How to Grow Purple Lemonade Autoflower
Purple Lemonade Auto is a colorful, sweet-and-citrus autoflowering strain that crosses Purple Lemonade with a ruderalis, so it flowers on age. It is a 70/30 indica with a medium 20-22% THC, a sweet, lemon and citrus flavor, and an energetic, euphoric, relaxed effect. Fast, frosty and a reliable yielder, it marries a zesty lemon profile with deep purple color in an easy auto grow.
As an autoflowering strain, Purple Lemonade Auto flowers automatically with age rather than waiting on a change in the light cycle, so there is no need to switch it to shorter days. You simply give it long days from start to finish and it starts flowering on its own after a few weeks, running its whole life cycle in about 8 to 10 weeks from seed to harvest. That speed and simplicity are exactly what make autos so easy to grow.
Recommended Strains
Purple Lemonade Autoflower
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THC | 20% - 22% (Medium) |
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Type | Autoflowering |
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Yield | High |
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Phenotype | 70% Indica / 30% Sativa |
Purple Lemonade Autoflower HMC Edition
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THC | 20% - 22% (Medium) |
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Type | Autoflowering |
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Yield | High |
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Phenotype | 70% Indica / 30% Sativa |
Zesty, colorful and easy, Purple Lemonade Auto is a rewarding auto to grow whether you are new to it or experienced. You can see the full genetics and buy Purple Lemonade Auto seeds on the strain page, and browse the rest of our autoflowering seeds alongside it.
Strain Profile at a Glance
| THC | Medium (20-22%) |
|---|---|
| Lineage | Purple Lemonade x Ruderalis |
| Type | Autoflowering |
| Genetics | 70% Indica / 30% Sativa |
| Climate | Temperate |
| Life cycle | 8-10 weeks seed to harvest |
| Harvest (outdoor) | All season |
| Height | 4.92 ft / 1.5 m |
| Yield indoor | 1.31-1.64 oz/ft² (400-500 g/m²) |
| Yield outdoor | 17.64-19.4 oz/plant (500-550 g/plant) |
| Grow difficulty | Easy, beginner-friendly |
| Flavors | Citrus, Lemon, Sweet |
| Effects | Energetic, Euphoric, Relaxed |
Promos & Deals
Growing an Autoflowering Strain
Purple Lemonade Auto flowers on its own schedule, starting to bloom a few weeks after it sprouts no matter how long the days are. That means you keep it under long light the whole way through, typically 18 hours on and 6 off, or even 20/4, from seedling right to harvest; there is no switch to a shorter day to trigger flowering. The trade-off is that you cannot delay flowering to grow the plant bigger first, so every week of healthy early growth counts.
Because autos grow fast and do not like having their roots disturbed, start Purple Lemonade Auto in its final pot rather than transplanting it. Sow the seed straight into the container it will finish in, go easy on the feed while it is young, and let it establish without a check. With a short life cycle of around 8 to 10 weeks from seed to harvest, a smooth start is the single biggest thing you can do for a strong, even finish.
Climate and Where to Grow It
Purple Lemonade Auto suits a temperate climate and, like most autos, it is flexible about when you plant it. Because it flowers on age rather than on the season, you can run it at almost any time where the weather is warm enough, which is why its harvest window is listed as all season; outdoors you can even fit in more than one cycle in a long, warm year. At a moderate 1.5 m it slips easily into a tent or a sunny spot.
Yields are high and reliable in both settings: around 400-500 g/m² indoors and 500-550 g per plant outdoors on its short cycle, which is why it sits among our best high-yielding seeds. As a sturdy, forgiving indica it is one of our best autoflowering seeds, so the main job is a smooth start and good light.
Keep humidity sensible through flowering to protect those resinous buds: around 55-60% early on, nearer 40% as the flowers fill out, and lower toward harvest. Tight colas can trap moisture inside, so steady airflow through the canopy keeps the finish clean. Aim for temperatures around 68-80°F (20-27°C), and let the nights cool a little late in flower to coax out the deep purple color this strain is known for.
Feeding Schedule (EC Guide)
Purple Lemonade Auto is a vigorous, productive auto, but autos want a lighter hand than photoperiod plants, so keep the feed modest and build slowly. Start very light, raise it gently as the plant grows, push a little more phosphorus and potassium through flower, then flush at the end so the sweet, lemon and citrus notes come through clean. The ranges below are a starting guide; adjust to your water and medium.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4-0.6 | Very light feed while roots establish in the final pot |
| Early growth | 0.8-1.2 | Raise nitrogen gently as the plant builds size |
| 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 |
Flowering and Harvest
Purple Lemonade Auto starts flowering a few weeks from sprouting and runs its whole cycle in about 8 to 10 weeks from seed to harvest, with no change in the light cycle needed. It fills out with resin-coated, trichome-frosted buds, often turning deep purple in a cool finish, developing a sweet, zesty lemon aroma with a bright citrus top. Because it flowers on age, its harvest comes on a fixed, quick timeline.
