# Kryptonite > Kryptonite by Pyramid Seeds — a feminized sativa with a germination guarantee. 20–23% THC from Yumbolt genetics: one of the fastest-flowering sativas in the world — 58 days under LED — with an intense sour-haze aroma, a cerebral psychedelic effect and up to 800–950 g/1.5 m². Who is it for? Anyone after sativa power without the long wait — an intense head effect, euphoria and a psychedelic edge in the shortest flowering time. Brand: Pyramid Seeds (Barcelona, breeding since 2000) Product page: https://pyramidseeds.com/gb/feminized-marijuana-seeds/58-kryptonite.html SKU: PYRFEMKR ## Specifications - Genotype: Índica 20% - Genotype: Sativa 80% - Genetics: Yumbolt - Aroma: Citric - Aroma: Earthy - Aroma: Fresh - Aroma: Spicy - Aroma: Pine tree - Effects: Euphoria - Effects: Cerebral stimulant - Effects: Psychedelic - Indoor yield per 1 m²: 450 gr/m2 - Outdoor yield: 0,5-1,5 kg - THC: THC 20-23% - Indoor flowering: 65 days - Outdoor flowering in Europe: week 1-2 September - Outdoor flowering in Latin America: March 1-2 week - Collection: European - Flowering type: Photodependent - Type: Feminized - CBD: Low - Difficulty Level: Moderate - Indoor yield per 1,5 m² (Expert 720 W LED): 800-950 g/1,5m² - Genotype Dominance: Predominantly Sativa - THC Level: High - CBD Level: Low - Yield Indicators (Indoor): Large - Yield Indicators (outdoor): Extra Large - Indoor flowering (LED): 58 days **Kryptonite** by Pyramid Seeds — a feminized sativa with a **germination guarantee**. **20–23% THC**, 80% sativa from the legendary **Yumbolt** line: bred in the Sierra de Granada, one of the fastest-flowering sativas in the world. Sour haze notes, an intense cerebral effect, euphoria and a psychedelic experience — in just **58 days under LED**. ## Key specifications **Genetics** | Yumbolt (Sierra de Granada selection) **Genotype** | 80% sativa / 20% indica **Flowering type** | Photoperiod, feminized **THC** | 20–23% **CBD** | Low **Flowering indoor (LED)** | **58 days** **Flowering indoor (HPS)** | 65 days **Yield indoor** | 450 g/m² | up to 800–950 g/1.5 m² (720 W LED) **Yield outdoor** | 500 g – 1.5 kg/plant **Harvest outdoor** | 1st–2nd week of September (northern hemisphere) **Dominant terpenes** | limonene, caryophyllene, pinene, myrcene **Aroma** | sour haze, citrus, pine, earthy, spicy **Effects** | cerebral, euphoric, psychedelic, stimulating **Collection** | European **Difficulty** | Moderate ## Genetics: Yumbolt from the Sierra de Granada **Kryptonite** is built on the **Yumbolt** line — a legendary sativa genetic selected and stabilised by breeders in the Sierra de Granada. Yumbolt is known for its distinctive sour-haze profile, a fast flowering time despite sativa dominance, and an intense cerebral effect. What sets Kryptonite apart from other sativas: a **58-day flowering time under LED** — exceptionally short for an 80% sativa. Typical sativas need 70–90 days. Kryptonite delivers the full sativa character in far less time — with no compromise on potency or aroma. ## Effects 80% sativa — the effect is cerebral and stimulating to match: - **Cerebral kick** — intense mental stimulation, clear thoughts - **Euphoria** — a lifted mood, energy and joy - **Psychedelic character** — a deep, layered experience - **Creative boost** — ideal for creative work and social moments - **Physical relaxation** — the 20% indica share rounds the effect off gently ## Aroma and terpene profile The signature trait of Kryptonite: sour haze notes that gain a special depth through the Yumbolt cross — rounded out by citrus, fresh pine and spicy earth. Terpene | Typical impressions | Contribution to the profile **Limonene** | Fresh, citrusy, sour | The main carrier of the haze sourness — mood-lift, euphoria **Caryophyllene** | Spicy, peppery | Gives the sativa profile a spicy depth **Pinene** | Fresh, pine-like, needle | The fresh pine component — promotes alertness **Myrcene** | Earthy, slightly fruity | Earthy base — links sativa freshness with depth ## Growing — indoor and outdoor ### Indoor growing Flowering time **58 days under LED** (HPS: 65 days). Yield: **450 g/m²** standard, up to **800–950 g/1.5 m²** with a 720 W LED. A medium-sized plant with long, dense, heavy flowers. Plan for some stretch in the flowering phase — control height with LST or SCROG. ### Outdoor growing Harvest in the **1st–2nd week of September** (northern hemisphere) — very early for an 80% sativa. Up to **1.5 kg per plant** under optimal conditions. Robust and adaptable. ## Kryptonite vs. Kryptonite Fast: a direct comparison | Kryptonite Fem | Kryptonite Fast **Flowering (LED)** | 58 days | **53 days** **THC** | 20–23% | 21–23% **Yield (LED)** | 800–950 g/1.5 m² | 800–950 g/1.5 m² **Flowering type** | Photoperiod | Fast-flowering, photo **Who is it for?** | Classic cycle, full control | Fastest harvest, more cycles ## Kryptonite family — all versions - **Kryptonite Fem** — photoperiod, 58 days LED, 20–23% THC - **Kryptonite Fast** — fast-flowering, **53 days LED** - **Auto Kryptonite** — autoflowering, 63 days, no light schedule Kryptonite is also part of the **Power Mix THC** — 12 feminized seeds from 4 strong genetics in a single pack. **Browse more Pyramid Seeds genetics:** Sativa Seeds European Seeds Kryptonite — frequently asked questions **What is Kryptonite?** Kryptonite is a feminized 80% sativa by Pyramid Seeds, built on the Yumbolt genetics from the Sierra de Granada — with 20–23% THC, a 58-day flowering time under LED and an intense cerebral, psychedelic effect. One of the fastest-flowering sativas in the world. **Is Kryptonite indica or sativa?** Kryptonite is 80% sativa / 20% indica. The effect is predominantly cerebral and stimulating — euphoric, creative and psychedelic — with the small indica share adding a gentle physical relaxation. **Why does Kryptonite flower so fast for a sativa?** The Yumbolt genetics were specifically selected for short flowering times with the full sativa character. 58 days under LED is exceptional for an 80% sativa — typical sativas need 70–90 days. Kryptonite delivers the full haze effect in far less time. **What is the difference between Kryptonite and Kryptonite Fast?** Kryptonite Fast flowers even shorter — just 53 days under LED instead of 58. THC and yield are identical. Fast is ideal for several harvests a year or when maximum speed is the priority. **Where can I buy Kryptonite seeds?** Original Kryptonite seeds with a germination guarantee are available direct from Pyramid Seeds — with fast, discreet worldwide shipping. Pyramid Seeds — over 20 years of experience in cannabis breeding. Shipped direct from Barcelona, discreet and fast, worldwide.