Indoor cannabis flowering under LED grow lights with evenly developed colas.

How to Grow Sweety Auto

Sweety Auto is an 80/20 indica-dominant autoflower that crosses Sweet Tooth with Lowryder for automatic flowering. It pairs a sweet, mango, earthy-pine flavor with a happy, relaxed, talkative effect. THC runs from 12 to 15%, placing the Sweety Auto strain in the low to medium range, which makes it smooth and approachable. This guide covers the full grow, from germinating the seeds to the final cure, with the autoflower steps that make it so easy.

It stays compact at 1.5 to 3 ft, runs its whole life cycle in 8 to 10 weeks from seed, and gives a high indoor yield of sweet, frosty buds. If you like these flavors, Blimburn also offers the related Somango x Sweet Auto.

Sweety Auto at a Glance

Before you plant anything, it helps to see the full picture in one place. Here is the quick profile for this autoflowering indica, taken from the strain’s grow data.

Seed typeAutoflowering
GeneticsSweet Tooth x Lowryder
Phenotype80% Indica / 20% Sativa
THC12–15% (low to medium)
Life cycle8–10 weeks from seed
Outdoor harvestAll season
Height1.5 to 3 ft (50 to 100 cm)
Yield indoor1.31–1.64 oz/ft²
Yield outdoorup to 5.29 oz/plant
ClimateTemperate to warm
FlavorsSweet, Mango, Earthy, Pine
EffectsHappy, Relaxed, Talkative
DifficultyBeginner-friendly

These are autoflowering seeds, so they flower on their own without a light-cycle change, and its compact, forgiving nature places it among the best autoflowering seeds for new growers. Its 80% indica makeup also sits it with the indica seeds.

How to Germinate Sweety Auto Seeds

A healthy harvest starts at germination. The paper towel method is hard to beat: fold the Sweety Auto 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 one to five days.

With autoflowers the single most important rule is to sow straight into the final pot. Autos have a short, fixed life cycle and resent being transplanted, which can stunt them and cost you yield. So once the taproot shows, place the seed root-down about 2 cm deep in the pot it will finish in, keep the medium lightly moist, and hold humidity around 65 to 70% while the first true leaves open.

Starter tips

  • Sow directly in the final pot; avoid transplanting an autoflower.
  • Use plain, lightly pH-balanced water (pH 5.5 to 6.5) for the first week.
  • Hold off on nutrients until the second set of serrated leaves appears.

Growing Sweety Auto in the Vegetative Stage

Sweety Auto likes a temperate to warm climate and, as an autoflower, it runs on a generous light schedule from day one. Give it 18 to 20 hours of light a day for its whole life, since there is no need to switch to 12/12 to trigger flowering. Aim for day temperatures of 68 to 80°F and keep veg humidity around 50 to 60%.

The vegetative window is short, so train gently and early. Because topping an auto wastes precious grow time, use low-stress training instead: tie the main stem down and spread the branches to open the canopy, which evens out the light and lifts yield without slowing the plant.

Its compact, day-neutral nature suits a range of US regions, and because it does not depend on the season you can run it almost any time in the warm months:

  • Southern California (Los Angeles, San Diego): the long, warm, dry season lets you fit in more than one autoflower cycle, and low humidity keeps the buds clean.
  • Portland, Oregon: its quick 8 to 10 week life cycle lets you start in late spring and harvest before the damp autumn arrives.
  • Asheville, North Carolina: the warm summers suit it, and its pest resistance helps in a more humid eastern climate, though you still want airflow.

Flowering and Buds of Sweety Auto

As an autoflower, Sweety Auto starts flowering on its own around three to four weeks from seed, with no change to the light schedule needed. From seed to harvest the whole life cycle runs 8 to 10 weeks, so flowering arrives fast and the plant stays short and tidy.

Keep the light at 18 to 20 hours right through bloom, drop humidity to 40 to 45%, and keep airflow moving through the canopy so the compact indica buds finish clean. The buds turn frosty and give off a sweet, fruity, mango nose.

At 12 to 15% THC it leans toward a smooth, approachable potency rather than an overwhelming one, so judge ripeness by the trichomes to catch that sweet aroma at its peak.

Common Problems and Pro Tips

Sweety Auto is forgiving and beginner-friendly, but its autoflower nature means a few things are worth watching.

