King's Juice
Cannabis seeds
by Greenhouse Seeds
King's Juice Cannabis Seeds by Greenhouse Seeds
King's Juice is a feminized cannabis seed from Greenhouse Seeds' USA genetics line that delivers heavy yields of citrus-drenched, violet-tinged buds after just 9-10 weeks of flowering. A 60/40 sativa-dominant cross of Mimosa and King's Kush, this hybrid grows with vigour, stretches hard in flower, and rewards patient growers with harvests up to 700g per plant outdoors. Available in packs of 3, 5, or 10 seeds.
Which Pack Size?
| Pack | SKU | Best For |
|---|---|---|
| 3 seeds | CSGH0248 | First run with this strain — test how she performs in your setup before committing |
| 5 seeds | CSGH0249 | A full tent run (SOG or 4-plant setup with one spare) |
| 10 seeds | CSGH0250 | Pheno hunting or multiple cycles — best value per seed |
We'd go with the 5-pack for most indoor growers. You get enough seeds to fill a tent and a backup in case one doesn't pop. The 10-pack makes sense if you want to hunt for that perfect purple pheno — and with King's Juice, the colour variation between plants can be striking.
Why King's Juice Feminized Seeds Deserve a Spot in Your Grow Room
Greenhouse Seeds has been breeding award-winning genetics since the early '90s, and their USA feminized line pulls from some of the most sought-after American cultivars. King's Juice sits right at the intersection of two heavy hitters: Mimosa (known for its explosive citrus terpene profile and uplifting effects) and King's Kush (a dense, resinous indica-leaning strain that stacks weight like nobody's business). The result is a balanced hybrid that inherits the best from both parents — the aromatic punch of Mimosa and the structural density of King's Kush.
What makes King's Juice stand out from other sativa-dominant hybrids in the Greenhouse Seeds catalogue? Three things. First, the aroma. After a proper dry and cure, the terpene profile shifts from fresh florals into a rich, ripe citrus with earthy undertones — the kind of smell that fills a room the moment you crack a jar. Second, the bag appeal. Those reddish-violet hues that develop during late flowering aren't just pretty; they're a sign of healthy anthocyanin production, and they make your harvest look like something from a magazine cover. Third, the yield. Up to 700g per plant outdoors is serious weight for a sativa-dominant strain, and indoor growers can expect thick, sticky colas that justify every watt you throw at them.
The one thing to watch: this strain stretches. A lot. We're talking plants that can double in height once you flip to 12/12. If you're growing in a 1.2m tent, you'll want to flip early or train aggressively. More on that below.
King's Juice Seed Specifications
| Specification | Detail |
|---|---|
| Seed Bank | Greenhouse Seeds |
| Seed Type | Feminized |
| Genetics Line | USA Feminized |
| Lineage | Mimosa x King's Kush |
| Sativa / Indica Ratio | 60% Sativa / 40% Indica |
| Flowering Time | 9-10 weeks |
| Outdoor Yield | Up to 700g per plant |
| Growth Pattern | Tall, strong apical dominance (pine-tree structure) |
| Stretch in Flower | Significant — can double in height |
| Bud Characteristics | Thick, sticky, reddish-violet hues at maturity |
| Aroma Profile | Ripe citrus, fresh florals, earthy undertones |
| Available Packs | 3, 5, or 10 seeds |
Growing King's Juice indoors? The stretch on this strain means you'll want proper light coverage across a taller canopy. A reliable grow tent and a good carbon filter are non-negotiable — the citrus terpenes on this one are loud. Pair your seeds with a complete grow kit to save yourself the headache of sourcing components separately. If you're training to control height, pick up some plant ties and soft wire while you're at it.
Growing King's Juice Cannabis Seeds: What to Expect
We've seen a lot of Greenhouse Seeds genetics come through over the years, and King's Juice is one of those strains that makes the growing process genuinely enjoyable. From germination to harvest, here's what you're working with.
Germination is fast. In optimal conditions — 20-25°C, consistent moisture, no direct light — you'll see taproots within 48-72 hours and the first true leaves developing within roughly two weeks. These seedlings don't hang about. During veg, King's Juice grows tall with thick foliage and a pronounced apical dominance, meaning one central cola shoots upward while side branches fill in below. The structure looks almost like a Christmas tree — dense, bushy, and hungry for light.
Here's where the honest limitation comes in: the flowering stretch is no joke. When you flip to 12/12, King's Juice can double in size. If you're in a 120cm tent and your plant is already at 60cm when you flip, you're going to run out of headroom fast. The fix is simple — either flip early (at 30-40cm) or use LST (low-stress training) and topping during veg to keep the canopy flat. Outdoor growers have it easier; just give her space and substrate, and she'll reward you with those 700g harvests Greenhouse Seeds advertises.
