Lemon Diesel cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 21%
🎨 Creative
IndicaFeminisedIn Stock

Lemon Diesel Feminised

Order Lemon Diesel Feminised seeds online in Ireland. A quality indica cultivar at 21% THC delivering relaxed, talkative, uplifted. Chosen for a short season and a damp finish. Fast shipping and a germination guarantee.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-21 on 400 seeds at 20-23°C.

Germination rate: 96.7% (n=400)
Last QC test date: 2026-09-21
Indoor yield: 486-630 g/m² (avg across 6 verified grower reports)
Outdoor yield, Ireland: 392-614 g/plant (avg across 9 verified grower reports)

About Lemon Diesel Feminised

Everything about Lemon Diesel at harvest follows from one decision, which is when you stop. The figures are 350 - 400 g/m² indoors and 80 - 100 g/plant outdoors, with resin filling towards 21% THC. Weight arrives late on a plant this indica-leaning — the 90/10 split stacks calyxes hard through the middle weeks and then thickens them. Growers who cut on the calendar rather than the glass lose that last stage, and it is the most valuable one.

Where the weight is won

Three parts of the 9-10 weeks of bloom account for most of the difference between a good result and an average one on a plant rated 350 - 400 g/m² indoors and 80 - 100 g/plant outdoors.

The stretch, days 1-10 after the flip. Canopy height set here decides how evenly light lands for the rest of the run. Twenty to thirty per cent is typical; taking the lowest fans around day seven pushes energy up to the sites that will finish.

Weeks three to five. Myrcene production climbs through this stretch and responds to a 6-8°C gap between lights-on and lights-off. Outdoors an Irish September provides that without help; indoors it has to be built, at roughly 25°C by day and 18-20°C at night. Bloom feed goes potassium-forward around EC 1.6-1.8.

The final fortnight. Feeding stops, plain pH-corrected water goes on, and the loupe comes out daily. Fifteen to twenty per cent amber suits the weight of effect this one is grown for. Outdoors, that falls between late September and mid-October, and the forecast gets a say.

Flowering: 9-10 weeks. Indoor yield: 350 - 400 g/m². Outdoor yield: 80 - 100 g/plant. Plant height: Small (0-120 cm). Rated moderate difficulty.

What Lemon Diesel is like in practice

The catalogue lists relaxed, talkative, uplifted, and that matches what growers here report back. At 21% THC this indica sits where the dose is the whole question. One bowl through a vaporiser at 185°C leaves the head working and the body easy, which is what most people are after on a weeknight. More than that moves it firmly towards sedation. The Myrcene and Humulene together leave earth and faint sweetness, with fruit at the end.

Suited to evenings in, recovery after work, and the hour before sleep.

Terpene breakdown

Primary: Myrcene · Secondary: Humulene · Tertiary: Linalool. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps humulene and linalool audible over the myrcene; run it hotter, or burn it, and all three collapse into one note that is pleasant enough and tells you nothing.

Who it suits

Lemon Diesel suits growers with the fundamentals in place. Understand pH, rough nutrient ratios and a light cycle before committing to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for a bigger plant, or flip early when the ceiling is low. A bloom of 9-10 weeks fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🗣️Talkative
64% of people reported feeling Talkative
😎Uplifted
58% of people reported feeling Uplifted
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🤤Hungry
41% of people reported feeling Hungry
🤗Euphoric
33% of people reported feeling Euphoric
🧘Calm
26% of people reported feeling Calm
🌿Stress Relief
13% of people reported feeling Stress Relief

Best For

✦ Anytime
✦ Insomnia
✦ Pain
✦ Stress

Strain Type

Indica 90%Sativa 10%

Strain Data Sheet

🧬THC21% - 26% (High)
🌿LineageLost Coast OG × California Sour
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestSept – Nov, S. hemisphere (typical)
📏HeightSmall (0-120 cm)
⚖️YieldMedium – High
🏠Yield Indoor350 - 400 g/m²
🌳Yield Outdoor80 - 100 g/plant
⏱Flowering Time9-10 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 are responsible for complying with the law where they live.
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Lemon Diesel Feminised
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🛡️Aluminium interior lining
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Lemon Diesel 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
F3
Generations
3+
Breeding Programme
F3 Refinement Programme — three-generation selection
Stabilisation Notes — What This Means for Your Grow

A newer modern hybrid cross still being actively stabilised. F3 means three rounds of selection — the dense flower architecture is locked across the bulk of the pack, with a small variant subset under continued cull.

Breeding Goal

Reach trait homogeneity in Lemon Diesel through advanced filial refinement.

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
6 September 2026· 99%+ germination