How to Grow Lemon Autoflower
Lemon Autoflower, sold on our site as Lemon Auto, is a compact, sativa-leaning autoflower bursting with zesty citrus flavour. It pairs a potent 17–25% THC with a notable 2% CBD, a citrus, earthy, pine and skunk flavour and a creative, euphoric, uplifted effect, on a small, quick plant that is genuinely easy to grow.
Built from Lowryder #2 crossed with Lemon Skunk, this is a 60% sativa, 40% indica autoflower that keeps the bright lemon character and uplifting buzz of Lemon Skunk while the Lowryder parent brings the autoflowering trait, speed and small size.
Recommended Strains
Lemon Auto
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THC | 17% - 25% (High) |
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Type | Autoflowering |
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Yield | Medium |
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Phenotype | 40% Indica / 60% Sativa |
24k Gold Autoflower
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THC | 18% - 24% (High) |
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Type | Autoflowering |
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Yield | High |
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Phenotype | 40% Indica / 60% Sativa |
Because it is fast, forgiving and genuinely beginner-friendly, Lemon Autoflower is a great first grow. You can see the full genetics and buy Lemon Auto seeds on the strain page, and browse the rest of our autoflowering range alongside it.
Strain Profile at a Glance
| THC | 17–25% (high) |
|---|---|
| CBD | 2% |
| Lineage | Lowryder #2 x Lemon Skunk |
| Type | Autoflowering |
| Genetics | 60% Sativa / 40% Indica |
| Climate | Temperate |
| Life cycle | 8–10 weeks (seed to harvest) |
| Harvest | All season |
| Height | 3.28 ft / 1 m |
| Yield | Medium |
| Yield indoor | 1.15–1.31 oz/ft² (350–400 g/m²) |
| Yield outdoor | 2.82–3.53 oz/plant (80–100 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Citrus, Earthy, Pine, Skunk |
| Effects | Creative, Euphoric, Uplifted |
Promos & Deals
Climate and Where to Grow It
Lemon Autoflower does well in a temperate climate with mild, steady conditions and good light. It is a hardy, adaptable little plant that performs both outdoors and in a controlled indoor tent, and its small size makes it one of the easier autos to tuck away.
As an autoflower it does not wait for shortening days to bloom, so you can start it almost any time in the warmer part of the year, and run more than one crop in a season. It stays very compact at around 1 m, ideal for discreet or height-limited spaces, with a modest but worthwhile harvest per plant.
Indoors, keep daytime temperatures around 68–80°F (20–27°C) and keep humidity in check as the citrusy buds fill in. Its small stature makes it a great fit for a compact tent or a cupboard grow.
Autoflower Growing Basics
With any autoflower, the key rule is that you do not switch the light schedule to trigger flowering. Lemon Autoflower begins to flower by itself at around 3 weeks of age, so run a long day of 18–20 hours of light from seedling right through to harvest.
Start the seed directly in its final pot. Autos run on a fixed internal clock and dislike transplanting, and with a cycle this short there is little time to recover from a mid-run move. Keep training very gentle: the vegetative window is brief, so favour light low-stress training over topping, bending branches to open the canopy rather than cutting into the plant.
Feeding Schedule (EC Guide)
Autoflowers are light feeders, and a small one like this even more so, so start low and build up only as the plant asks. The EC values below track the short life-cycle stages rather than a separate veg-and-bloom switch.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Early weeks, raise nitrogen gently |
| Early flower | 1.2–1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4–1.6 | Peak bloom feed while the buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Life Cycle and Harvest
The full life cycle runs about 8–10 weeks from seed to harvest, which is fast and predictable. As an auto you harvest when the plant is ready rather than on a fixed date, so let the trichomes guide you rather than counting from a light change.
Expect vegetative growth in the first weeks, the automatic switch to flower around week 3, and quick bud formation through to the finish. The sativa lean gives it resinous, citrus-smelling flowers on a tidy frame. Harvest when most trichomes are cloudy with a few amber for the fullest expression, and give the plant a short plain-water flush before cutting.
