Sativa Dominant · Green House Seed Co.
Super Silver Haze
Super Silver Haze is Arjan Roskam and Shantibaba's cross of Skunk, Northern Lights, and Haze released in the late 1990s, taking back-to-back High Times Cannabis Cup wins in 1997, 1998, and 1999. The strain anchored the Haze-leaning side of the Green House catalogue for the next two decades and became the maternal parent of Super Lemon Haze, which extended the Cup-winning streak into the late 2000s. The flavor leans sharp citrus and pine on the inhale with a sweet earthy exhale, and plants finish in ten to eleven weeks indoors with medium-density buds and an unusually heavy trichome coverage that gave the strain its 'silver' name. The high is one of the sharpest cerebral lifts in the Haze family — fast onset, clear-headed, and energetic for the first two hours.
Reviewed 2026-05-23· Sources: seedfinder.eu, Green House catalogue, Cannabis Cup archive
Potency
- THC range
- 18–23%
- Typical THC
- 21%
- CBD
- up to 0.1%
Flowering
- Indoor weeks
- 10–11 wk
- Difficulty
- Moderate
- Climate
- Mediterranean, warm dry
Yield & size
- Indoor
- 500-600 g/m²
- Outdoor
- 600-800 g/plant
- Height
- 140-180 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Super Silver Haze smells, tastes, and ultimately feels in the body.
- dominant
Terpinolene
Piney and fruity — fresh, slightly floral, common in sativa-leaning cultivars.
- secondary
Pinene
Alert and pine-forward — associated with mental clarity and bronchodilation.
- secondary
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- minor
Limonene
Uplifting citrus — typically associated with mood elevation and stress relief.
Reported side effects
Lineage
Super Silver Haze traces to Skunk × Northern Lights × Haze. The cross sits in the Haze family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Super Silver Haze based on breeder catalogues. Library entries are clickable; ancestors not yet documented on this site appear in a lighter, non-linked box.
Strains crossed with Super Silver Haze
Super Silver Haze is a parent of 3 strains in the broader catalogue. These are crosses that carry Super Silver Haze genetics on at least one side of the cross.
Grow profile
Grow profile
- Indica / sativa
- 25% / 75%
- Flowering days
- 70–77 days
- Stretch
- High
- Pest resistance
- High
- Mold resistance
- Moderate
- Training methods
- topping, scrog, supercropping
Feed schedule for Super Silver Haze
These EC and NPK targets are starting points calibrated for the strain's Sativa lean and moderate difficulty rating — not gospel. Drop 15-20% off any EC ceiling on your first run and let the plant tell you where it actually wants to feed.
Suggested feed schedule
- Late veg
- 1.2-1.4 EC
- Early flower
- 1.3-1.5 EC, NPK 2-2-3
- Mid flower
- 1.6-1.8 EC, NPK 1-3-4
- Late flower
- 1.4-1.6 EC
- Final week
- Plain pH-balanced water for the last 7-10 days; light flush if you ran nutrients on the higher end.
Full breakdown of feed math, runoff testing, and salt buildup in our nutrient guide.
What to expect through the grow cycle
Super Silver Haze is documented with a 11-week flower and a longer stretch phase typical of sativa-leaning hybrids. The visual below maps a documented 15-week cycle built from 4weeks of vegetative growth and the strain's published flowering window.
Published grow reports for Super Silver Haze concentrate the most observational notes on the stretch window. This timeline is descriptive — it reflects what reports document, not a how-to. Actual week-to-week behaviour varies with phenotype, light intensity, pot size, and environment.
Phase details
- Veg (weeks 1-4)
- The documented vegetative period for Super Silver Haze. Plants establish root structure, leaf canopy, and node count before flower triggering, with a moderate difficulty rating shaping how forgiving the early canopy work tends to be.
- Stretch (weeks 5-8)
- Super Silver Haze is documented as having high stretch. Reports describe the plant roughly doubling in height during this phase as the sativa-leaning structure establishes its final flowering frame.
- Bud sites (weeks 9-10)
- Pre-flowers form at the nodes and calyxes begin to develop. Grow reports for Super Silver Hazenote this as the window where the canopy's eventual bud distribution becomes visible.
- Bud development (weeks 11-13)
- Flowers thicken and calyxes fatten through this phase. Documented Super Silver Haze runs show the bulk of visible flower mass accumulating here, with resin production accelerating toward the end.
- Ripening (week 14)
- Trichomes transition from clear toward cloudy and amber. Reports for Super Silver Haze describe the Terpinolene-led terpene profile maturing through this window, with aroma sharpening week over week.
- Final (week 15)
- Calyx swelling is documented as complete and the harvest window opens. Published Super Silver Haze runs end here, within the 10-11 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Awards
- 1997 · High Times Cannabis Cup — 1st
- 1998 · High Times Cannabis Cup — 1st
- 1999 · High Times Cannabis Cup — 1st
Common questions about Super Silver Haze
Did Super Silver Haze really win three Cannabis Cups in a row?
Yes — Super Silver Haze took first place at the High Times Cannabis Cup in 1997, 1998, and 1999, one of the only strains in the Cup's history to win three years consecutively in any category.
Is Super Silver Haze related to Super Lemon Haze?
Yes — Super Silver Haze is one parent of Super Lemon Haze (the other is Lemon Skunk). The terpene similarities between the two are largely because of this maternal lineage.
Breeder of record
Green House Seed Co.
View breeder profile and other strains →
More from Green House Seed Co.
Strains similar to Super Silver Haze
These picks lean on the same terpene profile and parent genetics as Super Silver Haze — shared dominant terps, overlapping lineage, and matching indica/sativa lean. No star ratings or popularity contests, just overlap on the traits that actually drive a similar grow and smoke.
