The cannabis plant grows and flowers depending on the amounts of light it gets. In nature, it is an annually flowering plant that grows during the summer season and starts flowering when the days turn shorter.

When growing inside you can manipulate the plant’s lifecycle with the following basic light cycle:

• Give the plants 18-24 hours of light to keep it in vegetative state.
• Give the plants 12 hours of light to force it to start flowering.

Learn all about the best light cycles:

• The Cannabis Light Cycle
• Control Your Lighting, Control Your Cannabis
• How Much Sunlight For Outdoor Marijuana Plants

More lighting related terms:

Lighting | Dark cycle | Light shortage | Light distribution | Light spectrum | Blue light | Red light | Nanometer | Light tight | Lumen | Lux | Reflecting light | Lamp height

HPS lights | HPI lights | LED lights | Compact fluorescent lights