Drying and Curing
Dry whole plants or branches in a dark room at around 60°F (15–18°C) and 55–60% humidity for 7–14 days, until the thin stems snap rather than bend. A slow, even dry stops the inside staying damp while the outside dries, which protects the bright citrus aroma.
Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure brings the zesty lemon and skunky-pine character forward and smooths the smoke, which is exactly what this citrus-forward auto deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Lemon Autoflower is a frosty, high-THC plant, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of citrusy concentrate from material most growers throw away.
Flavor and Terpenes
Lemon Autoflower leads with a zesty citrus-lemon note over earthy, piney and skunky undertones, the bright profile it inherits from its Lemon Skunk parent. It is a fresh, lively aroma with a classic funky edge beneath the lemon.
It carries a deep terpene stack. Six stand out: citral drives the sharp, lemony citrus note; alpha-pinene brings a clean, fresh pine edge; caryophyllene adds the peppery, skunky warmth; myrcene anchors an earthy, musky base; humulene deepens the woody, earthy side; and camphene adds a fresh, piney lift. A supporting cast of cedrene, borneol, cadinene and more fills in the herbal corners.
Effects and Best Use
With its 60% sativa base, Lemon Autoflower is reported as creative, euphoric and uplifted. It is a bright, lively, cerebral profile that suits daytime and active, creative or social use rather than a quiet evening wind-down.
At a potent 17–25% THC, paired with a touch of 2% CBD, it can be surprisingly strong for a small auto, so a little goes a long way. That upbeat high, the compact, beginner-friendly plant and the zesty lemon flavour make it a satisfying, easy grow.
Common Problems and Pro Tips
Lemon Autoflower is a small, easy, fast grow, but it is a potent, skunky sativa auto, so plan for the training and the smell.
- Train gently, not hard: as an autoflower it will not recover from heavy topping, so use low-stress bending while young and start it in its final pot.
- Plan for the smell: its zesty lemon and skunk aroma gets loud in flower, so run a carbon filter if you need to keep the grow discreet.
- Harvest on cloudy trichomes: THC can run up to 25%, so the harvest window matters, and checking the trichomes helps you cut at the strength you want.
Expert tip: it stays small at around 1 m, so good light and an open canopy get the most from it. Dry slowly and cure in jars so the lemon, pine and skunk notes settle rather than fading.
Frequently Asked Questions
Is Lemon Autoflower indica or sativa?
It is sativa-dominant, at 60% sativa and 40% indica, which gives it a bright, creative, uplifting effect with a light body side. That sativa lean also shapes the plant, which grows a fairly open structure, so a little low-stress training keeps the canopy even and the lower buds well lit.
How long is the life cycle?
About 8 to 10 weeks from seed to harvest. It flowers on age rather than on a light change and can be run all season as an autoflower. Plan your feed and training around that short, fixed window, because anything that stalls an auto costs you final yield you cannot recover later.
Do I need to change the light cycle?
No. Keep it on a long day of 18 to 20 hours of light from seedling to harvest. It starts flowering on its own at around three weeks, so there is no 12/12 flip to time. A steady, generous light schedule gives this small auto the energy to build its potent buds.
Is Lemon Autoflower good for beginners?
Yes. It is small, fast and forgiving, which makes it one of our more beginner-friendly autos. Start it in its final pot to avoid transplant shock, keep any training gentle and run a carbon filter for the skunk. Do that and it mostly looks after itself from seed to harvest.
What does Lemon Autoflower taste like?
Expect a zesty citrus-lemon flavour over earthy, piney and skunky notes, driven by its citral, alpha-pinene, caryophyllene and myrcene terpenes. The aroma is loud in flower, so run a carbon filter for discretion, and cure slowly in jars so the lemon and skunk settle rather than fading.
How much does it yield?
It is a medium producer: 1.15 to 1.31 oz/ft² (350 to 400 g/m²) indoors, and 2.82 to 3.53 oz (80 to 100 g) per plant outdoors. Good light and an open canopy help this small, fast auto make the most of its short life cycle and reach the top of that range.
