Feminized seeds
by Azarius
Super Silver Haze seeds are feminized, photoperiod cannabis seeds that produce a sativa-dominant hybrid carrying 22–24% THC. This is a three-way cross of Skunk, Northern Lights, and Haze — three of the most influential genetics in cannabis breeding — rolled into a single plant that hits hard on the cerebral side without leaving you glued to the sofa. The flavour runs sharp citrus up front, herbal through the middle, and finishes with that unmistakable skunk funk. We've stocked this strain since the early days, and it's still one of the seeds customers come back for year after year.
Super Silver Haze seeds ship in packs of 1, 3, 5, or 10. The right size depends on your grow space, your confidence level, and how many phenotypes you want to hunt through.
| Pack Size | Best For | Notes |
|---|---|---|
| 1 seed | Test runs, single-plant grows | Try the genetics before committing. Good if you have one open slot in a tent. |
| 3 seeds | Small personal grows | Enough to fill a 1m x 1m canopy with training. Leaves room for one dud. |
| 5 seeds | Pheno hunting, medium setups | Find the best expression of the genetics. Our pick for most growers. |
| 10 seeds | Serious runs, mother selection | Best value per seed. Ideal if you want to select a keeper and clone from her. |
If you're growing Super Silver Haze for the first time, we'd go with the 5-pack. You get enough plants to see the variation in the genetics — some will lean more Haze, some more Skunk — and you can pick your favourite for future runs. The single seed is there for growers who already know they like the strain and just need to fill a gap.
Super Silver Haze seeds carry genetics from three parent strains that each bring something specific to the table. This isn't a random cross — it's a deliberate combination that's been refined over decades.
| Parent Strain | Contribution |
|---|---|
| Skunk | Vigour, fast vegetative growth, structural stability |
| Northern Lights | Resin production, compact bud density, resilience |
| Haze | Cerebral lift, extended flowering, complex terpene profile |
The Skunk genetics keep the plant manageable — without it, pure Haze crosses can stretch to unworkable heights indoors. Northern Lights adds the frost. You'll see trichome coverage start building by week 5 of flower, and by week 8 the buds look like they've been dipped in sugar. The Haze parent is what gives Super Silver Haze its character: that soaring, creative, get-things-done effect that sativa growers chase.
From behind the counter at Azarius — we've been here since 1999 — this Skunk Northern Lights Haze cross is the strain we point to when someone asks "what's the best sativa that actually finishes on time?" Pure Haze can take 14 weeks or more. Super Silver Haze wraps up in 8–10 weeks. That's a meaningful difference when you're paying for electricity. According to the EMCDDA's cannabis monograph, sativa-dominant cultivars with Haze lineage are among the most widely cultivated in European indoor settings, and the shorter flowering window of stabilised hybrids like Super Silver Haze is a key reason why.
Super Silver Haze seeds germinate reliably within 48–72 hours at 22–25°C and push into vegetative growth with the vigour you'd expect from Skunk-influenced genetics. These are feminized seeds, so every plant you pop will flower — no males to identify and cull at week 3.
Every strain has trade-offs, and Super Silver Haze has a couple you should know about before you commit a full tent to it.
The stretch is real. If you don't manage height during veg, you'll run out of vertical space indoors. We've seen growers lose yields because their colas grew into the light during the flowering stretch. Top at least once during veg, and consider a SCROG net if you're in a tent under 180cm tall.
Humidity sensitivity in late flower. Those dense, resinous buds can trap moisture. In the final 2–3 weeks of flowering, keep relative humidity below 50% — ideally closer to 40%. Without good airflow, you're rolling the dice on bud rot, and there's nothing worse than losing a 9-week plant to mould in the home stretch.
Feeding: Super Silver Haze is a hungry plant. The sativa genetics and extended flowering period mean she'll eat through nutrients faster than a compact indica. Watch for yellowing lower leaves mid-flower — it's a sign she wants more nitrogen than you'd typically give during bloom. If you're looking to order nutrients alongside your seeds, a CalMag supplement and a bloom-phase feed are the essentials for this strain.
The dominant terpene profile in Super Silver Haze is citrus-forward with herbal and skunk undertones. Crack open a cured jar and the first thing that hits you is sharp lemon zest with a grapefruit edge. Underneath that, there's an herbal, slightly spicy layer that comes from the Haze genetics. The skunk base rounds it out on the exhale: earthy, pungent, unmistakable. It's a complex profile that changes as you break the buds apart.
The effect is where this strain earns its reputation. At 22–24% THC, the onset is fast and cerebral. Users widely report an uplifted mood, a sense of mental clarity, and a motivated, creative headspace. It's the kind of strain that pairs with a project — writing, painting, cleaning the entire flat at 2pm on a Saturday. The energy is real, not jittery. You stay focused without the foggy comedown that heavier strains deliver.
