Sweet Deep Grapefruit cannabis seeds packaging — Royal King Seeds New Zealand
Indica
THC 15%
🌙 Sleep Aid
IndicaFeminisedIn Stock

Sweet Deep Grapefruit Feminised

Sweet Deep Grapefruit Feminised cannabis seeds for New Zealand growers. Indica strain · 15% THC · relaxed, sleepy, happy. Discreet packaging, nationwide delivery, sourced grow figures.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified New Zealand grower submissions, not breeder marketing. Determined from a single batch tested 2026-03-27 on 325 seeds.

Germination rate: 97.5% (n=325)
Last QC test date: 2026-03-27
Indoor yield: 472-616 g/m² (avg across 16 verified grower reports)
Outdoor yield: 452-708 g/plant (avg across 3 verified grower reports)

About Sweet Deep Grapefruit Feminised

Where you grow Sweet Deep Grapefruit in New Zealand matters enormously. Northland cultivators dealing with 35°C+ summers and oppressive humidity need to approach this 70/30 indica differently than someone in Southland's mild maritime climate or Otago's temperamental shoulder seasons. In tropical and subtropical zones, the dense flower architecture at 15% THC creates a genuine mould risk once relative humidity climbs past 65% — coastal Northland and northern Waikato growers should prioritise airflow management above all else. Move south to Wellington or Dunedin, and that same density becomes an asset: cooler autumn nights intensify the caryophyllene terpene expression and the compact frame handles wind exposure without staking.

New Zealand Climate Considerations

Indoor cultivators can control their environment regardless of location, but Sweet Deep Grapefruit rewards specific adjustments for New Zealand conditions. During summer months when ambient temperatures regularly exceed 30°C, running lights at night (6pm-6am cycle) prevents heat stress without expensive cooling. Relative humidity targets: 55-65% in veg, dropping to 40-50% once flowers form. EC targets: 1.0-1.4 during vegetative growth, stepping up to 1.6-2.0 at peak bloom. pH maintained between 5.8 and 6.3 depending on your medium.

Outdoor growers face region-specific challenges. Northland/Northern Waikato: Whitefly and thrips pressure peaks December through February — introduce predatory mites (Phytoseiulus persimilis) early as a preventative measure. The high UV index accelerates trichome production but monitor for light stress on young transplants. VIC/SA/TAS: Your compressed outdoor window (November-March) suits this cultivar's 55-65 days period, but start seeds indoors by late September to maximise vegetative growth before the December solstice. WA: Christchurch growers benefit from low humidity and warm days — possibly the most forgiving outdoor conditions in the country for this strain. Watch for soil salinity in tap water; many Christchurch postcodes run above 500ppm total dissolved solids.

Flowering: 55-65 days. Indoor yield: 550 g/m2. Outdoor yield: 800-900 g/plant. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Sweet Deep Grapefruit unfolds in stages. Initial inhalation at 15% THC brings a warm peppery spice that tingles at the back of the throat. The relaxed, sleepy, happy effects emerge within minutes, beginning as a pleasant heaviness behind the eyes that migrates downward through the shoulders, chest, and limbs. By the fifteen-minute mark, a deep physical stillness sets in — not sedation exactly, but a reluctance to move that makes the couch remarkably appealing. Duration runs 2-3 hours at moderate doses. The myrcene secondary terpene adds a distinct layer: additional body depth that reinforces the physical dimension.

Terpene Breakdown

Primary: Caryophyllene · Secondary: Myrcene · Tertiary: Bisabolol. This particular terpene trio appears frequently in award-winning cultivars and produces a nose that most growers find immediately appealing when jars are first opened after curing. The caryophyllene dominance anchors the aroma, myrcene provides mid-range character, and bisabolol contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.

Suitability and Recommendations

Who grows Sweet Deep Grapefruit successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered nationwide in discreet, unbranded packaging with sourced grow data on every strain page.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😴Sleepy
72% of people reported feeling Sleepy
😊Happy
58% of people reported feeling Happy
🤤Hungry
54% of people reported feeling Hungry
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

Evening
Relaxation
Sleep Support

Strain Type

Indica 70%Sativa 30%

Strain Data Sheet

🧬THC15% - 19% (Medium-High)
🌿LineageGrapefruit × Blueberry
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height90 – 120 cm (typical)
⚖️YieldHigh
🏠Yield Indoor550 g/m2
🌳Yield Outdoor800-900 g/plant
Flowering Time55-65 days

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers are responsible for complying with the law where they live.
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Sweet Deep Grapefruit Feminised
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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 Deep Grapefruit Feminised — Breeder Information

Royal King Genetics

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

Stabilisation Level
F4
Generations
4+
Breeding Programme
Filial Stabilisation (F4) — four-generation selection
Stabilisation Notes — What This Means for Your Grow

F4 stabilisation on Sweet Deep Grapefruit. Each generation we cull aggressively against off-types — the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Pin trichome saturation consistency across the Sweet Deep Grapefruit population.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
18 July 2025· 95% germination guarantee