Autoflowering Seeds: Genetics and Key Differences
Buy Seeds in the UK →Autoflowering refers to a genetically influenced developmental trait in which flowering is less dependent on day-length cues than in photoperiod-sensitive cannabis. It is not a statement about seed sex or an assurance of particular performance.
Autoflowering versus photoperiod-sensitive genetics
| Concept | Autoflowering | Photoperiod-sensitive |
|---|---|---|
| Broad flowering association | Developmental age and inherited traits | Response to day length and darkness |
| Can be feminised? | Yes | Yes |
| Guaranteed timing? | No | No |
Where does the trait come from?
Autoflowering characteristics are often discussed in connection with Cannabis ruderalis ancestry, although cannabis taxonomy and the precise histories of modern commercial lines are contested. Modern varieties may combine ancestry from several breeding populations.
Expert insight: inherited traits are not a stopwatch
Descriptions of developmental timing are estimates rather than universal biological guarantees. Genetics, variation between individual seeds and environmental context can all influence observable traits. Claims about exact weeks should be treated cautiously.
Frequently asked questions
Does autoflowering mean feminised?
No. A line can be autoflowering and either regular or feminised.
Does “ruderalis” identify a single agreed species?
Not necessarily. Scientific classifications and commercial usage differ.
Read the full seed comparison and our guide to lineage claims.