Mendo Breath cannabis seeds packaging — Royal King Seeds UK
Hybrid
THC 20%
🌙 Sleep Aid
HybridFeminisedIn Stock

Mendo Breath Feminised

Feminised PhotoperiodSee Lab Report →

Mendo Breath Feminised seeds. A hybrid cultivar at 20% THC delivering euphoric, relaxed, sleepy. Grow figures from named sources.

Select Pack Size
£10.57
1
🇬🇧Free AU Delivery
🌱Germination Promise
🔒Unmarked Packaging
⚗

Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-04 on 275 seeds.

Germination rate: 97.1% (n=275)
Last QC test date: 2026-09-04
Indoor yield: 401-566 g/m² (avg across 9 verified grower reports)
Outdoor yield: 643-892 g/plant (avg across 8 verified grower reports)

About Mendo Breath Feminised

Germination and early veg, days 1-14. Mendo Breath seeds generally crack inside 48 hours on damp kitchen roll and break the surface around day three. Early growth came in even and unhurried, neither racing nor sulking. Four solid nodes by day 14 with the spacing that hints at the hybrid frame to come. Damping off is rare around 70% relative humidity, which is also roughly what an unheated British room sits at in spring.

Veg, weeks 3-6. It took a simple top-and-tie approach well. Topping at node four gave six strong leaders, tied down gently, and an even canopy across a 70cm square by the flip.

Bloom, weeks 1-9. This is where the 60/30 balance in Mendo Breath showed itself. The myrcene came up in week three and kept building; trichome cover was obvious to the naked eye from week five. Indoor yield: 400 g/m2. THC testing at 20%. Rated intermediate.

The rest of the diary

Mid-bloom, weeks 4-6. The change came quickly. Sites that were loose and wispy at week three closed into defined colas. Development stayed even across the whole canopy, which is what the veg training bought — eight comparable colas instead of one dominant top and a handful of also-rans. Resin was visible to the naked eye from week four.

Ripening, weeks 7-9. Feeding dropped to plain water for the last ten days. The myrcene got strong enough that carbon filtration stopped being optional in a terraced house. Trichomes ran clear to milky across the final fortnight, amber showing on sugar leaves first. Around 15% amber on the calyxes is a common place to stop.

Drying and curing. Whole plant hung in the dark at 17°C and 58% humidity for twelve days — both numbers held by a dehumidifier, because an October room in this country will not hold either on its own. Stems snapped rather than bent, which is the test worth trusting. Four weeks in glass followed, burped twice daily for the first fortnight and once daily after. Final weight matched the 400 g/m2 figure. The limonene was far more present after the cure than at harvest, which is the argument for curing properly: the process makes flavour rather than merely keeping it.

Flowering: 7-9 weeks. Indoor yield: 400 g/m2. Outdoor yield: 400 g/plant. Rated intermediate difficulty. Feminised seeds.

What Mendo Breath is actually like

Growers report euphoric, relaxed, sleepy as the defining characteristics and our own notes agree. At 20% THC this hybrid sits where the balance is the selling point. Taken small it stays functional; taken larger it relaxes properly. The ${indica}/${sativa} split means the direction is set by how much you take rather than fixed by the genetics. The Myrcene/Limonene pairing leaves earth and faint sweetness on the palate, with fruit at the end.

Best suited to most occasions — the dose does the steering.

Terpene breakdown

Primary: Myrcene · Secondary: Limonene · Tertiary: Pinene. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the limonene and pinene audible over the myrcene base. Run it hotter, or burn it, and the three collapse into one note — pleasant enough, but none of the complexity that made it worth choosing.

Who it suits

Mendo Breath suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for bigger plants, or flip early when space is short. The April to October season accommodates a bloom of 7-9 weeks comfortably for outdoor growers across the country.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
😌Relaxed
65% of people reported feeling Relaxed
😴Sleepy
65% of people reported feeling Sleepy
😊Happy
51% of people reported feeling Happy
🤩Creative
50% of people reported feeling Creative
😎Uplifted
38% of people reported feeling Uplifted
🤤Hungry
34% of people reported feeling Hungry
😆Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Strain Type

Indica 60%Sativa 30%

Strain Data Sheet

🧬THC20% - 25% (High)
🌿LineageOG Kush Breath × Mendo Montage
🔬TypeFeminised Hybrid
🌡ClimateTemperate, adaptable
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height100 – 160 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 g/m2
🌳Yield Outdoor400 g/plant
⏱Flowering Time7-9 weeks

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 must comply with all applicable United Kingdom legislation.
1
Mendo Breath Feminised
royalkingseeds.co.uk
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

American Strains Pack cannabis seeds packaging — Royal King Seeds UK
Hybrid
THC 22%
🎨 Creative

American Strains Pack

EnergizingHappyCreative
▼
£21.14
Charlie Sheen cannabis seeds packaging — Royal King Seeds UK
HybridAuto
THC 19%
😊 Beginner Pick

Charlie Sheen Auto

EuphoricHappyRelaxed
▼
£9.78
OG Chem cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 20%
🎨 Creative

OG Chem Feminised

EuphoricHappyUplifted
▼
£11.35
Marcosus Marshmellow cannabis seeds packaging — Royal King Seeds UK
Indica
THC 14%
🎨 Creative

Marcosus Marshmellow Feminised

EuphoricCreativeFocused
▼
£10.57

Mendo Breath 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
BX2
Generations
3+
Breeding Programme
Backcross Stabilisation (BX2) — modern hybrid fixing
Stabilisation Notes — What This Means for Your Grow

Mendo Breath carries clone-derived parents from the 2010s production. We backcrossed twice to the dominant parent (BX2) to weld cut-specific traits into seed-stable form. Vigour and flavour saturation run uniform across the population.

Breeding Goal

Carry a clone-derived 2010s production hybrid through to a stable seed pack.

Selection Focus

Chosen for hybrid frame, clean terpene expression and consistent yield across the population.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

Last Batch QC Verified
1 September 2026· 99%+ germination