Harle-Tsu CBD cannabis seeds packaging — Royal King Seeds the UK
Cbd
THC 30%
High Potency
CBDFeminizedIn Stock

Harle-Tsu CBD Feminized

Feminized PhotoperiodSee Lab Report →

Harle-Tsu CBD Feminized cannabis seeds for UK growers. Cbd strain · 30% THC · focused, calm. Priced in GBP, UK-wide delivery, germination guarantee.

Select Pack Size
£12.24
1
🇦🇺Free AU Delivery
🌱Germination Promise
🔒Unmarked Packaging

About Harle-Tsu CBD Feminized

Here is what Harle-Tsu CBD delivers at harvest: 350-400 g/m2 per square metre indoors, 550-600 g/plant per plant outdoors in UK conditions, with resin production peaking at 30% THC. Those numbers tell a story when you work backwards through the 8-9 weeks window. Weight distribution across the 8-9 weeks cycle is pleasingly even, with a noticeable surge in the closing two weeks that rewards growers who resist harvesting prematurely. The 47/53 balance means you get both calyx stacking density and respectable trichome spread. For outdoor UK customers, the ideal harvest window lands between mid-March and mid-April — early enough to dodge late-autumn moisture in most states, late enough to capture the full myrcene terpene development.

Maximising Your Harvest

To reach the upper end of this strain's yield potential (350-400 g/m2 indoors, 550-600 g/plant outdoors), focus your efforts on three critical windows during the 8-9 weeks period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Moderate 30-40% stretch is typical. One round of low-stress training on the tallest shoots keeps everything level.

Window 2: Weeks 3-5 of bloom. Myrcene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8°C to encourage terpene accumulation — UK autumn evenings (March-April) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26°C during lights-on and 18-20°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.

Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe — harvest at 10-15% amber for a balanced effect. Southern Hemisphere outdoor growers: this window typically falls in late March through mid-April.

Flowering: 8-9 weeks. Indoor yield: 350-400 g/m2. Outdoor yield: 550-600 g/plant. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Harle-Tsu CBD unfolds in stages. Initial inhalation at 30% THC brings a deep, musky earthiness that coats the palate. The focused, calm effects emerge within minutes, presenting as a simultaneous head-and-body experience. Mental clarity remains intact whilst the muscles release tension progressively. This dual action makes it adaptable — a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The bisabolol secondary terpene adds a distinct layer: a complementary nuance that adds depth to the overall experience.

Terpene Breakdown

Primary: Myrcene · Secondary: Bisabolol · Tertiary: Linalool. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with myrcene presence, but after three to four weeks in sealed glass jars at 16-18°C, the linalool undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180°C and 195°C captures the broadest spectrum of these terpenes — higher temperatures degrade the more volatile linalool molecules first.

Suitability and Recommendations

Who grows Harle-Tsu CBD 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 UK-wide in discreet, unbranded packaging with germination guarantee included.

Effects

🧠Focused
76% of people reported feeling Focused
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
🌿Stress Relief
47% of people reported feeling Stress Relief
💊Pain Relief
44% of people reported feeling Pain Relief
😊Happy
38% of people reported feeling Happy
😴Sleepy
38% of people reported feeling Sleepy
💆Body High
24% of people reported feeling Body High
Tingling
16% of people reported feeling Tingling

Strain Type

Indica 47%Sativa 53%

Strain Data Sheet

🧬THC30% - 35% (Very High)
🌿LineageHarlequin × Sour Tsunami
🔬TypeFeminized Cbd
🌡ClimateTemperate, adaptable
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height100 – 160 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor350-400 g/m2
🌳Yield Outdoor550-600 g/plant
Flowering Time8-9 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable UK Commonwealth, state, and territory legislation.
1
Harle-Tsu CBD Feminized
royalkingseeds.co.uk
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

Strawberry Milkshake cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 19%
📈 High Yield

Strawberry Milkshake Feminized

RelaxedHappyEuphoric
$9.47AUD
Fruity Pebbles cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 20%
🎨 Creative

Fruity Pebbles Feminized

UpliftedHappyRelaxed
$11.05AUD
Jane Doe cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 23%
🌙 Sleep Aid

Jane Doe Feminized

RelaxedEuphoricCalm
$10.66AUD
Gorilla Cookies cannabis seeds packaging — Royal King Seeds the UK
Indica
THC 24%
🎨 Creative

Gorilla Cookies Feminized

EuphoricCreativeCalm
$11.45AUD

Harle-Tsu CBD Feminized — 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
CBD-Stabilised Line (F4) — recessive cannabinoid fixing
Stabilisation Notes — What This Means for Your Grow

CBD-dominance does not stabilise in one or two generations. Harle-Tsu has been progressed through four cycles of selection at Royal King Genetics until the CBD:THC ratio expressed uniformly across the population.

Breeding Goal

Stabilise the CBD:THC ratio in Harle-Tsu for uniform pack expression.

Selection Focus

Chosen for CBD:THC ratio expression, low-THC consistency and a bud structure suited to medical production.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
4 November 2025· 99%+ germination