Yields are high and reliable: around 400-500 g/m² indoors and 500-550 g per plant outdoors on its short cycle. Keep the colas supported and the canopy open so the lower buds get light, feed it lightly through flower, and harvest when most of the trichomes have turned cloudy with a few amber for the fullest sweet-lemon flavor and the most rounded effect.
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 protects both the bright, volatile lemon terpenes and the purple color, so do not rush it with heat or a dehumidifier cranked too high.
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 is what brings out the sweet, lemon and citrus notes and smooths the smoke, turning a freshly dried auto harvest into the bright, zesty, colorful result Purple Lemonade is known for.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Purple Lemonade Auto is a resinous plant, so its trim is good for dry sift, bubble hash or rosin. That resin and sweet, zesty lemon aroma make the trim genuinely useful, turning offcuts into a flavorful concentrate run rather than waste.
Flavor and Terpenes
Purple Lemonade Auto leads with a sweet, zesty lemon flavor and a bright citrus top, the profile that gives the strain its name, over a smooth, fruity base. It is a smooth, juicy smoke, and a good cure really brings that sweet-lemon character forward in the jar and on the inhale.
Its terpene profile drives that flavor. Limonene gives the bright, lemony citrus top note, while myrcene brings a sweet, fruity, mellow base and humulene a woody, earthy depth. A touch of geraniol adds a sweet, floral note and a little linalool rounds it out with a soft floral quality. Together they make the sweet, lemon-citrus character this strain is prized for.
Effects and Best Use
With its medium 20-22% THC and indica-leaning 70/30 make-up, Purple Lemonade Auto delivers a bright, balanced experience. It is reported as energetic, euphoric and relaxed, pairing an upbeat, lively lift with a comfortable, settled body, which makes it a versatile strain for daytime or an easy evening. Its medium potency keeps it approachable and easy to dose.
That energetic, euphoric, relaxed profile makes it a cheerful all-rounder, good for staying active and upbeat while enjoying its sweet, lemony flavor. The combination of a fast, high-yielding auto grow, striking purple color and a zesty citrus taste is exactly why this Purple Lemonade autoflower stands out.
Common Problems and Pro Tips
Purple Lemonade Auto is forgiving, but autos reward a careful start. Sow it straight into its final pot to avoid a transplant check, go light on the nutrients while it is young, and do any training early and gently, because once an auto starts flowering it will not recover lost time. Stick to low-stress training only, and only while the plant is still growing.
At a moderate 1.5 m it is easy to manage, so the main jobs are a smooth start, good light and keeping the air moving around its resinous colas. Hold humidity sensible through flower and defoliate a few of the largest fan leaves so light reaches the lower buds. To bring out the deep purple color, let the nights cool a few degrees late in flower.
As a pro tip, make the most of its color and bright flavor: let the late-flower nights run cool for the richest purple, keep the feed modest, and protect the lemon terpenes with a proper plain-water flush and a full three to four week cure. Save the resinous trim for concentrates, and harvest when most trichomes are cloudy with a few amber for a bright, zesty result.
FAQ
Is Purple Lemonade Auto an autoflowering strain?
Yes. Purple Lemonade Auto flowers automatically with age rather than on a change in the light cycle, so you keep it under long days, usually 18/6 or 20/4, from seedling to harvest. It starts flowering on its own a few weeks after sprouting and runs its whole life cycle in about 8 to 10 weeks from seed to harvest, which makes it fast and simple to grow.
Should I transplant Purple Lemonade Auto?
No. Autos grow fast and do not like having their roots disturbed, so start Purple Lemonade Auto straight in its final pot rather than transplanting it. Sow the seed into the container it will finish in, go easy on the feed while it is young, and let it establish without a check. A smooth, uninterrupted start is the single biggest thing you can do for a strong finish.
How do I get Purple Lemonade Auto to turn purple?
The deep purple color comes out most strongly when the nights cool down a little late in flower. Let the temperature drop a few degrees after lights-off in the final couple of weeks and the buds and leaves tend to show richer purple tones. It is largely genetic, so it will color up anyway, but a cool finish brings out the best of it.
What does Purple Lemonade Auto taste like?
It has a sweet, zesty lemon flavor with a bright citrus top over a smooth, fruity base. Limonene drives the lemony citrus, myrcene a sweet, fruity base, humulene a woody depth, and a touch of geraniol a sweet, floral note. A proper three to four week cure really brings that sweet-lemon character forward on the inhale.
How much does Purple Lemonade Auto yield?
It is a high, reliable yielder, giving around 400-500 g/m² indoors and 500-550 g per plant outdoors on its short cycle, which is why it is one of our best high-yielding autos. Give it good light, a big enough final pot and an open canopy to get the most from its resinous, colorful buds.
How long does Purple Lemonade Auto take?
Purple Lemonade Auto runs its whole life cycle in about 8 to 10 weeks from seed to harvest, because it flowers on age rather than on the season. That short, fixed timeline means you can plant it almost any time where it is warm enough, and outdoors you can fit more than one cycle into a long, warm year. There is no light-cycle change to manage.
