How to Grow Star Killer
Star Killer is a 70/30 indica-dominant hybrid that crosses Skywalker OG with Rare Dankness #2, and it is a decorated one, taking a Cannabis Cup in 2014. It pairs an earthy, lemon-pine OG flavor with a happy, relaxed, talkative effect. THC runs from 23 to 29%, placing the Star Killer strain in the medium to high range, so it is seriously potent. This guide covers the full grow, from germinating the feminized seeds to the final cure.
It grows to around 4.92 ft, finishes flowering in 8 to 10 weeks and trades heavy indoor weight for top-shelf, resin-rich quality. If you like these genetics, Blimburn also offers the Star Killer Regular and the cross Star Killer x Do-Si-Dos.
Recommended Strains
Star Killer
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THC | 23% - 29% (High) |
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Type | Feminized |
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Yield | Medium |
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Phenotype | 70% Indica / 30% Sativa |
Star Killer Fast Version
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THC | 26% - 28% (High) |
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Type | Fast Flowering |
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Yield | Medium |
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Phenotype | 85% Indica / 15% Sativa |
Star Killer at a Glance
Before you plant anything, it helps to see the full picture in one place. Here is the quick profile for this award-winning feminized OG indica, taken straight from the strain’s grow data.
| Seed type | Feminized |
|---|---|
| Genetics | Skywalker OG x Rare Dankness #2 |
| Awards | Cannabis Cup 2014 |
| Phenotype | 70% Indica / 30% Sativa |
| THC | 23–29% (medium to high) |
| Flowering time | 8–10 weeks |
| Outdoor harvest | October |
| Height | up to 4.92 ft (1.5 m) |
| Yield indoor | 1.15–1.31 oz/ft² (modest) |
| Yield outdoor | up to 24.69 oz/plant |
| Climate | Temperate |
| Dominant terpenes | Myrcene, Pinene, Caryophyllene, Humulene, Linalool, Carene, and more |
| Flavors | Earthy, Lemon, Pine |
| Effects | Happy, Relaxed, Talkative |
| Difficulty | Beginner-friendly |
These are feminized seeds, so every plant you grow will flower, and its 70% indica makeup gives a deep OG body with a happy mental lift. As a Cannabis Cup winner it also sits among the award-winning cannabis seeds.
Promos & Deals
How to Germinate Star Killer Seeds
A healthy harvest starts at germination. The paper towel method is hard to beat: fold the Star Killer 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.
Once the root is a few millimetres long, move each seed into its starter pot with the root pointing down and cover it with about 2 cm of soil. Keep the medium lightly moist, not soaked, and hold humidity around 65 to 70% while the first true leaves open. Because these are feminized seeds, you can skip sorting out males later and give every sprout your full attention.
Starter tips
- Use plain, lightly pH-balanced water (pH 5.5 to 6.5) for the first week.
- Give seedlings gentle light, not a full-power lamp pressed overhead.
- Hold off on nutrients until the second set of serrated leaves appears.
Growing Star Killer in the Vegetative Stage
Star Killer likes a temperate climate and, like most OG Kush descendants, it prefers drier air. Aim for day temperatures of 68 to 80°F and keep veg humidity in the 50 to 60% band. An airy substrate with perlite, peat or coco coir holds moisture without drowning the roots.
Its temperate, dry-loving nature suits a range of US regions:
- Southern California: the warm, dry Mediterranean season is a natural home for this OG and keeps the resinous buds clean to an October harvest.
- Northern California (Emerald Triangle): the long, mild season works well; just watch for autumn damp on the dense OG buds.
- Dry inland West (Arizona, Nevada): the low humidity suits it; shade it from the harshest midday heat and keep water steady.
At around 4.92 ft this is a moderate OG plant. Because its indoor yield is modest, training pays off: top it once it has five or six nodes and use low-stress training to spread an even canopy so every bud site gets light and you lift the harvest as much as possible.
Flowering and Buds of Star Killer
Once you switch to a 12/12 light cycle, Star Killer finishes in 8 to 10 weeks. Expect some stretch early on, then it builds dense, chunky, resin-caked buds with an earthy, lemon-pine OG aroma, the quality that won it its cup.
Drop humidity to 40 to 45% during flower and keep airflow moving through the canopy, which matters because the dense OG buds hold moisture. Support the heavier branches as the colas fatten, and outdoors plan for an October harvest in a dry spell.
At 23 to 29% THC it frosts over with a very heavy resin layer; this is a quality-over-quantity plant indoors, so judge ripeness by the trichomes rather than the calendar.
Common Problems and Pro Tips
Star Killer is beginner-friendly but, like any OG, it has a few quirks worth knowing.
