Super Silver Haze Auto

What Is Super Silver Haze Auto?

Super Silver Haze Auto is a sativa-dominant autoflower that crosses the legendary Super Silver Haze with ruderalis genetics, giving you award-winning sativa energy on an automatic flowering schedule. Instead of waiting 14 weeks and fussing with light cycle flips, you go from seed to harvest in just 8–10 weeks. The result is a plant that delivers 15–17% THC, a bright citrus-spice flavour profile, and the kind of uplifting, creative high that made the original Super Silver Haze a three-time Cannabis Cup winner — all without the photoperiod hassle.

Choosing Your Seed Pack Size

Super Silver Haze Auto seeds come in 1, 3, 5, and 10 seed packs, so you can match your order to your grow space and experience level.

If you're growing outdoors and chasing that potential 500 g/plant yield, the 5 or 10 pack gives you the numbers to select the strongest seedlings and still have spares. For a single indoor cycle, 3 seeds is the sweet spot — you'll comfortably fill your space without overcrowding.

Specifications

Why You Need Super Silver Haze Auto

This is the best autoflower for growers who want classic sativa energy without the 14-week photoperiod wait. If you've ever stalled on growing a sativa because the flowering time felt like a life sentence, Super Silver Haze Auto solves that problem in 8–10 weeks flat.

Here's the scenario we've seen play out hundreds of times since we opened in 1999: someone falls in love with the Super Silver Haze high — that sharp, uplifting, get-things-done energy — and decides to grow it themselves. They buy photoperiod super silver haze seeds, set up their tent, and then spend months managing 12/12 light schedules, battling stretch, and watching the calendar. By the time harvest rolls around, the excitement has worn thin. Autoflowering sativa seeds like this one cut that timeline in half. You run an 18/6 or 24/0 light cycle from day one, the plant triggers flowering on its own internal clock, and you're trimming buds before a photoperiod version would even start showing pistils.

Now, an honest word on size. Super Silver Haze Auto is not a stealth micro-plant. At roughly 110 cm, it will stretch during early flower — that's the sativa genetics doing their thing. If you're working with a 60x60 cm tent or tight vertical clearance, you'll need to top early or use low-stress training to keep the canopy contained. Plan for the stretch and you'll be fine. Ignore it and you'll have colas pressed against your light.

The terpenes announce themselves before you even grind the buds. Bright lemon zest and sweet tropical fruit hit first — it smells like someone peeled a grapefruit in a mango grove. Then comes a dry, peppery spice that lingers on the exhale and makes each hit feel layered rather than one-note. That flavour comes from a terpene profile sharpened over generations of Super Silver Haze breeding, and the 2% CBD adds just enough body relaxation to smooth the edges without dulling the sativa clarity.

The super silver haze effects land squarely in the head. Expect a uplifting, energetic lift that pushes you toward creative projects, long walks, or animated conversations. It's a daytime strain through and through. If you're after heavy, couch-lock relaxation, grab a Northern Lights Auto instead — that one pins you to the sofa. Super Silver Haze Auto keeps you moving, thinking, and engaged.

Indoors, you can expect 250–300 g/m² without heroic effort. Outdoors in a warm climate with full sun, individual plants can push up to 500 g/plant. Those numbers won't break yield records, but they're strong for an autoflower that finishes this quickly, and the quality of the flower more than compensates.

How to Grow Super Silver Haze Auto

Growing Super Silver Haze Auto is straightforward — autoflowers don't need light cycle changes, so the process stays simple from start to finish.

1. Germination (Days 1–3): Place seeds between damp paper towels on a plate, cover, and keep at 22°C. Once the taproot emerges at about 1–2 cm, transfer to your final pot. Autoflowers don't love transplanting, so start in the container you intend to finish in — 11 to 15 litres works well.
2. Vegetative stage (Weeks 1–4): Set your lights to an 18/6 or 24/0 cycle and leave them there for the entire grow. Keep relative humidity around 60–70% and temperatures between 18–22°C. Feed lightly — autos are sensitive to overfeeding in early veg. This is also the window for low-stress training if you need to manage the 110 cm height.
3. Flowering stage (Weeks 4–8): Super Silver Haze Auto will begin flowering automatically around week four. You'll notice pre-flowers forming at the nodes without any light schedule change. Increase phosphorus and potassium in your feed, drop humidity to 40–50%, and watch for the sativa stretch — the plant can gain significant height in the first two weeks of flower.
4. Late flower and harvest (Weeks 8–10): Trichomes shift from clear to milky white. For the most energetic super silver haze effects, harvest when most trichomes are milky with minimal amber. Flush with plain water for the final 5–7 days to clean up the super silver haze flavour and let those citrus-spice terpenes shine.

Frequently Asked Questions

Last updated: April 2026