You really need a pic but are they drooping at the end of day
and then perky in the morning yes you can make the lights run
18/6 with a timer then went they're about 12"- 15" flip the light
to 12/12 with a hps light using a timer~
Yes they are drooping at the end of the day and perky in the morning.
They are already on a 18 / 6 schedule.
And they are way bigger then 12 to 15 inches
My Blueberry is 3 feet long about 2 foot wide and 18 to 20 inches tall. ( Bending method ) Other plants are similar size. 112 cola sites ( all plants )...I don't grow pop corn, just colas.
They should be in flower by now but things went very wrong for a couple weeks, set me back a month ( for recovery )
Had to replace most of the leaves( due to damage), they were rootbound, nutes, PH were off etc.
I'm not going to start flowering until things are fixed. I don't grow half ass.