Royal Medic cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 10%
🎨 Creative
SativaFeminisedIn Stock

Royal Medic Feminised

Feminised PhotoperiodSee Lab Report →

Royal Medic Feminised seeds. A sativa cultivar at 10% THC delivering calming, relaxed, uplifted. Grow figures from named sources.

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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 2026-09-09 on 300 seeds.

Germination rate: 97.0% (n=300)
Last QC test date: 2026-09-09
Indoor yield: 415-574 g/m² (avg across 15 verified grower reports)
Outdoor yield: 585-848 g/plant (avg across 6 verified grower reports)

About Royal Medic Feminised

Read Royal Medic backwards from the harvest: 500-550 g/m2 under lights, 475-525 g/plant outdoors, with resin filling out towards 10% THC. This 25/75 cultivar spreads its weight gain across the whole of bloom instead of front-loading it the way a quick indica does. Cutting early out of nerves about the weather is the most expensive mistake made with plants of this shape. In Britain that means holding through late September and into October depending on your latitude, because the limonene-led profile only fills out in the closing fortnight.

Getting the weight out of this plant

Three stretches of the 60-65 days of bloom decide whether you reach the top of this strain's range (500-550 g/m2 indoors, 475-525 g/plant outdoors). The rest is maintenance.

The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. It can add half again its height. Supercrop anything that breaks the line of the canopy inside the first week or you will spend the rest of bloom lighting one branch properly and five badly.

Weeks three to five. Limonene production climbs through here, and it responds to a day-night temperature gap of 6-8°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26°C lights-on and 18-20°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.

The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe — cut at 5-10% amber to keep the clear, lifted character intact. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.

Flowering: 60-65 days. Indoor yield: 500-550 g/m2. Outdoor yield: 475-525 g/plant. Plant height: 80-120 cm. Rated intermediate difficulty.

What Royal Medic is actually like

Growers report calming, relaxed, uplifted as the defining characteristics and our own notes agree. At 10% THC this sativa sits where most people find a workable window. Vaporised at 175-185°C the first effect is lift and mental energy, suited to work that benefits from it, a long walk, or an afternoon with company. The body stays light throughout, which makes it a genuine daytime option for anyone with a tolerance. The Limonene/Terpinolene pairing leaves a clean citrus finish that clears quickly.

Best suited to creative work, company, getting outdoors, and daytime use generally.

Terpene breakdown

Primary: Limonene · Secondary: Terpinolene · Tertiary: Pinene. This combination turns up often in cultivars that win things, and it is usually the one growers comment on when a jar is opened for the first time after curing. Limonene anchors the aroma, terpinolene occupies the middle, and pinene sits behind both — which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Royal Medic 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 60-65 days comfortably for outdoor growers across the country.

Effects

🌟Calming
77% of people reported feeling Calming
😌Relaxed
65% of people reported feeling Relaxed
😎Uplifted
58% of people reported feeling Uplifted
😊Happy
51% of people reported feeling Happy
🤑Energetic
44% of people reported feeling Energetic
🤩Creative
43% of people reported feeling Creative
🤗Euphoric
33% of people reported feeling Euphoric
🧠Focused
28% of people reported feeling Focused
🗣️Talkative
16% of people reported feeling Talkative

Strain Type

Indica 25%Sativa 75%

Strain Data Sheet

🧬THC10% - 14% (Medium)
🌿LineageSativa-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height80-120 cm
⚖️YieldHigh
🏠Yield Indoor500-550 g/m2
🌳Yield Outdoor475-525 g/plant
⏱Flowering Time60-65 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 must comply with all applicable United Kingdom legislation.
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Royal Medic Feminised
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Royal Medic 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

Royal Medic has been progressed through four generations of phenotype hunting and selection. Vigour, long-flowering uniformity and finishing time are all locked across the pack — every plant performs to the spec sheet.

Breeding Goal

Carry Royal Medic from F1 cross to F4 production-ready seed stock.

Selection Focus

Chosen for sativa vigour, bud-to-leaf ratio and the distinctive terpene character of the original cut.

Pollen / Mother Source

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

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