Last but not least, you save money even if you reduce only 6 hours of light per day. It equates to a reduction of 180 hours of light per month! Plants in the 18/6 cycle grow extremely well, so you’re cutting down the electricity by 180 hours in a month. And now that you look at it that way, the 18/6 cycle certainly seems like a better option, eh?
Additionally, running the lights for 24 hours at a stretch might reduce the lifespan of the light. Even expensive lights made with high-quality materials may succumb if they are forced to grow for long periods of time without rest. You may not see the difference in the light now, but as time goes by, different issues including heat will crop up all of a sudden.
In the cannabis kingdom, the Ruderalis has the answer to many problems. It’s perhaps the next best thing discovered since flatbread for several reasons. For one, they are fast, and for two, they don’t need a lot of planning.
So, without a doubt, the 18/6 cycle is perfect for autoflowering cannabis plants.
Here’s a video of autoflowers growing in a 24/0 cycle with great results
What if you can’t make up mind between 24/0 and 18/6 cycles? You want the plants to grow as much as they can. You’re convinced that the 24/0 is the way to go, but a nagging doubt makes you wonder if it’s overkill. It also logical to think that the plants need some shut eye for at least 6 hours to continue growing the next day.
But, this doesn’t mean they don’t need light at all. Like other plants, they too rely on light to produce food for themselves. Apart from their ability to flower automatically, they are just like regular plants. They require good sunlight or any other lighting source to produce good yields. So, the lighting schedule is an important factor to be considered, especially if you’re growing them indoors.
Photoperiod plants start flowering only when the period of darkness increases, but autoflowers don’t rely on any such signal to do their job. They only produce buds with time, rather than following any particular light/dark cycle.
With even 6 hours of darkness or resting period, the plant has enough time to recover and grow normally. It’s perfect for beginners that are intimidated by autoflowers. Autoflowers are programmed to grow as quickly as possible and they begin to flourish right from the get-go.
In the cannabis kingdom, the Ruderalis has the answer to many problems. It’s perhaps the next best thing discovered since flatbread for several reasons. F
In fact, many growers use Metal Halide or other more “blue” colored lights for the entire life of the plant and still produce good results. Some growers even prefer these lights for budding.
- Cannabis plants typically grow faster when they get 24 hours light/day, especially during the first month of life.
- A good choice if it gets cold and you don’t want lights to turn off! Keeping the lights on 24 hours a day can prevent the grow space from getting as cold at night
- If plants are very healthy and growing fast, it doesn’t matter if they’re more resistant to problems
Remember: Spectrum is much less important to yields than the total wattage of your lights! (More Light = More Yields)
“Auto-Flowering” strains of cannabis have different light requirements than photoperiod strains
Another consideration when growing auto-flowering plants is what light spectrum to use.
There are growers who believe auto-flowering plants need a dark period and won’t be as healthy if they get 24 hours of light a day.
Auto-flowering varieties of marijuana don’t rely on a change in light schedule to determine when to flower. These strains (sometimes called “Lowryders” or by their species name “Ruderalis”) will finish their whole life cycle in two to three months, regardless of how much light they receive a day. See a grow journal featuring auto-flowering strains.
Do Autoflowering Plants Need a Dark Period?
The next question, then, is what’s the best light schedule to give auto-flowering marijuana plants each day if you are growing indoors?
Most strains of marijuana rely on the amount of light, or their light schedule, to determine when to start flowering. "Auto-Flowering" varieties of cannabis have different light requirements…