Lemongrass Auto is Humboldt Seed Company’s lemon-drenched autoflower, a strain whose name came easily once the breeder smelled its juicy terpenes. It pairs 25-30% THC with a lemon drops, sour and fuel profile, wrapped in a big, vigorous indica-dominant plant that runs from seed to harvest in 70-90 days.
The breeder lists the auto parentage as Lemon Kush x Family Jewels Auto and the generation as Bx6, a sign that the line has been worked repeatedly for consistency. The balance sits at 70% indica / 30% sativa, yet the effect is described as uplifting rather than heavy.
Lemongrass has a reputation for size. Plants show real hybrid vigor and grow larger than many growers expect from an autoflower, while disease, mildew and mold resistance are rated high. That combination makes it a forgiving option for both hobby gardens and production-minded farms.
Harvest is just as friendly. Humboldt Seed Company notes that the flower structure suits both machine and hand trimming, so the long hours at the trim table get a little shorter. And, as the breeder jokes, once you grow it out you will want to thai one on.
Lineage and Breeding of Lemongrass Auto
Lemon Kush brings the bright citrus and the kush backbone, while Family Jewels Auto contributes the autoflowering trait, vigor and some of the fuel underneath. Humboldt Seed Company has carried the cross through six backcross generations, tightening the lemon expression and the plant’s growth pattern along the way.
The breeder also offers a feminized photoperiod Lemongrass, but this auto version is built for speed and simplicity. It keeps the same lemon-forward identity while removing the need to manage light cycles, which makes it easy to slot into a staggered harvest schedule.
Aroma, Flavor and Effect
The jar opens with sweet, candied lemon drops, quickly joined by a mouth-puckering sour note and a layer of fuel that keeps the profile from getting too sugary. On the palate the lemon stays front and center, with the gas showing up most clearly on the exhale.
The effect is listed as uplifting. Even with indica-leaning genetics, Lemongrass Auto tends to brighten the mood and keep things moving, which suits daytime projects, outdoor activities and social sessions. With THC at 25-30%, the breeder rates the potency as extreme, so dosing deserves respect.
That pairing of a bright, citrusy flavor with a strong but upbeat effect is what gives this auto broad appeal. It feels lively without losing the substance that experienced consumers look for.
Growing Lemongrass Auto Indoors and Outdoors
As an autoflower, Lemongrass Auto blooms without any change in photoperiod. Indoors, run 18/6 or 20/4 from start to finish and expect harvest in 70-90 days from seed. Because the plants are large for an auto, give them a bit more headroom and container volume than a typical compact strain.
Sow directly into final pots of 5 gallons (19 L) or more to take advantage of its vigor, and use LST early to spread the canopy. The breeder’s high disease, mildew and mold resistance ratings help, but steady airflow and moderate humidity in late flower are still sound practice.
Outdoors, this is a strong candidate for farms that want to hit the season running. Plant after the last frost for a summer harvest and, in warmer regions, follow with a second round. Its trim-friendly structure makes processing large harvests simpler, whether by hand or by machine.
Lemongrass Auto Characteristics
| Strain type | Autoflowering feminized |
| Genetics | Lemon Kush x Family Jewels Auto, Bx6 |
| Indica/Sativa | 70% Indica / 30% Sativa |
| THC | 25-30% |
| Effect | Uplifting |
| Flavor/Aroma | Lemon drops, sour, fuel |
| Flowering time / Seed to harvest | 70-90 days from seed |
| Yield | High; large plants with hybrid vigor |
| Characteristics | High disease, mildew and mold resistance; trim-friendly flower structure |
| Best cultivation technique | Large final pots, early LST, 18/6 or 20/4 light |
FAQ
Is Lemongrass Auto indica or sativa?
It is indica dominant, listed at 70% indica and 30% sativa, although the effect is described as uplifting.
How long does Lemongrass Auto take from seed to harvest?
Humboldt Seed Company lists 70-90 days from seed to harvest, with no light switch needed.
How potent is Lemongrass Auto?
The breeder lists THC at 25-30% and calls the potency extreme, so moderate dosing is wise.
What does Lemongrass Auto taste like?
Sweet lemon drops up front, a sour tang in the middle and a fuel note on the finish.
Is Lemongrass Auto resistant to mold?
Yes. The breeder rates its disease, mildew and mold resistance as high, which makes it a forgiving choice in humid conditions.
Is Lemongrass Auto easy to trim?
Its flower structure is described as well suited to both hand and machine trimming, which speeds up processing.
