XJ-13
XJ 13 feminized seeds bring together classic Jack Herer and G13 Haze genetics in a citrus and pine heavy cultivar that growers keep coming back to. Expect tall, energetic plants with chunky lime green buds, loud aroma, and a smooth lemon pine flavor that really pops in the jar. A great pick if you like upbeat, sativa leaning cultivars that still stay manageable in a home grow.
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THC levels up to 23%
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50% Indica, 50% Sativa
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Energetic, Euphoric, Relaxed
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Total time from flowering stage to harvest: 55-65 days
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Growing experience level: Intermediate
XJ-13: A Dutch Legend
XJ-13 looks different in certain lights. In direct light the plants feature thick, dense buds so covered in resiny goodness that they appear white to the naked eye. There are orange hairs creeping out of the flower as if they are reaching for the sky. When harvested the nuggs have a purple hue intertwined with green and amber. When broken apart the buds smell like fresh oranges. XJ-13 has the hardware to match its legendary lineage. In 2012 it won the bronze for Best Sativa at the High Times Cannabis Cup. In 2014 it won gold for best Concentrate proving that it is a fan-favorite among cannabis enthusiasts. A solid choice for intermediate growers, this strain takes a steady hand and some patience to bring to fruition.
Growing Tips for Our Seeds
Preferring a warm, sunny climate, XJ-13 performs well in a number of different environments. Choosing an outdoor location with plenty of sunlight and well-drained soil you are going to want to have control over the climate as much as possible to get your seeds to harvest. These plants grow tall and bushy so take that into consideration when carving out space in your garden or grow room. Successfully growing this strain will present you with higher than average yields of a high THC content bud you will absolutely love!
Dial in Your Growing Conditions
- Indoor or Outdoor: XJ-13 plants grow well indoors and outdoors in the right environment. The ideal temperature for these plants is between 70-80 degrees fahrenheit. During the vegetative stage, providing 18-24 hours of light per day is perfect. It’s important to adjust the light schedule to 12 hours of light and 12 hours of darkness each day during the flowering stage.
- Moisture control: Humidity plays an important role in the development of XJ-13 plants. During the early stages, humidity levels between 60-70% are beneficial. As they move into the vegetative stage, the humidity levels can be reduced to around 50-60%. During the flowering stage, lower the humidity further, to around 40-50%, to prevent mold and mildew.
- Training Techniques: Low-stress training and topping can really help this strain reach its peak. These methods will optimize bud growth and make sure that ample light reaches every level of the plant from top to bottom.
The Germination Game Plan
Before you even plant your XJ-13 female cannabis plants, you will first need to germinate these seeds. To do so, refer to our free germination guide, knowing that they are backed by our impressive 90% germination guarantee.
Yields, Flowering Time and Harvest
- Flowering Time: With indoor grows you can expect the XJ-13 strain to harvest after a flowering stage of 55-65 days. If growing outdoors, expect to harvest in early October. Pick the buds at their peak ripeness. When the trichomes have turned from clear to a milky white or amber color and cut down the branches to begin the drying process
- Yields: While Indoor yields are around 500 grams per square meter and outdoor grows typically produce up to 600 grams per plant. Whether growing indoors or outdoors your yields will be great with large, dense buds.
Dominant Terpenes in XJ-13: Well-Balanced
The Xj-13 terpene profile is directly responsible for how the plant smells, tastes and the strong effects it has on its users. The most dominant terpene in this strain is terpinolene, while ocimene and caryophyllene are the secondary terpenes.
- Terpinolene: Most Dominant – Dominant in about 1 in 10 cannabis strains it features a woody smell with floral and citrus notes.
- Ocimene: Sweet and Herbaceous – Sweet, herbal smell. A monoterpene found in fruits and plants like cannabis.
- Caryophyllene: Secondary Terpene – Promotes relaxation and reduces anxiety in cannabis.
Dominant Cannabinoids in XJ-13:
Cannabinoids play an important role in XJ-13 seeds and are generally a huge part of most cannabis strains. That euphoric, energetic and relaxed feeling you get when using the XJ-13 strain is due to its dominant cannabinoids. Each cannabinoid does something different to the user.
- THC: The Main Character – THC is the most dominant cannabinoid on the molecular level of this strain. The crystalline compound tetrahydrocannabinol is the main ingredient of cannabis. Topping out at a massive 23%, the THC in the 50/50 hybrid strain is responsible for the relaxed and euphoric feeling you get with XJ-13.
- CBD: Very Minimal Amounts – While the CBD levels in XJ-13 are less than 1% the cannabinoid is still present.
Characteristics
Strain Genetics |
Jack Herer, G13 Haze |
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Blend |
50% Indica, 50% Sativa |
Plant Sex |
Feminized |
Strain Type |
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Flowering Time |
55-65 days |
Flowering Type |
Photoperiod |
THC Content |
23% |
CBD Level |
Low, Moderate |
Effects |
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Indoor Yield |
Up to 500g per m2 |
Outdoor Yield |
Up to 600g per plant |
Flavor |
Citrus, Pine, Sweet |
Growing Difficulty |
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Where to Grow |
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Seed Type |
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Plant Height |
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Yield Levels |
High Yield |
FAQ for XJ-13
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Reviews
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TaraN39 Verified Buyer
Tracking flowering duration against initial expectations, this specimen ran toward the longer end of the published range, a variable worth flagging for scheduling purposes even though day-to-day care requirements remained moderate throughout. Structural development produced a vivid green plant of medium height, requiring no significant corrective training. Bud density at harvest was moderate — sufficient for structural integrity while still breaking apart easily during processing. Aroma progression was gradual, building from minimal presence early in flower to a pronounced citrus-pine profile with skunky pungency by the final two weeks. Cured aroma showed clear improvement over harvest-fresh material, with pungent notes softening into a sweeter, more rounded character. Reported effects were consistent with a creative, energetic, uplifting combination.
null95 Verified Buyer
Smell had main character energy by week seven. Worth it.
dustyVanilla69 Verified Buyer
Pungent up front, sweeter after cure.
Nina_N Verified Buyer
The smell alone made this grow worth it, citrus and lime up front with pine and skunky pungency underneath, building louder every week until curing rounded it all into something sweeter.
Isabella R.20 Verified Buyer
Bud texture at harvest — specifically the ease of manual separation — proved to be a notable positive attribute of this specimen relative to denser strains processed in the same session. Aroma complexity was also notable: citrus notes leaned toward orange rather than lemon in this batch, layered with pine and an underlying skunky pungency that intensified substantially through the final two weeks of flower, necessitating active odor control measures. Structural growth was even, producing a vivid green plant of moderate height with proportional yield. Cured aroma improved measurably over harvest-fresh material, softening pungent notes while preserving citrus brightness. Reported effects were consistent with a creative, energetic, uplifting profile, with a gradual transition toward relaxation over the course of a session.
Monica62 Verified Buyer
Cure made a real difference here, smoothing the sharper pungent notes into something sweeter while keeping the citrus brightness intact. Structure stayed vivid green and medium height throughout.
V.M Verified Buyer
No drama except the calendar. Worth the extra patience.
lucas-c Verified Buyer
Moderate difficulty kept things interesting without being overwhelming. Medium height and yield, vivid green color, and an aroma that built steadily into citrus-pine-skunk territory by late flower.
DrewWoods54 Verified Buyer
Vivid green, easy trim, citrus smell.
Riley C. Verified Buyer
Moderate grow, gorgeous result, would repeat.