Shorthand for “eighteen hours of light and 6 hours of darkness”. Similar to 12/12, this means to have your grow lights on for 18 straight hours, then off for the next 6 hours. This is the most common light schedule used by growers to keep
plants in the vegetative stage meaning they only grow stems and leaves (no bud).
Similar Terms
- 18 hours of light, 6 hours of darkness
- 18/6 light cycle
- Vegetative stage light cycle
- Grow light schedule
- Photosynthesis period
1. What is 18/6 in terms of cannabis cultivation?
18/6 refers to the light cycle used during the vegetative stage of cannabis growth. It means that the plants receive 18 hours of light and 6 hours of darkness each day.
2. Why is 18/6 the recommended light cycle for cannabis during the vegetative stage?
During the vegetative stage, cannabis plants require a lot of light to grow strong and healthy. The 18/6 light cycle provides them with enough light to photosynthesize and produce energy, while also allowing them to rest and recover during the 6 hours of darkness.
3. Can I use a different light cycle during the vegetative stage of cannabis growth?
While 18/6 is the recommended light cycle for cannabis during the vegetative stage, some growers may choose to use a different cycle based on their specific needs and preferences. However, it’s important to note that changing the light cycle can affect the growth and development of the plants, so it’s best to do so with caution and careful observation.
