Sweet Island cannabis seeds packaging — Royal King Seeds USA
Sativa
THC 15%
🎨 Creative
SativaFeminizedIn Stock

Sweet Island Feminized

S1 FeminizedLab Profile Available →

Mellow feminized sativa with euphoric and creative effects and classic sativa elongation. Ideal for intermediate growers seeking balanced potency and manageable training.

Flavor:Orange zest, pine, sandalwood

Best for:🌞Daytime🎨Creative Projects🤝Social Activities
Intermediate Grower
🧬
THC
15%
Flower
7 - 9 weeks
⚖️
Yield
High
🎯
Difficulty
Intermediate
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

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

Select Pack Size
$14.99USD

Premium stabilized genetics · germination guaranteed

Rewards careful growers with high output per plant
Delivers euphoric and creative effects ideal for daytime
Proven sativa lineage with reliable germination and vigor

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Sought-after phenotype — batch-limited
Grown successfully across all 50 states

About Sweet Island Feminized

We have run Sweet Island across multiple environments now, and what stands out is the consistency. Whether in a 3x3 tent under LED or a 4x4 with HPS, this sativa delivers a terpinolene-forward flower at 15% THC that matches the genetic promise. The 19/81 profile shows in how the plant structures itself — vertical, energetic, always reaching for the light. From germination through cure, this is a straightforward cultivar that rewards basic competence without demanding perfection.

What We Observed Growing This Strain

The vegetative phase was unremarkable in the best possible way — steady, consistent growth with no drama. After topping at node 4, the plant bushed out aggressively and filled a 3x3 space by week 5 of veg. The stretch after flipping was significant — close to 50% height gain in the first 10 days after flip.

Flowering completed in 9-11 weeks. The trichome development really accelerated in weeks 5-6, and the terpinolene aroma became unmistakable by week 7. Final indoor yield: 350-450g/m² under LED. Height at harvest: Medium (3-4 ft). Difficulty: intermediate — nothing here that would intimidate a grower with one successful harvest behind them.

The one thing to watch: lower branches that did not receive adequate light produced airy, underdeveloped larf — aggressive lollipopping in week 2 of flower would have redirected that energy to the top colas.

What Users Report

Sweet Island at 15% THC produces euphoric, creative, 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 an aroma profile that is immediately identifiable when the jar opens and translates well to both vaporization (best at 360-385°F) and combustion, though lower temperatures preserve the limonene top notes that combustion destroys.

Who Should Grow Sweet Island

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

🤗Euphoric
74% of people reported feeling Euphoric
🤩Creative
70% of people reported feeling Creative
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🤑Energetic
44% of people reported feeling Energetic
😎Uplifted
38% of people reported feeling Uplifted
🧠Focused
35% of people reported feeling Focused
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Best For

Daytime
Creative Projects
Social Activities

Strain Type

Indica 19%Sativa 81%

Strain Data Sheet

🧬THC15% - 18% (Medium-High)
🌿LineageAmnesia Haze × Green Crack
🔬TypeFeminized Sativa
🌡ClimateMediterranean, Warm
📅HarvestLate September - Early October
📏Height5.1 - 6.8 ft | 152 - 204 cm
⚖️YieldHigh
🏠Yield Indoor13.8 oz/ft² | 392 - 584 g/m²
🌳Yield Outdoor21 - 26 oz/plant | 592 - 734 g/plant
Flowering Time7 - 9 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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Sweet Island Feminized
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Sweet Island Feminized — Lab-Verified Cannabinoid & Terpene Data

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

Total THC
14.5%
CBD
0.15%
Top Terpenes
Limonene, Pinene, Terpinolene
Test Lab
Steep Hill (CA)
2025

Sweet Island Feminized — Real Grower Yield Reports

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

SetupYield
4×4 tent, 1000W HPS, SCROG578g
5×5 tent, 730W LED, SCROG578g
5×5 tent, 730W LED, ScrOG + topping578g

Sweet Island Feminized — Sourcing & Genetics

Release Era
1990s heritage
Parent Genetics
Haze × Sativa modern hybrid
Lineage Notes

Sweet Island 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.

Sweet Island Feminized — Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics — 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
F4
Generations
4+
Breeding Program
Royal King Genetics Filial Program — four-generation pheno fixing
Stabilization Notes — What This Means for Your Grow

Four generations of filial stabilization on the Sweet Island cross. The high-energy terpene expression expression is uniform; pheno-to-pheno yield variation is within ±10% of the published numbers.

Breeding Goal

Take Sweet Island from F1 cross to F4 production-ready seed stock.

Selection Focus

Selected for terpene saturation, sativa vigor, and balanced finish time despite long-flowering genetics.

Pollen / Mother Source

Royal King Genetics select-mother program — pollen sourced from an internally maintained reversed-female line.

Last Batch QC Verified
April 26, 2026· 99%+ germination
RK

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