Lemongrass is a Humboldt Seed Company original that earned its name the moment the first plants hit the drying room. Juicy terpenes pour out a loud lemon-drop sweetness backed by sour citrus and fuel, and the breeder rates potency at 25-30% THC with an uplifting effect.
This feminized cross is indica dominant on paper, 70% Indica and 30% Sativa, yet the plants are anything but compact. They grow huge, show obvious hybrid vigor, and pack on flower without demanding constant attention. That mix of size and simplicity is exactly why the breeder pitches it to California farms that want a dependable start to the season.
Disease, mildew, and mold resistance is rated high, and the flower structure is tidy enough for either machine or hand trimming, which makes Lemongrass a practical choice for both hobby and production gardens.
Lineage and Breeding of Lemongrass
Humboldt Seed Company lists the parents as Humboldt Gelato Bx3 x Lemon Kush. Humboldt Gelato adds dense structure, bag appeal, and dessert-grade resin, while Lemon Kush brings bright citrus and the classic Kush backbone.
The breeder has worked this line deep, and current seed lots are listed at Bx6. That many backcross generations translate into uniform plants and a consistent lemon profile from seed to seed, a hallmark of the breeder’s stabilized releases.
Aroma, Flavor, and Effect
The aroma is pure candy-store citrus: lemon drops, sour zest, and a ribbon of fuel underneath. Squeeze a bud and the lemon jumps out like peel snapped over a glass. On the palate, the sweetness rounds off the sour edge, while the fuel note lingers on the exhale and keeps the profile from tipping into soda territory.
Despite the indica-heavy ratio, the breeder describes the effect as uplifting and the potency as extreme. Expect a bright, mood-lifting head high with a relaxed body underneath, strong enough that a couple of pulls go a long way.
Growing Lemongrass Indoors and Outdoors
Indoors, Lemongrass needs space. Top early, train the branches out with LST, and fill a SCROG screen to keep its vigorous growth under control. Flowering takes about 50 days, a short run for a plant of this size, and the dense, uniform flower sites make trimming quick.
Outdoors, the breeder lists harvest between September 20 and October 5, ahead of the worst fall weather in most of Northern California. High mold and mildew resistance adds another layer of safety. Give the plants big containers or open ground, a full-sun spot, and steady feeding, and they reward the effort with heavy, lemon-scented colas.
Lemongrass Characteristics
| Strain type | Feminized photoperiod |
| Genetics | Humboldt Gelato Bx3 x Lemon Kush, Bx6 |
| Indica/Sativa | 70% Indica / 30% Sativa |
| THC | 25-30% |
| Effect | Uplifting, extreme potency |
| Flavor/Aroma | Lemon drops, sour, fuel |
| Flowering time | 50 days |
| Outdoor harvest | September 20 – October 5 |
| Yield | High; huge plants with hybrid vigor |
| Characteristics | High disease, mildew, and mold resistance; trims easily by hand or machine |
| Best cultivation technique | Topping, LST, and SCROG |
FAQ
Is Lemongrass Indica or Sativa?
Lemongrass is indica dominant at 70% Indica and 30% Sativa, though the breeder describes its effect as uplifting.
How much THC does Lemongrass have?
Humboldt Seed Company lists THC at 25-30% and calls the potency extreme.
What are the parents of Lemongrass?
It comes from Humboldt Gelato Bx3 x Lemon Kush and has been backcrossed to Bx6 for consistency.
What does Lemongrass taste like?
Lemon drops and sour citrus lead, with a fuel note underneath that lingers on the exhale.
How long does Lemongrass take to flower?
About 50 days indoors. Outdoors, the breeder lists harvest from September 20 to October 5.
Is Lemongrass a good outdoor strain?
Yes. The plants are large and vigorous, with high resistance to disease, mildew, and mold, which suits outdoor and farm-scale grows.
