White Siberian Fast Version from Seeds66 is a compact, fast-flowering hybrid made from White Widow and AK47. Indoors the plants build a steady main stem, several productive side branches and dense buds that mature within a short flowering window. Growers often pick this line when they want a classic profile with a quicker turnaround and reliable structure under LED lighting.
Quick info: White Siberian Fast Version
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Genetics: White Widow × AK47
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Type: fast feminized, indica-leaning
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Flowering time: around 7 weeks indoors
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Yield indoor: approx. 450–550 g/m²
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Yield outdoor: up to about 800 g/plant
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THC: approx. 20–23 %
Origin & Seeds66 selection
This fast version brings together a resin-heavy White Widow line and an AK47 phenotype with a firm, body-focused effect. For the Seeds66 selection, plants with a shorter flowering window and strong side-branch formation were preferred. The structure was documented in California before the strain became part of the Seeds66 lineup.
Growth & cultivation
White Siberian Fast Version stays medium tall indoors and responds well to stable LED lighting and steady airflow. With a brief veg phase and a flowering time of roughly 7 weeks, the line fits into growers’ schedules when they want quick cycles without giving up fuller bud development. Moderate feeding works well at the start, with increases only once the foliage keeps a healthy green. In soil, an even watering schedule with light drying between waterings helps the root zone stay active; in coco or hydro, it reacts well to clean EC and consistent pH settings.
Outdoors, the plants reach notable height when they have plenty of root space and direct sun. The scent develops early, so indoor setups should use a carbon filter to keep aroma levels under control. A useful angle of this strain is that it allows growers to shorten overall turnaround while still keeping the classic resin-driven profile associated with its parents.
Seeds66 Tip: White Siberian Fast Version reacts well when the root zone gets enough oxygen. A light drying phase between small watering portions keeps the medium active and supports the short flowering window, especially under steady airflow and consistent EC values.
Aroma & terpenes
The profile blends sweet, spicy and skunky notes with a light citrus edge. Myrcene and caryophyllene are common drivers here, often accompanied by a small portion of limonene that adds brightness without pushing the aroma away from its earthy base.
Effect
White Siberian Fast Version usually starts with a clear, uplifting onset before shifting toward a heavier body sensation as the session progresses. The THC range of 20–23 % gives it noticeable strength, and many users reserve it for slower moments rather than tasks that require long focus.
Seeds66 attitude
Our approach with White Siberian Fast Version was to refine two long-established classics into a shorter, steady line that behaves predictably in common indoor setups. Only after the shortened cycle and structural consistency were repeatedly confirmed did the strain earn its place in the Seeds66 catalog.
Properties of White Siberian Fast Version
Strain White Siberian Fast Version
Type fast feminized, photoperiod, indica-leaning
Genetics White Widow × AK47
Flowering time around 7 weeks indoors, outdoor harvest late September
Yield indoor approx. 450–550 g/m²
Yield outdoor up to about 800 g/plant
Height indoor around 80–120 cm
Height outdoor up to roughly 200–230 cm
Flavour sweet, spicy, skunky with a light citrus touch
Effect uplifting onset followed by a heavier, relaxing body phase
Climate suited to temperate and warm regions with good airflow
Special notes early scent development; carbon filter recommended indoors
THC / CBD approx. 20–23 % / up to about 0.5 %
Seeds66 Editorial
All descriptions are based on our tests and documentation in California. We publish only strains we have documented ourselves. Focus: germination strength, stability and reproducible results for the European market.
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