Hempstar cannabis seeds packaging — Royal King Seeds Ireland
SativaAuto
THC 22%
😊 Beginner Pick
SativaAutoflowerIn Stock

Hempstar Auto

Order Hempstar Auto seeds online in Ireland. A quality sativa cultivar at 22% THC delivering euphoric, focused, relaxed. Chosen for a short season and a damp finish. Fast shipping and a germination guarantee.

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10.04EUR
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About Hempstar Auto

Can I grow Hempstar outdoors in Ireland? Absolutely. This 10/80 sativa suits the Irish outdoor season, planted out at the end of May and harvested by early October. Expect taller plants that appreciate the long summer daylight hours — give it room to stretch and you will be rewarded with impressive cola development. Flowering takes 50-60 days, placing your harvest window squarely between mid-September and early October for most Irish counties.

What kind of yield should I realistically expect? Indoor growers pulling up to 400 g/m2 is achievable with decent LED lighting and attentive feeding. Outdoors, up to 550 g/plant per plant is realistic in 50+ litre pots or directly in prepared garden soil with full sun exposure. At 22% THC and a terpinolene-forward terpene profile, the quality-to-effort ratio makes Hempstar genuinely worthwhile.

Is this strain forgiving for newer growers? Reasonably so. A grower with basic knowledge of pH, feeding schedules, and light cycles will manage fine. It is not the most forgiving plant if you neglect it entirely, but it will not collapse at the first missed watering either.

More Questions Irish Growers Ask About Hempstar

What growing medium works best for this strain? For maximum flavour complexity, organic soil blended with 30% perlite and enriched with slow-release amendments (bone meal, rock phosphate, kelp meal — all readily available from a garden centre, an agricultural co-op or your local hydro shop). For maximum yield, coco coir with automated fertigation at EC 1.4-1.8 during bloom. Both approaches produce excellent results with this sativa genetics.

How does it handle an Irish summer? Better than most, and for the reason that matters here: the open canopy sheds moisture. Irish summers are mild rather than hot, so the airflow this structure allows is worth far more than any heat tolerance. Wind is the thing to plan for instead — stake early on an exposed site.

When should I start feeding bloom nutrients? Within the first week of visible pistil formation. This cultivar's 10/80 genetics shifts its nutritional demand rapidly at the transition. Phosphorus and potassium uptake increases noticeably, whilst nitrogen demand drops. An organic top-dress of bat guano and sulphate of potash works well for soil growers; hydro and coco growers should switch to a bloom-ratio formula (low N, high PK) immediately.

Indoor or outdoor — which is better for this strain? Both work. Indoor gives you control over the 50-60 days environment. Outdoor in the Irish season (late May to early October) gives the plant seventeen hours of midsummer daylight to work with, which is genuinely hard to match indoors, and is where the up to 550 g/plant figure comes from — the cost is that the finish is a race against the autumn. Flowering: 50-60 days. Indoor yield: up to 400 g/m2. Outdoor yield: up to 550 g/plant. Plant height: 90-120 cm. Medium. Rated easy difficulty.

What to Expect When Using Hempstar

Irish users report euphoric, focused, relaxed as the defining characteristics, and our experience aligns with that consensus. At 22% THC, this sativa sits in a potency bracket where most users find a productive sweet spot. Vaporised at 175-185°C, the initial effect is a noticeable uplift in mood and mental energy that pairs well with creative projects, hikes, or a long afternoon braai. The body remains light and mobile throughout, making this a genuine daytime option for those with THC tolerance. The Terpinolene/Limonene terpene combination imparts a flavour that lingers on the palate — complex and shifting, revealing new notes across the session.

Ideal settings: creative pursuits, social gatherings, outdoor adventures, and daytime leisure.

Terpene Breakdown

Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with terpinolene presence, but after three to four weeks in sealed glass jars at 16-18°C, the ocimene 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 ocimene molecules first.

Suitability and Recommendations

Hempstar suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar — it will not hold your hand, but it will not punish minor mistakes harshly either. Autoflowering genetics eliminate the need for light cycle manipulation, making this ideal for balcony growers, guerrilla setups, and anyone wanting a fast turnaround from seed to harvest. The Irish growing season (September through May) accommodates the 50-60 days bloom period comfortably for outdoor growers in the warmer, frost-free counties. Shipped discreetly within Ireland with sourced grow figures on every strain page.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🧠Focused
69% of people reported feeling Focused
😌Relaxed
58% of people reported feeling Relaxed
😊Happy
51% of people reported feeling Happy
🤑Energetic
44% of people reported feeling Energetic
🤩Creative
43% of people reported feeling Creative
😎Uplifted
31% of people reported feeling Uplifted
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Best For

Anytime
Depression
Nausea
Stress

Strain Type

Indica 10%Sativa 80%

Strain Data Sheet

🧬THC22% - 26% (High)
🌿LineageAutoflowering Sativa-Dominant Hybrid (Undisclosed Lineage)
🔬TypeAutoflower Sativa
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height90-120 cm. Medium
⚖️YieldMedium – High
🏠Yield Indoorup to 400 g/m2
🌳Yield Outdoorup to 550 g/plant
Flowering Time50-60 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
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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Hempstar Auto
royalkingseeds.ie
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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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