Consider Your Climate When Choosing An Auto Light Schedule. While 18/6 and 20/4 are fantastic light schedules for most auto cultivators, please remember you don’t need to set these timers during the daytime. Most home-growers set their lights to turn on during the coolest hours of the day.
How much light (PPFD) do autoflower cannabis plants need? Many growers tend to deliver slightly lower PPFD levels to autos compared to feminised strains. That’s because autoflowers grow with (typically) 20 hours of daily light, significantly longer than the 12 hours used by photoperiod strains.
Some growers have settled on a compromise between standard 12/12 photoperiod light cycles, and 24-hours of light that autoflowers may be able to handle. This has produced the most commonly used light schedule for autoflowers, of 18/6. Or, 18 hours of light and 6 hours of darkness. This schedule, of course, has pro’s and con’s itself.
In general, however, most growers opt to give their plants 18 hours of light followed by 6 hours of uninterrupted darkness during the vegetative phase. That said, some growers opt to veg their plants under 24 hours of continuous light, and achieve good results. Besides a hefty power bill, however, a 24-hour light cycle may produce stress in
So, before we conclude our guide on achieving maximum yields with autoflowers, here is a list of the highest-yielding autoflowers from Royal Queen Seeds. 1. Northern Light Automatic. Northern Light is a legendary cannabis strain that derives from Afghan indica genetics. First bred in the 1970s US, and coming to Europe in the 80s, this indica is
Like with a photoperiod cannabis strain, we recommend sticking to the following light spectrums: 6500K blue light during veg: Blue light spectrums have been shown to encourage vegetative growth, helping cannabis plants grow short and stocky while minimising stretching. 2700K red light during flowering: Red light spectrums are ideal for bloom
Autoflowers are a unique type of cannabis plant that grow relatively short and flower automatically around 3-5 weeks after germination, taking around 30% less time than traditional cannabis plants without the need to change the light cycle to 12/12. If you’re feeding 2-3 liters of water, simply use plain water after correcting the pH without any nutrients. If the size of the container is about 3 gallons, you can use about 6-10 gallons to remove all the excess nutrients. How to flush autoflowering cannabis. Generally, tap water is used to flush plants.
The “best” autoflower light cycle can be subjective and may depend on specific growing conditions and goals. However, a large number of cultivators favor the 18/6 light cycle for autoflowers – 18 hours of light and 6 hours of darkness. This schedule provides ample light for photosynthesis and growth, while also giving the plants a

Step 3: The screening process. With the screen in place, it’s time to start low-stress training your autoflowers in earnest. The aim is to expose each branch to the maximum amount of light for productive yields of dense, resinous buds. Start LST your autoflowers into the screen with the outer branches first.

Store the paper towels: Place the paper towels with the seeds inside a plastic bag or a container with a lid. Make sure the container is kept in a warm and dark place. Monitor the seeds: Check on the seeds every 12-24 hours and make sure the paper towels remain moist. If they start to dry out, mist them with water. Tips for Growing Autoflower. Time is limited due to the accelerated growth rate of autoflowers. Top your cannabis plants after 3 nodes. A normal light cycle isn’t needed for autoflowering cannabis but warmth is. Autoflowering weed won’t require as much feeding as regular sativa and indica cannabis plants.
Sometimes, even a 18/6 light cycle was too much. People were advised to switch to something like 16/8, 14/10, or even 12/12. There’s even a term for this type of plants — superautos .
Flowering. When autoflowering cannabis starts to flowers it doesn’t need as much nitrogen anymore. Nitrogen mainly increases the growth of stems, leaves, and other green mass but when a plant starts flowering you need it to stay the same size and pump energy in flowers, not other features.
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  • how much light do autoflowers need