Amnesi-K Lemon is a sativa-dominant feminised cannabis seed from Kannabia that crosses Amnesia, Lemon Skunk, and Jack Herer into one fast-flowering, citrus-heavy plant. For an 80% sativa, it finishes unusually quickly — 50 to 55 days indoors according to Kannabia — which is the main reason growers keep coming back to it. Expect grapefruit-forward flavours, sticky resin, and a plant that doesn't punish you for being new to growing.
Why Amnesi-K Lemon is worth the shelf space
A sativa that flowers in under 8 weeks is rare. Most 80% sativas make you wait 10 to 12 weeks, which is why indoor growers usually stick to indica-dominant hybrids and sigh about it. Kannabia's three-way cross gets around that by bringing Lemon Skunk into the mix — a shorter-flowering parent that pulls the finishing line forward without killing the sativa character.
The flavour is the other reason this one sells. Sweet-sour citrus up front (think fresh grapefruit rind), with a subtle incense note underneath from the Amnesia and Jack Herer parentage. It's not a one-dimensional lemon candy strain — there's depth to it. Buds come out frosty, dense for a sativa, and the terpene profile holds up through proper curing.
One honest limitation: 80% sativa genetics means the plant stretches. If you're running a 60x60 tent, top it early or train it, or it'll reach the light before week 4 of flower. We'd pair it with a 80x80 or larger if you've got the space.
What's in the pack and who it's for
Each pack contains 5 feminised seeds under SKU CSKA0048 — no males to cull, which matters when you're running a small space. Feminised means every seed should produce a flowering female, barring the usual 1–2% hermie rate any breeder will quietly admit exists.
| Spec | Value |
|---|---|
| Breeder | Kannabia Seed Company |
| Genetics | Amnesia × Lemon Skunk × Jack Herer |
| Type | Feminised, photoperiod |
| Sativa / Indica | 80% / 20% |
| Indoor flowering | 50–55 days |
| Indoor yield | Up to 500 g/m² |
| Outdoor yield | 600–700 g per plant |
| Outdoor harvest | Late September – early October |
| Climate | Warm / Mediterranean preferred |
| Flavour profile | Grapefruit, sweet-sour citrus, incense |
| Pack size | 5 seeds |
| SKU | CSKA0048 |
How Amnesi-K Lemon compares to similar sativa seeds
If you're weighing Amnesi-K Lemon against other citrus-forward sativas in the Kannabia and broader catalogue, here's the shop-floor view.
| Strain | Flowering | Sativa % | Indoor yield |
|---|---|---|---|
| Amnesi-K Lemon | 50–55 days | 80% | 500 g/m² |
| Classic Amnesia Haze | 65–75 days | 80% | 500–600 g/m² |
| Lemon Skunk | 55–60 days | 60% | 400–500 g/m² |
The trade-off is honest: Amnesi-K Lemon gives you most of the Amnesia character two to three weeks earlier. You lose a sliver of the classic Haze complexity, you gain a harvest cycle per year indoors. For commercial growers or anyone paying electricity bills in 2026, that maths adds up fast.
How to grow Amnesi-K Lemon
This is one of the more forgiving sativas on the shelf — Kannabia markets it as straightforward, and growers generally agree. Still, 80% sativa genetics means you plan for height.
- Germinate using the paper-towel method or straight into a small peat plug. Keep at 22–25°C, dark, moist not wet. Tap root usually shows in 48–72 hours.
- Veg for 3–4 weeks indoors if you're topping, 2 weeks if you're running SOG. This strain stretches roughly 2x in flower — shorter veg keeps the canopy manageable.
- Top once or twice at the 4th–5th node, or use LST to spread the main cola. Scrog nets work especially well here given the stretch.
- Flip to 12/12 when plants are half the height of your tent. Feed moderately — this plant doesn't need heavy nutrients to perform.
- Flush the last 10–14 days. The citrus terps are delicate and a clean flush preserves them through cure.
- Harvest at 50–55 days indoors, or late September to early October outdoors. Check trichomes: cloudy with 10–20% amber for a balanced effect.
- Dry slowly at 18–20°C for 10–14 days, then cure in glass jars for at least 3 weeks. The grapefruit nose rewards patience.
Complete your grow: pair Amnesi-K Lemon with a quality 80x80 grow tent and a carbon filter to keep the citrus terpenes contained — this plant puts out serious smell in late flower. A pH meter and a decent LED in the 300–400W range will get you to that 500 g/m² figure Kannabia quotes.
Effects, terpenes, and what the research says
Kannabia describes the effect as activating, energising, and suitable for daytime use — typical of a sativa-dominant strain with strong Amnesia heritage. According to Mother of Berries, ACDC, or Chocolope (Pearce et al., 2018), strain names often reflect their psychoactive signature, and Amnesia-lineage strains consistently track to intense cerebral effects in user reporting.
The citrus terpene profile is dominated by limonene, which according to Neuroprotective Potential of Limonene (2021) interacts with GABA-A receptor sites in preclinical models. Pinene also typically appears in Amnesia crosses — according to The Individual and Interactive Effects of Alpha-Pinene, α-pinene is among the most abundant terpenes in cannabis and has been studied for its purported neuroprotective activity. β-caryophyllene, the peppery note some growers pick up in the cure, is described in The Cannabis Terpenes (PMC7763918) as the most available sesquiterpenoid in cannabis extracts.
Honest note on potency: sativa-dominant strains with high THC are more likely to produce anxiety in inexperienced users or at high doses. According to First, Do No Harm (NBK230709), there are clinical reports of cannabis-induced psychosis-like states at heavy use levels. This guide is written for adults aged 18 and over — new users should start low and go slow.
Frequently Asked Questions
Is Amnesi-K Lemon sativa or indica?
It's sativa-dominant — 80% sativa, 20% indica. The leaf shape and stretch in flower both reflect the sativa genetics. Expect an uplifting, daytime-leaning effect profile rather than a couch-lock.
How long does Amnesi-K Lemon take to flower?
Kannabia lists 50–55 days indoors, which is short for an 80% sativa. Outdoors, harvest falls between late September and early October in Mediterranean climates. Some grow logs report 55–65 days depending on phenotype and conditions.
What yield can I expect?
Up to 500 g/m² indoors with proper training and lighting, and 600–700g per plant outdoors in a warm climate. First-time growers typically land 60–75% of the quoted figures — still a solid return for a fast-finishing sativa.
Is this strain beginner-friendly?
Yes, by sativa standards. Kannabia describes it as straightforward, with good pest resistance and forgiving feeding requirements. The main thing to watch is height — top or train early to manage the stretch in a smaller tent.
What does Amnesi-K Lemon taste like?
Sweet-sour citrus with a strong grapefruit note up front, and subtle incense undertones underneath from the Amnesia and Jack Herer parents. A slow cure of 3+ weeks in glass jars brings out the full terpene depth.
Can I grow this outdoors in Northern Europe?
It's possible but not ideal. The 80% sativa genetics prefer warm, long-season climates. In the Netherlands, UK, or Germany you'll want a greenhouse or a sunny, sheltered spot — and accept smaller yields than the Mediterranean figures suggest.
Last updated: April 2026
