Autoflower light cycle

[Almostlegal (William Hansen)]

Do I need to reduce lighting time on autoflowering plants. ie 18 hrs on 6hrs off for grow period , 12 hrs on 12 hrs off for flowering.

[kmac03]

Hi William!

Welcome to Homegrown!

Here is a link to another thread that I believe will answer your question.

When to switch nutrients and lighting with autos

Auto flowers - no need to adjust lights. They auto matically flower no matter what the light schedule is. If the strain says 10 weeks, that is the total life expectancy of the plant. Since the lifespan is so short, we usually do not stress them since there is little to no recovery time. I would trim off the uinderbrush but no more than 30-40% of the fan leaves

I’m looking forward to seeing your grow!

[Mrb53004 (Mike)]

Auto flower survives at just 5 hrs of light but we want to do more than survive. The longer the light period, the greater the growth, the higher the return. I have run auto at 24/7. I kicked down to 20/4 so they get a break. The seem to produce the same but it saves on electric, heating and rh.

[Bulbous52 (ArrEll)]

Welcome William!

For Autos, I use 20/4 or 18/6 light cycles all the way to Harvest, depending on the recommendations for that strain.

Only Photoperiods need to be switched to 12/12 to begin flowering. Otherwise, they stay in Veg state…like forever.