when do I switch the lighting?

basic760

Member

• Sep 28, 2010

• #1

My plant is 2 months and 2 weeks height: 1' 5" 150W
And I was just wondering when do I change the light time?
Right now it has 20 hr of light and 4 of dark.

Don't have any piks.

 

Concord Dawn

Well-Known Member

• Sep 28, 2010

• #2

you should switch them now, unless you want to keep growing bushes. thats plenty of vegging time. they wont show sex (if not fem seeds) or start to bud until you switch the lights to 12/12. i only veg 15 to 20 days then switch, but thats because i have limited height.

 

UncleBuck

Well-Known Member

• Sep 28, 2010

• #3

those 17'' plants will likely end up 3 feet tall or taller after you switch them to flower....which is all if not more than a 150 watt light can handle. i would switch it to 12/12 asap. good luck!

 

basic760

Member

• Sep 28, 2010

• #4

How long do I stay on the 12/12???

 

Concord Dawn

Well-Known Member

• Sep 28, 2010

• #5

12 hours on, 12 hours off, whenever you want them on like 8 am to 8 pm on, then 8 pm to 8 am off. you nee a timer.
sorry, miss read that, LoL. till the end of the grow, when the buds are done, you need to watch the trichs. see pic. depending on the strain, 8 to 12 weeks of flowering at 12/12.