Why use a 12/12 light cycle from seed?

Written by on 5 December, 2022

As you may have noticed, in indoor marijuana growing plants receive different light cycles.

In the vegetative phase it is common to have 18/6 lighting (18 hours of light and 6 hours of total darkness) while for the flowering stage a 12/12 light cycle is used.

However, what if you implement a 12/12 marijuana growing from seed, what would happen? Well, keep reading…

12/12 method from seed and why apply it

This technique is named for the number of hours of light and darkness that the plant receives from the beginning of its plantation, that is, 12 hours of light and 12 of darkness. As soon as the strain is sexually mature, it will begin to flower.

With this method of growing the results that will be obtained will be plants of cannabis with a height lower than those which have been grown in the traditional way, for which, it can be particularly attractive for those who have an extremely limited space of growing.

This method allows you to grow sativas indoors as you will be able to control their growth a little. Some cannabis growers do not recommend applying this type of growing to the indica varieties, because they can remain excessively small.

Moreover, by applying less hours of light to the plants, you will save some money in electric current and generally, the harvest of its heads is a little faster.


As with other marijuana growing techniques, the 12/12 method also has its detractors.

Some growers claim that by skipping the vegetative phase with this planting alternative, the harvests are lower and the flowers have lower THC levels.

The only way to know the results that this method offers is to try this technique yourself, so grow your own mota!


Current track