow kit that includes lighting, ventilation, and a carbon filter — you'll need that filter once the citrus terpenes start pumping around week 5. A ScrOG net is also worth grabbing to make the most of the compact indoor height and push yields closer to that 550 g/m2 mark.
Frequently Asked Questions
How long does Lemon Bean Fast take to flower?
Lemon Bean Fast finishes flowering in 7–8 weeks indoors, which translates to roughly 50–55 days from the flip to 12/12. Outdoor growers can expect to harvest by mid-September.
What is the THC content of Lemon Bean Fast?
Lemon Bean Fast produces flowers with approximately 22% THC. This is consistent across indoor and outdoor grows, though actual levels depend on growing conditions, light intensity, and nutrient management.
How tall does Lemon Bean Fast grow indoors?
Indoors, Lemon Bean Fast stays compact at 65–85 cm — well suited to small tents and low-ceiling grow rooms. Outdoors is a different story: expect 220–250 cm of lanky sativa growth.
Is Lemon Bean Fast suitable for beginners?
Yes. The compact indoor size, fast flowering time, and robust vigour make Lemon Bean Fast forgiving for newer growers. Just keep humidity in check during late flower and you'll be fine.
What does Lemon Bean Fast smell and taste like?
Citrus-forward with earthy and spicy undertones — think fresh lemon zest over damp soil. The Lemon Tree genetics bring the sharpness, while Eddy OG adds depth. The smell intensifies significantly in the final two weeks of flowering.
What yield can I expect from Lemon Bean Fast?
In optimal indoor conditions, Lemon Bean Fast can produce up to 550 g/m2. Outdoor yields are comparable. Training techniques like LST or ScrOG help maximise output from the compact indoor plants.
What is a "fast version" cannabis seed?
Fast-version seeds are photoperiod strains bred with a small amount of ruderalis genetics to shorten the flowering period without converting to full autoflower. They still require a 12/12 light switch to flower but finish significantly quicker than standard photoperiod versions.
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.