According to the Beckley Foundation's research into cannabis and creativity, sativa-dominant cultivars with high-THC profiles are associated with divergent thinking patterns — the type of open, exploratory cognition that users describe as feeling "creative" or "inspired." The terpene profile matters too: limonene-rich strains like Super Silver Haze are frequently linked to uplifted, energised subjective experiences.
One thing we've heard consistently from customers over the years: Super Silver Haze is not a nighttime strain. If you smoke this at 10pm, expect to be reorganising your bookshelf at midnight. Save it for daytime use and pair it with something more indica-leaning for evenings.
Super Silver Haze sits between Amnesia Haze and Jack Herer in terms of intensity and flowering time. If you're weighing up sativa options, here's how it compares to two other popular choices we carry.
| Strain | THC | Flowering Time | Character |
|---|---|---|---|
| Super Silver Haze | 22–24% | 8–10 weeks | Energising, creative, citrus-skunk flavour |
| Amnesia Haze | 20–22% | 10–12 weeks | More psychedelic lean, earthy citrus, longer finish |
| Jack Herer | 18–23% | 8–10 weeks | Balanced hybrid, pine-forward, smoother ride |
Super Silver Haze sits in the sweet spot: stronger than Jack Herer for most phenotypes, but finishes 2–3 weeks faster than Amnesia Haze. If you want maximum sativa intensity and don't mind waiting, Amnesia Haze seeds go deeper. If you want something slightly less racy, Jack Herer seeds are the gentler option. But for the combination of potency, flavour complexity, and a reasonable flowering window, Super Silver Haze seeds are the best sativa choice for growers who want results without a 12-week wait. You can also browse our full sativa seeds category and our cannabis seeds wiki for growing guides and strain comparisons.
Growing Super Silver Haze indoors? Get a complete grow tent kit to have the light, ventilation, and carbon filter sorted in one go — critical when you're running a strain this pungent. For outdoor growers, a quality pH meter and CalMag supplement will keep these hungry sativa plants fed through their extended flowering cycle. Check out our grow equipment category for everything you need alongside your seeds.
Super Silver Haze won the High Times Cannabis Cup three years running in the late '90s, and the genetics haven't been watered down since. We've watched this strain go from "hot new cross" to "modern classic" over the past two decades. The seeds we stock today produce the same sharp citrus aroma and clear-headed effect that earned those trophies.
The most common question we get about Super Silver Haze seeds at the shop: "Is it too strong for a first grow?" Honestly, it's not the easiest strain — the stretch and the feeding demands put it a step above something like Northern Lights seeds for pure simplicity. But if you've done one or two grows and you're comfortable with topping and basic training, you'll manage fine. The feminized genetics remove the biggest headache (no males), and the 8–10 week flowering window is forgiving compared to other Haze crosses.
One thing we always mention: dry and cure properly. Super Silver Haze buds are dense enough to hold moisture, and rushing the cure kills the terpene profile. Give them 10–14 days hanging at 60% humidity, then jar them with humidity packs. The difference between a 7-day cure and a 14-day cure on this strain is night and day — the citrus notes really open up with patience.
8–10 weeks from the 12/12 light flip. Most phenotypes finish closer to 9 weeks. Check trichomes with a jeweller's loupe rather than counting days — genetics vary slightly plant to plant.
They're intermediate-level. The sativa stretch and higher feeding demands add complexity compared to indica-dominant strains. If you've completed at least one grow and can handle topping or LST, you'll be fine.
Indoors with proper training and lighting, expect 500–650g per square metre. Outdoors in a warm climate with a long season, individual plants can produce significantly more. Training method and light intensity are the biggest variables.
Sharp citrus and lemon zest up front, herbal and spicy in the middle, with a pungent skunk base that builds during the final weeks of flower. It's loud — a carbon filter is not optional indoors.
Mostly sativa. The genetics combine Skunk, Northern Lights, and Haze, with the sativa-dominant Haze parent driving the cerebral, energising character. The indica influence from Northern Lights keeps the structure manageable and adds resin production.
Yes, they thrive outdoors in warm climates with long summers. The plants need enough time to finish their 8–10 week flowering period before temperatures drop and humidity rises in autumn. Mediterranean-style climates are ideal.
SCROG (Screen of Green) works brilliantly. The sativa stretch means plenty of lateral branches to weave through a net, creating an even canopy. Top once or twice during veg to encourage bushier growth and prevent one dominant cola from hogging the light.
You can order Super Silver Haze seeds right here at Azarius in packs of 1, 3, 5, or 10. We ship from the Netherlands and have carried this strain since the late '90s.
Last updated: April 2026
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.
