How to Grow Lemon OG Fast Version
Lemon OG Fast Version is the fast-flowering version of Lemon OG, a 60% indica-dominant cross of Super Lemon Haze and Captain Krypt OG. It carries a THC level of 14 to 18%, placing it in the low to medium range, and delivers an energetic, giggly and relaxed effect over a zesty citrus, earthy and skunk flavor. This guide walks you through the whole grow, from germinating the seeds to the final cure.
The Fast Version is the draw here: it is a photoperiod plant, not an autoflower, but it finishes bloom quickly once you flip the lights. It stays a compact 1.2 m, gives a high yield, and its quick turnaround makes it forgiving and well suited to first-time growers.
Recommended Strains
Lemon OG Fast Version
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THC | 14% - 18% (Medium) |
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Type | Fast Flowering |
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Yield | High |
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Phenotype | 60% Indica / 40% Sativa |
Lemon OG Fast Version at a Glance
Before you plant anything, it helps to see the full picture in one place. Here is the quick profile for this fast-flowering, citrus-forward indica, taken straight from the strain’s grow data.
| Seed type | Fast-flowering (photoperiod, feminized) |
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| Genetics | Super Lemon Haze x Captain Krypt OG |
| Phenotype | 60% Indica / 40% Sativa |
| THC | 14–18% (low to medium) |
| Flowering time | 8–10 weeks |
| Harvest | All season |
| Height | up to 3.94 ft (1.2 m) |
| Yield indoor | 1.64–2.13 oz/ft² |
| Yield outdoor | 21.16–28.22 oz/plant |
| Climate | Temperate |
| Flavors | Citrus, Earthy, Skunk |
| Effects | Energetic, Giggly, Relaxed |
| Difficulty | Beginner-friendly |
These are fast-flowering seeds, so you get photoperiod genetics with a much shorter bloom. Its 60% indica lean places it among the indica seeds, and its Super Lemon Haze side keeps it among the haze strains. Its strong output also earns it a spot with the high-yielding seeds.
Promos & Deals
How to Germinate Lemon OG Fast Version Seeds
A healthy harvest starts at germination. The paper towel method is hard to beat: fold the Lemon OG Fast Version seeds inside two damp sheets, slide them between two plates, and keep them somewhere dark at 70 to 79°F. A taproot usually appears in two to five days.
Once the taproot is a few millimeters long, move each seed root-down about 1 cm deep into a small pot of light, airy medium. Keep it lightly moist rather than soaked, hold humidity around 65 to 70%, and give soft light while the first true leaves open. Because it is a photoperiod plant, you have the normal veg window to build a strong root system before you flip it.
Starter tips
- Use plain, lightly pH-balanced water (pH 5.5 to 6.5) for the first week.
- Keep seedlings warm and humid, but never waterlogged.
- Hold off on nutrients until the second set of serrated leaves appears.
Growing Lemon OG Fast Version in the Vegetative Stage
Unlike an autoflower, Lemon OG Fast Version is a photoperiod plant, so you control the veg stage with the light schedule. Keep it on 18 hours of light a day for as long as you want it to grow, aim for day temperatures of 68 to 79°F, and hold humidity around 50 to 60%. As a 60% indica it stays compact and bushy, reaching up to about 1.2 m.
This is the stage to shape the plant. Topping early and using low-stress training to spread the branches opens up the canopy, improves airflow, and lifts the yield. Because this version blooms fast once flipped, give it enough veg time first so it has the frame to carry its dense buds.
Its compact build and all-season nature make it productive both indoors and out:
- Southern California and the Southwest: the warm, dry season suits its quick bloom and lets you time an early finish before any autumn damp.
- Pacific Northwest and cooler states: its fast flowering is a real advantage, letting you harvest before the cold and wet of late autumn arrive.
- Short-season gardens: because the bloom is quick, it fits climates where a standard photoperiod plant would run out of warm weather.
Flowering and Buds of Lemon OG Fast Version
Indoors, flip Lemon OG Fast Version to a 12/12 light cycle to trigger flowering. This is where the Fast Version earns its name, with a bloom noticeably shorter than a standard photoperiod plant while still giving a full 8 to 10 week window to ripen. Outdoors it is all-season, so you can time the quick finish to your local window.
Through bloom, drop humidity to 40 to 45% and keep air moving so the dense flowers stay clean. It packs on compact, resinous buds with a zesty citrus aroma over an earthy, skunky base, the lemon-haze signature of its parents.
At 14 to 18% THC it sits in the low to medium range, giving an energetic, giggly and relaxed effect that stays bright and sociable rather than heavy.
Common Problems and Pro Tips
Lemon OG Fast Version is beginner-friendly, but its fast, dense flowering points to a few things worth watching.
- Bud rot in dense colas: its tight, resinous flowers can trap humidity, so keep a fan moving and humidity below 45% late in flower.
- Veg long enough first: because bloom is short, give it solid veg time so the plant has the size to fill out before it flips.
- Watch the citrus-skunk smell: it gets loud in flower, so run a carbon filter indoors if odor is a concern.