Flowering takes 9-10 weeks, and the last 2-3 weeks are where the magic happens. Buds fatten up considerably, trichome production ramps up, and those beautiful reddish-violet hues start creeping in across the calyxes and sugar leaves. The smell during late flower is fresh and floral — pleasant, but not yet the full citrus bomb you'll get after drying.
How to Grow King's Juice Feminized Seeds
- Germinate your King's Juice seeds using the paper towel method or directly in a starter plug. Keep temperatures between 20-25°C and maintain consistent moisture without waterlogging. Expect taproots within 48-72 hours.
- Transplant seedlings into their first pot (0.5-1L) once the taproot is 1-2cm long. Place under 18/6 light at low intensity — 200-300 PPFD is plenty for the first week.
- During the vegetative phase, transplant into your final container (11-20L for indoor, 30-50L+ for outdoor). King's Juice develops strong apical dominance, so top the main stem at the 4th or 5th node if you want a bushier, more manageable canopy.
- Apply LST (low-stress training) by gently bending and tying down branches to create an even canopy. This is critical for King's Juice — without training, the stretch in flower will push your main cola into the light fixture.
- Flip to 12/12 when plants reach 30-50% of your available vertical space. Remember: King's Juice can double in height during the first 2-3 weeks of flower.
- During weeks 3-6 of flowering, increase phosphorus and potassium in your feed schedule. This is when buds start stacking weight and trichome production kicks into gear.
- From week 7 onwards, monitor trichomes with a jeweller's loupe. Harvest when 70-80% of trichomes are milky with 10-20% amber. The violet hues develop in the final weeks — don't rush it.
- Dry in a dark room at 18-20°C and 55-60% humidity for 10-14 days. Cure in sealed glass jars, burping daily for the first two weeks. The citrus terpene profile becomes dramatically more pronounced after 3-4 weeks of curing.
Aroma and Flavour: What King's Juice Smells Like
This is where King's Juice really earns its name. Fresh off the plant, the buds smell floral — almost like walking past a flower shop on a warm day. There's a sweetness underneath, but it's subtle. The citrus hasn't fully developed yet.
After 10-14 days of drying and a few weeks of curing, everything changes. The floral notes settle into the background, and a rich, ripe citrus takes centre stage. Think fresh-squeezed orange juice with a hint of grapefruit peel — that's the Mimosa parent doing its thing. Underneath, there's an earthy, almost musky quality from the King's Kush side that keeps the profile from being one-dimensional. Crack a jar after a month of curing and the smell is genuinely impressive. It's one of those strains where the aroma alone makes the grow worthwhile.
Compared to something like Royal Queen Seeds' Mimosa, which leans harder into pure citrus, King's Juice has more depth. The Kush influence adds body and earthiness that rounds out the profile. If you're after a strain that smells as good as it looks, this is a strong pick.
Frequently Asked Questions
How tall does King's Juice grow indoors?
King's Juice develops strong apical dominance during veg and can double in height during flowering. Without training, expect final heights of 120-180cm indoors. Top and train during veg to keep plants under 100cm — flip to 12/12 when they're at 30-50% of your available headroom.
What is the flowering time for King's Juice feminized seeds?
King's Juice flowers in approximately 9-10 weeks from the flip to 12/12. The violet colouration and peak trichome development happen in the final 2-3 weeks, so resist the urge to chop early. Use a loupe to check trichome ripeness.
How much does King's Juice yield outdoors?
Greenhouse Seeds lists outdoor yields of up to 700g per plant. Hitting that number requires ample root space (30L+ containers or direct soil), full sun exposure, and a long enough growing season. In northern Europe, harvests typically land in mid to late October.
Is King's Juice suitable for beginners?
King's Juice is straightforward to grow — fast germination, vigorous veg growth, and good resistance to common issues. The main challenge is managing the flowering stretch. If you're new to growing, use LST and top early. The 3-seed pack lets you test the strain without a big commitment.
What genetics are in King's Juice?
King's Juice is a cross between Mimosa and King's Kush, both from Greenhouse Seeds' USA feminized line. Mimosa contributes the citrus terpene profile and sativa-leaning growth, while King's Kush brings density, resin production, and indica structure. The ratio is 60% sativa, 40% indica.
Why do King's Juice buds turn purple?
The reddish-violet hues in King's Juice come from anthocyanin pigments, which are triggered by cooler nighttime temperatures during late flowering (below 18°C). Not every pheno will colour up equally — some lean more green, others go full purple. It's genetic variation, not a deficiency.
Does King's Juice smell strongly during flowering?
Yes. The floral and citrus terpenes become increasingly pungent from week 5 of flowering onwards. If you're growing indoors, a carbon filter is essential — without one, your entire flat will smell like a citrus grove. The scent intensifies further after drying and curing.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.