Autoflowering refers to cannabis strains that flower automatically – meaning they do so after a certain period of time, regardless of light duration. This distinguishes them from classic (photoperiodic) strains, where a shorter light duration triggers flowering.
How does Autoflowering work?
Classic cannabis plants only flower when the days get shorter – signaling the approaching autumn. Autoflowering strains ignore this light signal and switch to flowering on their own after a few weeks. This is made possible by the genetics of the robust Ruderalis subspecies.
The Advantages
- Independent of light – no need to adjust lighting.
- Fast – short total cycle from germination to harvest.
- Compact – usually smaller growth, thanks to Ruderalis genetics.
- Robust – often more resistant to difficult conditions.
Autoflowering vs. Photoperiodic
Photoperiodic strains require the right light control but often grow larger and more potent. Autoflowering strains are simpler and faster, but traditionally yield a bit less. However, modern breeding has significantly narrowed the gap.
Frequently Asked Questions
Where does the autoflowering trait come from?
From the Ruderalis subspecies, which had to flower automatically in short northern summers.
Are autos less potent?
They used to be, but hardly anymore – modern autoflowering strains are barely inferior to classic ones.
What is the main advantage?
Independence from light duration and the fast, uncomplicated cycle.
What is the difference to photoperiodic strains?
Photoperiodic strains only flower with shorter light duration, autos flower automatically after a certain time.
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