- Modest indoor yield: this OG is prized for quality and potency, not bulk, giving around 1.15 to 1.31 oz/ft² indoors, so lean on training and an even canopy, and grow it outdoors if sheer weight is your goal.
- Humidity and mould: OG descendants dislike damp air and the dense buds trap moisture, so keep humidity down, run airflow and defoliate to open the canopy late in flower.
- Calcium and magnesium: OG genetics are prone to Cal-Mag deficiency and rusty leaf spots, so a light Cal-Mag supplement keeps them clean; check undersides weekly for spider mites.
Expert tip: because indoor weight is modest, treat this as a connoisseur plant and chase resin and aroma rather than bulk. Those dense, extremely frosty OG buds make outstanding hash, so save every scrap of trim, and a touch of cool, dry air late in flower sharpens the earthy-lemon-pine OG nose. Given the high potency, start consumption slow.
Aroma, Flavor and Effects
The nose is classic OG: deep, earthy and herbal with a sharp lemon-citrus lift and a fresh pine edge. It reads pungent and savory rather than sweet, true to its Skywalker OG side, and it sharpens as the buds cure in the jar.
The flavor follows, earthy and piney with that bright lemon bite. On the effect side it is happy, relaxed and talkative, an easygoing, sociable lift with a comfortable OG body ease from its 70% indica makeup, though at 23 to 29% THC it is seriously strong, so go slow.
Terpene profile
This is a deep, classic OG profile. Myrcene grounds it with a ripe, earthy depth; Pinene brings the sharp fresh-pine note; and Caryophyllene adds a warm, peppery spice. Humulene layers in an earthy, woody edge, Linalool a soft floral note, and Carene a crisp, citrus-pine lift, with caryophyllene oxide and more rounding out the blend. Together they explain that pungent earthy-lemon-pine OG signature.
Nutrient Schedule
Treat the figures below as a starting map, not a rulebook. Star Killer takes a moderate feed but, like most OGs, can burn if pushed, 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.
| Stage | EC |
|---|---|
| Seedling | 0.4–0.6 |
| Growth | 0.8–1.2 |
| Early flower | 1.2–1.4 |
| Full flower | 1.4–1.6 |
| Flush | 0.0–0.4 |
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
Star Killer lays down a very heavy, pungent OG resin layer, so its trim is pure gold for extracts, all the more since indoor flower weight is modest. The frosty sugar leaves you take off while manicuring are packed with trichomes and are ideal for Ice Water Hash, where cold water and agitation separate the resin heads into a clean, solventless concentrate. Pressing that hash into rosin keeps the earthy-lemon-pine OG flavor intact, and OG genetics are a classic choice for top-shelf hash, 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 Star Killer
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. Outdoor plants usually reach that point in October, while indoor runs land at the end of the 8 to 10 week flowering window.
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 earthy, lemon and pine 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 classic OG pungency really comes forward, and it is the step most first-time growers rush.
Frequently Asked Questions
Is Star Killer easy to grow for beginners?
Yes, Star Killer is beginner-friendly, staying manageable at around 4.92 ft. The OG quirks to know are that it dislikes humidity, likes a light Cal-Mag feed, and gives a modest indoor yield, rewarding quality over bulk. Keep humidity down and feed lightly and this award-winning OG is a forgiving, rewarding grow.
How long does Star Killer take to flower?
Star Killer flowers in 8 to 10 weeks indoors once you switch to a 12/12 light cycle. Outdoors it is usually ready in October. Expect some stretch in the first weeks of flower, so train the canopy before you flip the lights to keep it even and make the most of its modest indoor yield.
How much does Star Killer yield?
Star Killer gives a modest indoor yield of around 1.15 to 1.31 oz/ft², true to its quality-focused OG genetics. Outdoors it is far more generous, up to 24.69 oz/plant. Training to an even canopy so light reaches every bud site is the best way to lift the indoor harvest as much as possible.
How strong is Star Killer?
Star Killer is very potent, with a medium to high THC level of 23 to 29%. The effect is happy, relaxed and talkative, an easygoing, sociable lift with a comfortable OG body ease from its 70% indica makeup. Because of that strength, start with a small amount if you are new to high-THC strains.
What does Star Killer taste and smell like?
Star Killer is classic OG: deep, earthy and herbal with a sharp lemon-citrus lift and a fresh pine edge, driven by myrcene, pinene and caryophyllene. It is pungent and savory rather than sweet, and that earthy-lemon-pine character sharpens as the buds cure slowly in the jar.
Why is Star Killer an award winner?
Star Killer took a Cannabis Cup in 2014, recognition of its elite Skywalker OG and Rare Dankness pedigree, pungent earthy-lemon-pine aroma and extremely heavy resin. It remains a benchmark OG that growers return to for its top-shelf quality and potency rather than sheer indoor weight.