Expert tip: the Fast Version rewards good timing. Decide your final plant size during veg, flip while there is still room to stretch, and have your drying space ready, because a fast bloom comes around quicker than growers expect.
Aroma, Flavor and Effects
The nose is bright and loud: a zesty lemon-citrus top note over an earthy, skunky base. It leans fresh and tangy rather than sweet, the lemon-haze character of Super Lemon Haze crossed with the earthy punch of its OG side.
The flavor follows the nose, zesty citrus over an earthy, skunky finish. On the effect side it is energetic, giggly and relaxed, a bright, upbeat feel that still settles into the body. Because THC runs a moderate 14 to 18%, it stays mellow and easy to enjoy.
Dominant terpenes
Lemon OG Fast Version carries a deep, citrus-led terpene profile. The most influential are Limonene, Linalool, Terpinolene, Nerolidol, Citral and Eugenol: Limonene drives the zesty lemon aroma, Linalool adds a soft floral note, Terpinolene a fresh, complex lift, Nerolidol a woody-floral depth, Citral a sweet, lemony accent, and Eugenol a warm, clove-like spice. Behind them sits a broad supporting cast, including Cedrene, Terpineol, Borneol, Camphene, Fenchol and Phytol, which rounds out its citrus-and-skunk character.
Nutrient Schedule
Treat the figures below as a starting map, not a rulebook. Lemon OG Fast Version is a steady feeder, so read the plant first: tip burn means back off, while pale, slow growth means it wants a little more. All values use EC.
| Stage | EC |
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| Seedling | 0.4–0.6 |
| Growth | 0.8–1.2 |
| Early flower | 1.2–1.4 |
| Full flower | 1.4–1.6 |
| Flush | 0.0–0.4 |
Keep the pH around 6.0 to 6.5 in soil and 5.5 to 6.0 in hydro so the roots can actually take up what you feed.
What to Do With Your Trim: Extracts and Hash
Lemon OG Fast Version builds a heavy coat of resin, so its trim is genuinely worth keeping. The sugar leaves you take off while manicuring are loaded with trichomes and suit Ice Water Hash, where cold water and agitation separate the resin heads into a clean, solventless concentrate. Pressing that hash into rosin keeps the zesty citrus-skunk flavor intact, or you can run a solvent extraction if that is your setup. The bare stems will not extract, but chopped and composted they feed organic matter back into the soil for your next grow.
Harvesting, Drying and Curing Lemon OG Fast Version
Timing the harvest comes down to the trichomes. Grab a loupe and watch the heads turn from clear to milky white; a scattering of amber signals peak ripeness. With this Fast Version it ripens in a quick 8 to 10 week window after the flip, and because it is all-season you simply harvest when the plant is ready.
After the cut, hang the branches in a dark room at 59 to 68°F with humidity near 50% and gentle air movement. Slow beats fast: drying over 10 to 14 days protects the citrus, earthy and skunk aromas that define this strain. When the small stems snap instead of bending, move the buds into jars.
Cure in sealed glass, opening the jars daily for the first week to let moisture escape, then easing off as the aroma deepens. Two to four weeks of patience here is where the zesty lemon and earthy skunk really come forward, and it is the step most first-time growers rush.

Frequently Asked Questions
Is Lemon OG Fast Version an autoflower?
No, Lemon OG Fast Version is not an autoflower. It is a fast-flowering photoperiod strain, so you still switch it to a 12/12 light cycle to start bloom. The difference is speed: its flowering is shorter than a standard photoperiod indica, while it keeps full photoperiod genetics rather than ruderalis.
How long does Lemon OG Fast Version take to flower?
Lemon OG Fast Version ripens in an 8 to 10 week window once you switch it to a 12/12 light cycle indoors, faster than a standard photoperiod plant. That quick bloom is the whole point of the Fast Version. Outdoors it is all-season, so you can time its finish to your local climate window.
How strong is Lemon OG Fast Version?
Lemon OG Fast Version has a THC level of 14 to 18%, which places it in the low to medium range. The effect is energetic, giggly and relaxed, a bright, upbeat feel that still settles into the body. That moderate potency makes it a mellow, approachable strain for a wide range of growers.
How much does Lemon OG Fast Version yield?
Lemon OG Fast Version is high-yielding. Indoors it gives around 1.64 to 2.13 oz/ft², and outdoors it can reach a big 21.16 to 28.22 oz per plant in good conditions. Enough veg time, topping and an even canopy are what help it fill out to its full potential.
What does Lemon OG Fast Version taste and smell like?
Lemon OG Fast Version leads with a zesty lemon-citrus aroma over an earthy, skunky base. It is bright and tangy rather than sweet, a classic lemon-haze profile. Both the aroma and flavor deepen as the buds cure slowly in the jar after harvest, keeping that zesty citrus front and center.
Is Lemon OG Fast Version an indica or a sativa?
Lemon OG Fast Version is indica-dominant, at 60% indica and 40% sativa. Built from Super Lemon Haze and Captain Krypt OG, it has a compact, bushy structure but an energetic, giggly and relaxed effect, with the bright haze lift balanced by its OG body.