  • No recovery time: an auto will not wait for you, so avoid harsh handling like topping or transplanting; stick to gentle low-stress training and fix problems quickly, because there is no long veg to bounce back in.
  • Light feeding: autos are small and want less food than photoperiod plants, and this is a low to medium THC, compact plant, so start nutrients low and build up slowly to avoid burning it.
  • Airflow: the compact indica buds still want air moving around them, so keep a fan going and hold humidity below 45% late in flower to protect them.

Expert tip: because the life cycle is fixed and short, pot size and an airy, well-draining medium do a lot of the work; a 3 to 5 gallon fabric pot filled before germination lets the roots run uninterrupted. Letting night temperatures drop to around 59 to 64°F in the final two weeks can bring out color in the sweet buds without stressing the plant.

Aroma, Flavor and Effects

The nose is sweet and inviting: ripe mango and sweet fruit up front over a soft, earthy-pine base, true to its Sweet Tooth parent. It reads candy-sweet and fruity rather than heavy, and it sharpens as the buds cure in the jar.

The flavor follows, sweet mango and fruit with an earthy, piney finish. On the effect side it is happy, relaxed and talkative, an uplifting cerebral buzz that settles into a comfortable body calm from its 80% indica makeup, easygoing thanks to its moderate THC.

Aroma notes

The published profile describes the aroma as sweet, mango, earthy and pine rather than a detailed terpene breakdown, so trust your nose at harvest. That candy-sweet, fruity character is the whole appeal, and a slow, cool cure is exactly what preserves and deepens it, so the jars reward patience with a sweeter, fuller scent.

Nutrient Schedule

Treat the figures below as a starting map, not a rulebook. As an autoflower, Sweety Auto wants a lighter feed than a photoperiod plant, so lean toward the low end and read the plant first: tip burn means back off, while pale, slow growth means it wants a little more. All values use EC.

StageEC
Seedling0.4–0.6
Growth0.8–1.2
Early flower1.2–1.4
Full flower1.4–1.6
Flush0.0–0.4

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

Sweety Auto produces a frosty, fragrant trim, so it is worth keeping. The sugar leaves you take off while manicuring carry plenty of 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 sweet mango-fruit 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 Sweety Auto

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 autoflower the whole cycle lands at 8 to 10 weeks from seed, and because it is day-neutral you can harvest at almost any time of year you started it.

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 sweet mango and fruit 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 sweet, fruity flavor really comes forward, and it is the step most first-time growers rush.

Outdoor cannabis field at sunrise with morning dew on leaves and flowering tops.

Frequently Asked Questions

Is Sweety Auto easy to grow for beginners?

Yes, Sweety Auto is beginner-friendly. As an autoflower it flowers on its own with no light-cycle change, stays compact at 1.5 to 3 ft, is pest-resistant and finishes fast. Sow it straight into its final pot, feed it lightly, and use gentle low-stress training. That simplicity makes it an ideal first grow.

How long does Sweety Auto take to grow?

Sweety Auto runs its full life cycle in 8 to 10 weeks from seed to harvest. It starts flowering on its own around three to four weeks in, with no light change needed. Because it is day-neutral, you can start and finish it at almost any time of year in a warm season, even fitting several cycles in.

Does Sweety Auto need a light change to flower?

No. Sweety Auto is an autoflower, so it flowers automatically with age rather than in response to a light change. Keep it on 18 to 20 hours of light a day for its whole life, from seedling right through harvest. This is what makes autos like this one so simple and forgiving to grow.

How much does Sweety Auto yield?

Sweety Auto is a high yielder for a compact auto. Indoors it gives 1.31 to 1.64 oz/ft² under good light, and outdoors each plant produces up to around 5.29 oz/plant. Sowing straight into the final pot and using low-stress training to open the canopy helps you reach the top of that range.

How strong is Sweety Auto?

Sweety Auto has a low to medium THC level of 12 to 15%. The effect is happy, relaxed and talkative, an uplifting buzz that settles into a comfortable body calm from its 80% indica makeup. That gentle strength makes it a smooth, approachable choice, easy to enjoy without feeling overwhelming.

What does Sweety Auto taste and smell like?

Sweety Auto leads with sweet, ripe mango and fruit over a soft earthy-pine base, true to its Sweet Tooth parent. It is candy-sweet and fruity rather than heavy, and that sweet character deepens and rounds out as the buds cure slowly in the jar, which is where the flavor really develops.

Featured Strains

Trending Now