Blackwater cannabis seeds packaging, Royal King Seeds USA
Indica
THC 19%
📈 High Yield
IndicaFeminizedIn Stock

Blackwater Feminized

S1 FeminizedLab Profile Available →

Well-balanced feminized indica with euphoric and calm effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

Flavor:Chocolate, coffee, earthy sweetness

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
19%
Flower
9 - 11 weeks
⚖️
Yield
High
🎯
Difficulty
Intermediate
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Defoliate selectively to open airflow around the inner canopy

Select Pack Size
$14.49USD

Premium stabilized genetics · germination guaranteed

Delivers high harvests under balanced light and nutrients
Blends euphoric and calm sensations, perfect for evening
Premium indica genetics refined for home growers

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Curated for US home growing conditions

About Blackwater Feminized

Blackwater is a 83/17 indica testing at 19% THC with a linalool-dominant terpene profile. At a practical level, this means a plant that stays compact with tight internodal spacing and develops dense, resin-coated flower clusters that finish in 9-11 weeks. The Linalool/Myrcene combination shapes both the aromatic profile and the effect character, this is not a one-dimensional strain.

Growing Parameters

Flowering time: 9-11 weeks from flip. Indoor yield at 600+ PPFD: 300-400g/m². Outdoor in full sun with 5+ gallon containers: 500-700g/plant. Plant height indoors after training: Tall (4-5 ft). Feed EC targets: 1.0-1.4 in veg, 1.4-1.8 in peak flower. pH range: 6.0-6.5 in soil, 5.8-6.2 in coco. Linalool production peaks when day/night temperature differential exceeds 10°F in the final two weeks, growers who drop nighttime temps to 62-65°F during this window report stronger aromatic development.

This cultivar responds well to topping at the 4th node and moderate defoliation in week 1 and week 3 of flower. SCROG training at a 4x4 grid produces the most uniform canopy distribution. Rated intermediate difficulty.

What Users Report

Blackwater at 19% THC produces euphoric, calm sensations that users consistently describe as physically comforting without being immobilizing at moderate doses. The relaxation builds gradually, noticeable within 10 minutes, settling fully by the 20-minute mark, and sustaining for 2-3 hours. The Linalool/Myrcene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other indicas at similar THC levels.

Best suited for evening use, unwinding after a long day, and situations where deep physical relaxation is the goal.

Terpene Profile

Dominant terpenes: Linalool (primary), Myrcene (secondary), Caryophyllene (tertiary). This combination produces a flavor that rewards patience in the cure, 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 Blackwater

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
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🤤Hungry
41% of people reported feeling Hungry
🌿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 83%Sativa 17%

Strain Data Sheet

🧬THC19% - 24% (Medium-High)
🌿LineagePurple Punch × Master Kush
🔬TypeFeminized Indica
🌡ClimateAll Climates (Hardy)
📅HarvestMid - Late October
📏Height3.2 - 5.4 ft | 96 - 162 cm
⚖️YieldHigh
🏠Yield Indoor15.4 oz/ft² | 436 - 622 g/m²
🌳Yield Outdoor17 - 24 oz/plant | 486 - 672 g/plant
Flowering Time9 - 11 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium US 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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Blackwater Feminized
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
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🔢Scratchable serial number

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Blackwater Feminized, Cannabinoid & Terpene Reference

Reference ranges aggregated from publicly-reported third-party lab data and breeder documentation. Total THC reported as max-potential (THC + 0.877 × THCA). Individual seed-lot expression may vary by 1-3 percent.

Total THC
18.9%
CBD
0.09%
Top Terpenes
Myrcene, Caryophyllene, Pinene

Blackwater Feminized, Aggregated Grower Yield Reports

Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Blackwater Feminized feminized seeds. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, balcony, 5-gal fabric pot520g
Outdoor, greenhouse, supplemental light520g
4×4 tent, 600W LED, LST400g

Blackwater Feminized, Sourcing & Genetics

Release Era
Mid-2000s
Parent Genetics
Pure Hindu Kush mountain heritage
Lineage Notes

Blackwater Feminized was hybridized in the past five years by combining classic Indica/Sativa parent lines with modern high-THC genetics.

Recommended US Climate

Cold-tolerant; performs well in short-season Northern states (ME, VT, MN, WI). Indoor cultivation works anywhere.

Blackwater Feminized, Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics , our internal breeding team. Every order is backed by our 95% germination guarantee. 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

F4 stabilization on Blackwater. Each generation we cull aggressively against off-types, the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Stabilize the Blackwater cross over four selection generations.

Selection Focus

Selected for purple/dark expression where present, dense bud structure, and indica relaxation profile.

Pollen / Mother Source

Royal King Genetics breeding program, pollen from selected sibling males of the recurrent parent.

Germination Guarantee
95% germination, free replacements if seeds fail
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