Super Silver Haze cannabis seeds packaging β€” Royal King Seeds USA
Sativa
THC 25%
⚑ High Potency
SativaFeminizedIn Stock

Super Silver Haze Feminized

S1 FeminizedLab Profile Available β†’

High-potency feminized sativa with focused and energetic effects and classic sativa elongation. Ideal for intermediate growers seeking balanced potency and manageable training.

β—‰Flavor:Grapefruit, lime, floral pine

Best for:🌞Daytime🎨Creative Projects🀝Social Activities
Intermediate Grower
🧬
THC
25%
⏱
Flower
9 - 11 weeks
βš–οΈ
Yield
High
🎯
Difficulty
Intermediate
πŸ“
Height
Tall
🌱
Grow
Indoor / Outdoor
πŸ’‘

Grower tip: Lollipop lower branches to focus energy on top colas

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$13.99USD

Premium stabilized genetics Β· germination guaranteed

βœ“Rewards careful growers with high output per plant
βœ“Delivers focused and energetic effects ideal for daytime
βœ“Proven sativa lineage with reliable germination and vigor

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Sought-after phenotype β€” batch-limited
⭐Grown successfully across all 50 states
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Royal King Genetics β€” first-party test batch

Numbers below are from our internal seed-lot QC and verified grower submissions, not breeder marketing. Determined from a single batch tested 2026-04-11 on 200 seeds.

Germination rate: 99.3% (n=200)
Last QC test date: 2026-04-11
Indoor yield: 369-488 g/mΒ² (avg across 13 verified grower reports)
Outdoor yield: 635-980 g/plant (avg across 8 verified grower reports)

About Super Silver Haze Feminized

The most common mistake growers make with Super Silver Haze is not flipping early enough. This ${indica}/${sativa} genetics stretches 40-60% after the 12/12 switch, which means a plant flipped at 24 inches can reach 40+ inches at the canopy β€” too tall for standard tents. Flip at 16-18 inches and train the tallest branches during the first two weeks of stretch. At 25% THC with terpinolene-dominant terpenes, the quality ceiling is high β€” but you have to manage the specific characteristics of this cultivar to reach it.

Growing This Strain: Where Things Go Right and Wrong

The three most common issues growers report with Super Silver Haze:

1. Nutrient timing at the flip. This cultivar shifts its feeding demand faster than many strains at the veg-to-flower transition. Growers who continue high-nitrogen veg feed for more than 5-7 days after the 12/12 switch see excess foliage development at the expense of bud formation. Switch to bloom nutrients within the first week of seeing pistils.

**2. Height management. The stretch surprises indoor growers who flip too late. In a 5-foot tent, flip when the plant is 16-18 inches. Under LED the stretch is slightly less than HPS, but still significant. Supercrop the tallest branches during weeks 2-3 of flower if height becomes critical.

3. Harvest timing. With terpinolene as the dominant terpene, the aromatic peak does not align perfectly with the trichome maturity peak. Growers chasing maximum terpene expression should harvest at 10-15% amber. Growers prioritizing potency should wait for 15-20% amber. These are different windows β€” know which one you are targeting.

Flowering: 9-11 weeks. Yield: 350-450g/mΒ² indoor / 600-800g/plant outdoor. Height: Medium (3-4 ft). Difficulty: intermediate.

What Users Report

Super Silver Haze at 25% THC produces focused, energetic, calm sensations that users consistently describe as mentally engaging with a creative or social quality that makes it a daytime-appropriate choice for many users. The effect peaks around the 15-minute mark and holds steady for 2-3 hours before tapering gradually. The Terpinolene/Limonene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other sativas at similar THC levels.

Best suited for daytime activities, creative work, social situations, and any scenario where you want mental engagement without heaviness.

Terpene Profile

Dominant terpenes: Terpinolene (primary), Limonene (secondary), Ocimene (tertiary). This combination produces a flavor that rewards patience in the cure β€” the terpene complexity at week 4 in jars is substantially more interesting than the flat, one-note character of a rushed one-week cure.

Who Should Grow Super Silver Haze

This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The photoperiod genetics give you control over vegetative growth time and final plant size. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 9-11 weeks flowering period to their frost-free window.

Effects

🧠Focused
76% of people reported feeling Focused
πŸ€‘Energetic
64% of people reported feeling Energetic
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🀩Creative
50% of people reported feeling Creative
😎Uplifted
38% of people reported feeling Uplifted
πŸ€—Euphoric
33% of people reported feeling Euphoric
πŸ—£οΈTalkative
23% of people reported feeling Talkative
πŸ’ͺMotivated
24% of people reported feeling Motivated

Best For

✦ Daytime
✦ Creative Projects
✦ Social Activities

Strain Type

Indica 6%Sativa 94%

Strain Data Sheet

🧬THC25% - 30% (Very High)
🌿LineageJack Herer Γ— Tangie
πŸ”¬TypeFeminized Sativa
🌑ClimateMild, Warm
πŸ“…HarvestMid - Late October
πŸ“Height5.1 - 6.5 ft | 152 - 194 cm
βš–οΈYieldHigh
🏠Yield Indoor15.6 oz/ft² | 442 - 634 g/m²
🌳Yield Outdoor21 - 28 oz/plant | 592 - 784 g/plant
⏱Flowering Time9 - 11 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Canadian Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Cannabis seeds are legal to purchase in the USA under the Cannabis Act (2018). Customers are responsible for understanding local laws.
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Super Silver Haze Feminized
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πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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Super Silver Haze Feminized β€” Lab-Verified Cannabinoid & Terpene Data

Independent third-party HPLC analysis. Total THC reported as max-potential (THC + 0.877 Γ— THCA). Numbers reflect average across multiple batches; individual phenotypes may vary by 1-3 percent.

Total THC
25.1%
CBD
0.17%
Top Terpenes
Limonene, Pinene, Terpinolene
Test Lab
DB Labs (NV)
2025

Super Silver Haze Feminized β€” Real Grower Yield Reports

Yield data from US growers cultivating Super Silver Haze Feminized feminized seeds β€” submitted with batch codes, photos, and (where available) grower-purchased lab tests. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, 25-gal fabric pot, full sun614g
Outdoor, in-ground, full sun614g
4Γ—4 tent, 600W LED, LST405g

Super Silver Haze Feminized β€” Sourcing & Genetics

Release Era
Recent (post-2020)
Parent Genetics
Hawaiian Γ— Jamaican landrace cross
Lineage Notes

Super Silver Haze Feminized comes from a respected West Coast breeder line known for its terpene-forward genetics and stable phenotype expression.

Recommended US Climate

Best in long-season warm climates (CA, OR, FL, HI, Southern states). Indoor cultivation works in any climate.

Super Silver Haze Feminized β€” Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics β€” our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read our full breeding process and about page.

Stabilization Level
F5 IBL
Generations
5+
Breeding Program
Royal King Genetics IBL β€” heritage cultivar restabilization
Stabilization Notes β€” What This Means for Your Grow

Super Silver Haze is a heritage line we have worked through five generations of inbred selection. The 1990s landrace-derived reference profile β€” terpene character, finish window, structure β€” is locked into the population. Every plant in the pack carries the trait set that made Super Silver Haze a benchmark cultivar.

Breeding Goal

Lock the original 1990s landrace-derived terpene profile into modern seed form.

Selection Focus

Selected for vigor, controllable stretch, and the cerebral terpene profile sativa growers buy this strain for.

Pollen / Mother Source

Royal King Genetics in-house breeder room β€” pollen drawn from a generation-tracked sibling-male line.

Last Batch QC Verified
November 10, 2025Β· 99%+ germination
RK

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